CVE-2024-23836

HIGHNVD 7.57.5
EchelonGraph scoreMEDIUM confidence

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

This high-severity CVE scores 7.5 under NVD CVSS v3. EPSS exploit probability: 1.2% (67th percentile of EPSS-scored CVEs). No GitHub Security Advisory CVSS is on record for this CVE.

Triggered by: Headline CVSS from NVD CVSS v3
Sources: EPSS, NVD CVSS v3

Also known asEUVD-2024-21278 (ENISA EUVD)Source: ENISA EUVD

7.5EG
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: 1.2%CVSS: 7.5Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. Prior to versions 6.0.16 and 7.0.3, an attacker can craft traffic to cause Suricata to use far more CPU and memory for processing the traffic than needed, which can lead to extreme slow downs and denial of service. This vulnerability is patched in 6.0.16 or 7.0.3. Workarounds include disabling the affected protocol app-layer parser in the yaml and reducing the stream.reassembly.depth value helps reduce the severity of the issue.

CVSS v3
7.5
EG Score
7.5HIGHmedium confidence
EG Risk
34
EG Risk 34/100

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)
Severity75% × 45%
Impact severity (EG Severity): CVSS 7.5 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation1.2% × 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 every mission impact level.
Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (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
1.2%
EPSS %ILE
67th
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 (7.5): severity, escalated by confirmed exploitation. This CVE's 7.5 is its impact severity (EG Severity), not escalated.

EG Severity
7.5 HIGHCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.NVD CVSS v3 · CVSS v3.0 or v3.1
EG Likelihood
1.2% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-11-10). 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 every mission impact level.CISA BOD 26-04: 60 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 every mission impact level.

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

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (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)60 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 partial (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

February 26, 2024

Last Modified

December 19, 2024

Advisory Details (10)

Auto-updated Nov 11, 2026
Patch available. Sources: github_commit.
GitHub commit Patch Available

commit f9de1cca6182 (OISF/suricata)

Patch available: OISF/suricata suricata-7.0.3 (contains commit f9de1cca6182)

https://github.com/OISF/suricata/commit/f9de1cca6182e571f1c02387dca6e695e55608af
GitHub commit Patch Available

commit e7e28822f473 (OISF/suricata)

Patch available: OISF/suricata suricata-7.0.3 (contains commit e7e28822f473)

https://github.com/OISF/suricata/commit/e7e28822f473320658d6125f16ac3f0524baff01
GitHub commit Patch Available

commit ce9b90326949 (OISF/suricata)

Patch available: OISF/suricata suricata-7.0.3 (contains commit ce9b90326949)

https://github.com/OISF/suricata/commit/ce9b90326949c94a46611d6394e28600ee5e8bd5
GitHub commit Patch Available

commit cd035d59e3df (OISF/suricata)

Patch available: OISF/suricata suricata-7.0.3 (contains commit cd035d59e3df)

https://github.com/OISF/suricata/commit/cd035d59e3df157b606f4fe67324ea8e437be786
GitHub commit Patch Available

commit b1549e930f64 (OISF/suricata)

Patch available: OISF/suricata suricata-6.0.17 (contains commit b1549e930f64)

https://github.com/OISF/suricata/commit/b1549e930f6426eeff43f12b672337cbcda566b8
GitHub commit Patch Available

commit 97953998d2d6 (OISF/suricata)

Patch available: OISF/suricata suricata-7.0.3 (contains commit 97953998d2d6)

https://github.com/OISF/suricata/commit/97953998d2d60673ed6c30ddfb6a2d59b4230f97
GitHub commit Patch Available

commit 8efaebe293e2 (OISF/suricata)

Patch available: OISF/suricata suricata-6.0.17 (contains commit 8efaebe293e2)

https://github.com/OISF/suricata/commit/8efaebe293e2a74c8e323fa85a6f5fadf82801bc
GitHub commit Patch Available

commit 83c5567ea7b0 (OISF/suricata)

