CVE-2024-56605

HIGHNVD 7.87.8
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to NVD's CVSS score.

Score 7.8 from GitHub Security Advisory (severity: HIGH) published 2024-12-27. NVD baseline CVSS 7.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, NVD CVSS v3

Also known asEUVD-2024-53253 (ENISA EUVD) · GHSA-8g4q-j62f-4359 (GitHub Security Advisories)Source: ENISA EUVD

7.8EG
EchelonGraph verdictPlan a fixRemediate within your standard update timelines (the SSVC decision on this page).
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.2%CVSS: 7.8Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

In the Linux kernel, the following vulnerability has been resolved:

Bluetooth: L2CAP: do not leave dangling sk pointer on error in l2cap_sock_create()

bt_sock_alloc() allocates the sk object and attaches it to the provided sock object. On error l2cap_sock_alloc() frees the sk object, but the dangling pointer is still attached to the sock object, which may create use-after-free in other code.

CVSS v3
7.8
EG Score
7.8HIGHmedium confidence
EG Risk
35
EG Risk 35/100

EG Risk is EchelonGraph's 0–100 priority score. It fuses impact severity (EG Severity, the CVSS base score, never the KEV-floored or EPSS-lifted EG Score) with real-world exploitation and automatability, under weights EchelonGraph set by hand, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner.

How it’s computed (value × EchelonGraph’s weight)
Severity78% × 45%
Impact severity (EG Severity): CVSS 7.8 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation0.2% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability0% × 15%
CISA's SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Track* at high (mission-essential systems).
Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.2%
EPSS %ILE
15th
KEV
Not listed

What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)

The EG score (7.8): severity, escalated by confirmed exploitation. This CVE's 7.8 is its impact severity (EG Severity), not escalated.

EG Severity
7.8 HIGHCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
EG Likelihood
0.2% within 30 daysSource: FIRST EPSS. FIRST's exploitation probability, not an EchelonGraph model.
Confirmed exploitation
None on record (CISA KEV, EG-KEV Tier 1)Reported apart from the likelihood: an observed fact, not a probability.
EG Priority
SSVC Track at medium mission impactTrack at low or medium mission impact; Track* at high (mission-essential systems).CISA BOD 26-04: 14 days if the affected system is publicly exposed; Fix on system upgrade if it is not.Each input and its source, and whom BOD 26-04 binds: the SSVC and BOD 26-04 blocks below.

SSVC (CISA's decision table, applied by EchelonGraph)Track at low or medium mission impact; Track* at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)14 days if the affected system is publicly exposed; Fix on system upgrade if it is not.

The score's inputs: In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

December 27, 2024

Last Modified

August 5, 2026

Advisory Details (7)

Auto-updated Aug 4, 2026
Patch available.
Web page

Bluetooth: L2CAP: do not leave dangling sk pointer on error in l2cap_sock_create() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/7c4f78cdb8e7501e9f92d291a7d956591bf73be9
Web page

Bluetooth: L2CAP: do not leave dangling sk pointer on error in l2cap_sock_create() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/61686abc2f3c2c67822aa23ce6f160467ec83d35
Web page

Bluetooth: L2CAP: do not leave dangling sk pointer on error in l2cap_sock_create() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/8ad09ddc63ace3950ac43db6fbfe25b40f589dd6
Web page

Bluetooth: L2CAP: do not leave dangling sk pointer on error in l2cap_sock_create() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/bb2f2342a6ddf7c04f9aefbbfe86104cd138e629
Web page

Bluetooth: L2CAP: do not leave dangling sk pointer on error in l2cap_sock_create() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/a8677028dd5123e5e525b8195483994d87123de4
Web page

Bluetooth: L2CAP: do not leave dangling sk pointer on error in l2cap_sock_create() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/daa13175a6dea312a76099066cb4cbd4fc959a84
Web page

Bluetooth: L2CAP: do not leave dangling sk pointer on error in l2cap_sock_create() - kernel/git/stable/linux.git - Linux kernel stable tree