Patch available: OISF/suricata suricata-6.0.17 (contains commit 83c5567ea7b0)

https://github.com/OISF/suricata/commit/83c5567ea7b0b28376f57dcfee9c6301448c7bc7
GitHub commit Patch Available

commit 2a2120ecf10c (OISF/suricata)

Patch available: OISF/suricata suricata-6.0.17 (contains commit 2a2120ecf10c)

https://github.com/OISF/suricata/commit/2a2120ecf10c5b5713ec2bf59469fe57f7b5b747
GitHub commit Patch Available

commit 18841a58da71 (OISF/suricata)

Patch available: OISF/suricata suricata-6.0.17 (contains commit 18841a58da71)

https://github.com/OISF/suricata/commit/18841a58da71e735ddf4e52cbfa6989755ecbeb7

Affected Packages

(3 across 3 ecosystems)
Debian:11(1)
PackageVulnerable rangeFix by version rangeDependents
suricata1:6.0.1-3 ... 1:8.0.6-1~bpo13+1 (75 versions)
  • every version on: no fix on record
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
suricata—
  • every version up to 1:7.0.3-1: fixed in 1:7.0.3-1
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
suricata—
  • every version up to 1:7.0.3-1: fixed in 1:7.0.3-1
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 7× in last 7d / 30× 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 221 rows on record for this CVE, as 98 entries (2 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. 2 repeat rows among the latest 100 are merged into the row they repeat. The 121 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-11-13 16:46 UTCEPSS rescoreEPSS 1.2% · 67th percentile
  2. 2026-11-12 16:31 UTCEPSS rescoreEPSS 1.2% · 67th percentile
  3. 2026-11-11 16:34 UTCEPSS rescoreEPSS 1.2% · 67th percentile
  4. 2026-11-11 15:50 UTCEchelonGraph re-scored
  5. 2026-11-10 16:38 UTCEPSS rescoreEPSS 1.2% · 67th percentile
  6. 2026-11-09 16:31 UTCEPSS rescoreEPSS 1.2% · 67th percentile
  7. 2026-11-08 16:35 UTCEPSS rescoreEPSS 1.2% · 67th percentile
  8. 2026-11-07 16:35 UTCEPSS rescoreEPSS 1.2% · 67th percentile
  9. 2026-11-06 16:31 UTCEPSS rescoreEPSS 1.2% · 67th percentile
  10. 2026-11-05 16:33 UTCEPSS rescoreEPSS 1.2% · 67th percentile
  11. 2026-11-04 16:32 UTCEPSS rescoreEPSS 1.2% · 67th percentile
  12. 2026-11-04 11:32 UTCEchelonGraph re-scored
  13. 2026-11-03 16:42 UTCEPSS rescoreEPSS 1.2% · 67th percentile
  14. 2026-11-02 16:40 UTCEPSS rescoreEPSS 1.2% · 67th percentile
  15. 2026-11-01 16:31 UTCEPSS rescoreEPSS 1.2% · 67th percentile
  16. 2026-10-31 16:30 UTCEPSS rescoreEPSS 1.2% · 67th percentile
  17. 2026-10-30 16:31 UTCEPSS rescoreEPSS 1.2% · 67th percentile
  18. 2026-10-29 16:30 UTCEPSS rescoreEPSS 1.2% · 67th percentile
  19. 2026-10-28 16:29 UTCEPSS rescoreEPSS 1.2% · 67th percentile
  20. 2026-10-28 07:12 UTCEchelonGraph re-scored