https://git.kernel.org/stable/c/f6ad641646b67f29c7578dcd6c25813c7dcbf51e

Vendor Advisories for CVE-2024-56605(2)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Patch Availability(31)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
ubuntulinux-tools-raspi-hwe-18.04-edge (5.4.0.1129.142~18.04.1) @ bionic2026-10-27ubuntu
ubuntulinux-virtual-hwe-20.04-edge (5.15.0.135.133) @ jammy2026-10-27ubuntu
ubuntulinux-virtual-hwe-20.04-edge (5.15.0.136.147~20.04.1) @ focal2026-10-27ubuntu
ubuntulinux-tools-iot (5.4.0.1048.46) @ focal2026-10-27ubuntu
ubuntulinux-tools-azure-fde-edge (5.15.0.1086.95~20.04.1.61) @ focal2026-10-27ubuntu
ubuntulinux-tools-ibm-edge (5.4.0.1090.95~18.04.1) @ bionic2026-10-27ubuntu
ubuntulinux-tools-raspi (6.8.0-1028.32) @ noble2026-10-27ubuntu
ubuntulinux-virtual (6.8.0-58.60) @ noble2026-10-27ubuntu
ubuntulinux-tools-intel-iotg-edge (5.15.0.1077.83~20.04.1) @ focal2026-10-27ubuntu
ubuntulinux-tools-kvm (5.15.0.1076.72) @ jammy2026-10-27ubuntu
ubuntulinux-xilinx-zynqmp-tools-host (5.15.0-1044.48) @ jammy2026-10-27ubuntu
ubuntulinux-virtual-hwe-18.04-edge (5.4.0.211.206) @ focal2026-10-27ubuntu
ubuntulinux-tools-gcp-fips (5.4.0.1145.87) @ focal2026-10-27ubuntu
ubuntulinux-tools-aws-lts-20.04 (5.4.0.1142.139) @ focal2026-10-27ubuntu
ubuntulinux-tools-fips (5.4.0.1116.113) @ focal2026-10-27ubuntu
ubuntulinux-tools-raspi (6.11.0-1010.10) @ oracular2026-10-27ubuntu
ubuntulinux-tools-aws-edge (5.4.0.1142.152~18.04.1) @ bionic2026-10-27ubuntu
ubuntulinux-tools-aws-fips (5.4.0.1142.89) @ focal2026-10-27ubuntu
ubuntulinux-tools-aws-edge (6.8.0-1027.29~22.04.1) @ jammy2026-10-27ubuntu
ubuntulinux-tools-raspi-realtime (6.8.0-2023.24) @ noble2026-10-27ubuntu
ubuntulinux-tools-ibm-edge (5.15.0.1074.77~20.04.1) @ focal2026-10-27ubuntu
ubuntulinux-tools-raspi2-hwe-18.04-edge (5.4.0.1129.160) @ focal2026-10-27ubuntu
ubuntulinux-tools-gcp-edge (5.15.0.1081.90~20.04.1) @ focal2026-10-27ubuntu
ubuntulinux-tools-realtime-hwe-24.04 (6.8.1-1020.21) @ noble2026-10-27ubuntu
ubuntulinux-tools-gcp-edge (6.8.0-1028.30~22.04.1) @ jammy2026-10-27ubuntu
ubuntulinux-tools-azure-nvidia (6.8.0-1014.15) @ noble2026-10-27ubuntu
ubuntulinux-tools-gcp-fips (5.15.0.1079.69) @ jammy2026-10-27ubuntu
ubuntulinux-virtual-hwe-22.04-edge (6.8.0-58.60~22.04.1) @ jammy2026-10-27ubuntu
ubuntulinux-xilinx-zynqmp-tools-5.4.0-1060 (5.4.0-1060.64) @ focal2026-10-27ubuntu
redhatkernel-0:5.14.0-570.12.1.el9_62025-05-13redhat
linuxKernel @ 5.4.287 (fixes >=3.6.0)—osv

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(5 across 4 ecosystems)
Debian:11(2)
PackageVulnerable rangeFix by version rangeDependents
linux5.10.103-1 ... 5.10.92-2 (44 versions)
  • every version up to 5.10.234-1: fixed in 5.10.234-1
—
linux-6.16.1.106-3~deb11u1, 6.1.106-3~deb11u2, 6.1.106-3~deb11u3, 6.1.112-1~deb11u1, 6.1.119-1~deb11u1
  • every version up to 6.1.128-1~deb11u1: fixed in 6.1.128-1~deb11u1
—
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
linux6.1.106-1 ... 6.1.99-1 (32 versions)
  • every version up to 6.1.123-1: fixed in 6.1.123-1
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
linux—
  • every version up to 6.12.5-1: fixed in 6.12.5-1
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
linux—
  • every version up to 6.12.5-1: fixed in 6.12.5-1
—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Additional Vendor Advisories

(23)

Data Freshness Timeline

(refreshed 9× in last 7d / 38× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed its CVE.org record (CNA or CISA ADP). An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). "EchelonGraph re-scored" is our own recompute of this CVE's score, not an update from a source, and is not counted in the refreshes above. Most recent first.

Showing the most recent 100 of 240 rows on record for this CVE, as 95 entries (5 repeats merged).

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. 5 repeat rows among the latest 100 are merged into the row they repeat. The 140 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-11-13 16:48 UTCEPSS rescoreEPSS 0.2% · 15th percentile
  2. 2026-11-12 16:31 UTCEPSS rescoreEPSS 0.2% · 15th percentile
  3. 2026-11-11 16:35 UTCEPSS rescoreEPSS 0.2% · 15th percentile
  4. 2026-11-10 16:39 UTCEPSS rescoreEPSS 0.2% · 15th percentile
  5. 2026-11-10 13:44 UTCEchelonGraph re-scored
  6. 2026-11-10 13:44 UTCVendor advisory
  7. 2026-11-10 13:44 UTCGHSA enrichmentGHSA-8g4q-j62f-4359 · GitHub severity HIGH · GitHub CVSS 7.8
  8. 2026-11-09 16:32 UTCEPSS rescoreEPSS 0.2% · 15th percentile
  9. 2026-11-08 16:36 UTCEPSS rescoreEPSS 0.2% · 15th percentile
  10. 2026-11-07 16:36 UTCEPSS rescoreEPSS 0.2% · 15th percentile
  11. 2026-11-06 16:32 UTCEPSS rescoreEPSS 0.2% · 15th percentile
  12. 2026-11-05 16:34 UTCEPSS rescoreEPSS 0.2% · 15th percentile
  13. 2026-11-04 16:32 UTCEPSS rescoreEPSS 0.2% · 15th percentile
  14. 2026-11-03 16:55 UTCEchelonGraph re-scored
  15. 2026-11-03 16:55 UTCVendor advisory
  16. 2026-11-03 16:55 UTCGHSA enrichmentGHSA-8g4q-j62f-4359 · GitHub severity HIGH · GitHub CVSS 7.8
  17. 2026-11-03 16:43 UTCEPSS rescoreEPSS 0.2% · 15th percentile
  18. 2026-11-02 16:41 UTCEPSS rescoreEPSS 0.2% · 15th percentile
  19. 2026-11-01 16:32 UTCEPSS rescoreEPSS 0.2% · 15th percentile
  20. 2026-10-31 16:30 UTCEPSS rescoreEPSS 0.2% · 15th percentile
  21. 2026-10-30 16:32 UTCEPSS rescoreEPSS 0.2% · 15th percentile
  22. 2026-10-29 16:31 UTCEPSS rescoreEPSS 0.2% · 15th percentile
  23. 2026-10-28 16:30 UTCEPSS rescoreEPSS 0.2% · 15th percentile
  24. 2026-10-27 18:10 UTCEchelonGraph re-scored
  25. 2026-10-27 18:10 UTCVendor advisory
Show 70 more
  1. 2026-10-27 18:09 UTCGHSA enrichmentGHSA-8g4q-j62f-4359 · GitHub severity HIGH · GitHub CVSS 7.8
  2. 2026-10-27 16:30 UTCEPSS rescoreEPSS 0.2% · 15th percentile
  3. 2026-10-26 16:29 UTCEPSS rescoreEPSS 0.2% · 15th percentile
  4. 2026-10-25 16:55 UTCEchelonGraph re-scored
  5. 2026-10-25 16:30 UTCEPSS rescoreEPSS 0.2% · 15th percentile
  6. 2026-10-24 16:30 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  7. 2026-10-23 16:30 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  8. 2026-10-22 16:31 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  9. 2026-10-21 16:30 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  10. 2026-10-20 16:30 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  11. 2026-10-19 16:30 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  12. 2026-10-19 15:23 UTCEchelonGraph re-scored
  13. 2026-10-19 15:23 UTCVendor advisory
  14. 2026-10-19 15:22 UTCGHSA enrichmentGHSA-8g4q-j62f-4359 · GitHub severity HIGH · GitHub CVSS 7.8
  15. 2026-10-18 16:30 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  16. 2026-10-18 05:58 UTCEchelonGraph re-scored
  17. 2026-10-17 16:31 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  18. 2026-10-16 16:37 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  19. 2026-10-15 16:30 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  20. 2026-10-14 16:30 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  21. 2026-10-13 16:31 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  22. 2026-10-12 17:37 UTCEchelonGraph re-scored
  23. 2026-10-12 16:31 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  24. 2026-10-11 21:03 UTCEchelonGraph re-scored
  25. 2026-10-11 15:54 UTCEchelonGraph re-scored
  26. 2026-10-11 13:46 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  27. 2026-10-10 19:58 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  28. 2026-10-09 20:05 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  29. 2026-10-08 17:08 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  30. 2026-10-07 23:46 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  31. 2026-10-06 15:16 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  32. 2026-10-05 17:41 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  33. 2026-10-04 23:20 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  34. 2026-10-03 14:24 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  35. 2026-10-02 16:25 UTCEchelonGraph re-scored
  36. 2026-10-01 19:48 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  37. 2026-09-30 15:02 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  38. 2026-09-28 13:50 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  39. 2026-09-27 13:44 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  40. 2026-09-26 22:12 UTCOSV refresh
  41. 2026-09-26 15:57 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  42. 2026-09-24 14:01 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  43. 2026-09-23 13:46 UTCEPSS rescoreEPSS 0.2% · 15th percentile
  44. 2026-09-22 14:47 UTCEPSS rescoreEPSS 0.2% · 15th percentile
  45. 2026-09-20 20:14 UTCEPSS rescoreEPSS 0.2% · 15th percentile
  46. 2026-09-18 19:26 UTCEPSS rescoreEPSS 0.2% · 15th percentile
  47. 2026-09-16 14:06 UTCEPSS rescoreEPSS 0.2% · 15th percentile
  48. 2026-09-16 05:12 UTCEPSS rescoreEPSS 0.2% · 15th percentile
  49. 2026-09-15 03:08 UTCEPSS rescoreEPSS 0.2% · 15th percentile
  50. 2026-09-13 16:45 UTCEPSS rescoreEPSS 0.2% · 15th percentile
  51. 2026-09-12 14:59 UTCEPSS rescoreEPSS 0.2% · 15th percentile
  52. 2026-09-11 14:51 UTCEPSS rescoreEPSS 0.2% · 15th percentile
  53. 2026-09-11 09:35 UTCEPSS rescoreEPSS 0.2% · 15th percentile
  54. 2026-09-10 09:33 UTCEPSS rescoreEPSS 0.2% · 15th percentile
  55. 2026-09-08 21:59 UTCEPSS rescoreEPSS 0.2% · 15th percentile
  56. 2026-09-07 16:00 UTCEPSS rescoreEPSS 0.2% · 15th percentile
  57. 2026-09-07 08:18 UTCOSV refresh
  58. 2026-09-06 13:46 UTCEPSS rescoreEPSS 0.2% · 15th percentile
  59. 2026-09-04 13:59 UTCEPSS rescoreEPSS 0.2% · 15th percentile
  60. 2026-09-04 05:05 UTCEPSS rescoreEPSS 0.2% · 15th percentile
  61. 2026-09-02 14:10 UTCEPSS rescoreEPSS 0.2% · 15th percentile
  62. 2026-09-01 13:52 UTCEPSS rescoreEPSS 0.2% · 15th percentile
  63. 2026-08-30 19:16 UTCEPSS rescoreEPSS 0.2% · 15th percentile
  64. 2026-08-30 01:21 UTCEPSS rescoreEPSS 0.2% · 15th percentile
  65. 2026-08-28 21:39 UTCEPSS rescoreEPSS 0.2% · 15th percentile
  66. 2026-08-27 14:24 UTCEPSS rescoreEPSS 0.2% · 15th percentile
  67. 2026-08-26 14:44 UTCEPSS rescoreEPSS 0.2% · 15th percentile
  68. 2026-08-25 13:47 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  69. 2026-08-24 14:15 UTCEPSS rescoreEPSS 0.2% · 14th percentile
  70. 2026-08-23 00:18 UTCEPSS rescoreEPSS 0.2% · 15th percentile

Frequently asked(5)

What is CVE-2024-56605?
CVE-2024-56605 is a high-severity vulnerability; its CVE record was published on December 27, 2024. In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: do not leave dangling sk pointer on error in l2cap_sock_create() bt_sock_alloc() allocates the sk object and attaches it to the provided sock object. On error l2cap_sock_alloc() frees the sk object, but the…
When was the CVE record for CVE-2024-56605 published?
The CVE record for CVE-2024-56605 was published on December 27, 2024. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of August 5, 2026; the record at its source may have been updated since.
Is CVE-2024-56605 actively exploited?
CVE-2024-56605 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.2% probability of exploitation in the next 30 days (15th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2024-56605?
CVE-2024-56605 has a CVSS v3 base score of 7.8 (NVD).
How do I remediate CVE-2024-56605?
A fix for CVE-2024-56605 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2024-56605 are linked in the Vendor Advisories panel on this page.

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