  21. 2026-10-27 16:29 UTCEPSS rescoreEPSS 1.2% · 67th percentile
  22. 2026-10-26 16:29 UTCEPSS rescoreEPSS 1.2% · 67th percentile
  23. 2026-10-25 17:17 UTCEchelonGraph re-scored
  24. 2026-10-25 16:30 UTCEPSS rescoreEPSS 1.2% · 67th percentile
  25. 2026-10-24 16:30 UTCEPSS rescoreEPSS 1.2% · 67th percentile
Show 73 more
  1. 2026-10-23 16:29 UTCEPSS rescoreEPSS 1.2% · 67th percentile
  2. 2026-10-22 16:31 UTCEPSS rescoreEPSS 1.2% · 66th percentile
  3. 2026-10-21 16:29 UTCEPSS rescoreEPSS 1.2% · 66th percentile
  4. 2026-10-20 20:29 UTCEchelonGraph re-scored
  5. 2026-10-20 16:30 UTCEPSS rescoreEPSS 1.2% · 66th percentile
  6. 2026-10-19 16:29 UTCEPSS rescoreEPSS 1.2% · 66th percentile
  7. 2026-10-18 16:29 UTCEPSS rescoreEPSS 1.2% · 66th percentile
  8. 2026-10-18 07:25 UTCEchelonGraph re-scored
  9. 2026-10-17 16:30 UTCEPSS rescoreEPSS 1.2% · 66th percentile
  10. 2026-10-16 16:36 UTCEPSS rescoreEPSS 1.2% · 66th percentile
  11. 2026-10-15 16:29 UTCEPSS rescoreEPSS 1.2% · 66th percentile
  12. 2026-10-14 16:30 UTCEPSS rescoreEPSS 1.2% · 66th percentile
  13. 2026-10-13 16:30 UTCEPSS rescoreEPSS 1.2% · 66th percentile
  14. 2026-10-12 18:01 UTCEchelonGraph re-scored
  15. 2026-10-12 16:31 UTCEPSS rescoreEPSS 1.2% · 66th percentile
  16. 2026-10-11 22:24 UTCOSV refresh
  17. 2026-10-11 21:26 UTCEchelonGraph re-scored
  18. 2026-10-11 16:19 UTCEchelonGraph re-scored
  19. 2026-10-11 13:45 UTCEPSS rescoreEPSS 1.2% · 66th percentile
  20. 2026-10-10 19:58 UTCEPSS rescoreEPSS 1.2% · 66th percentile
  21. 2026-10-09 20:05 UTCEPSS rescoreEPSS 1.2% · 66th percentile
  22. 2026-10-08 17:07 UTCEPSS rescoreEPSS 1.2% · 66th percentile
  23. 2026-10-07 23:46 UTCEPSS rescoreEPSS 1.2% · 66th percentile
  24. 2026-10-06 15:15 UTCEPSS rescoreEPSS 1.2% · 66th percentile
  25. 2026-10-05 17:41 UTCEPSS rescoreEPSS 1.2% · 66th percentile
  26. 2026-10-04 23:20 UTCEPSS rescoreEPSS 1.2% · 66th percentile
  27. 2026-10-03 14:23 UTCEPSS rescoreEPSS 1.2% · 66th percentile
  28. 2026-10-01 19:48 UTCEPSS rescoreEPSS 1.2% · 66th percentile
  29. 2026-09-30 16:58 UTCEchelonGraph re-scored
  30. 2026-09-30 15:01 UTCEPSS rescoreEPSS 1.2% · 66th percentile
  31. 2026-09-29 15:17 UTCEPSS rescoreEPSS 1.2% · 65th percentile
  32. 2026-09-28 13:49 UTCEPSS rescoreEPSS 1.2% · 65th percentile
  33. 2026-09-24 14:01 UTCEPSS rescoreEPSS 1.2% · 65th percentile
  34. 2026-09-23 13:46 UTCEPSS rescoreEPSS 1.2% · 65th percentile
  35. 2026-09-22 06:46 UTCOSV refresh
  36. 2026-09-20 20:14 UTCEPSS rescoreEPSS 1.2% · 65th percentile
  37. 2026-09-16 14:06 UTCEPSS rescoreEPSS 1.2% · 65th percentile
  38. 2026-09-16 05:11 UTCEPSS rescoreEPSS 1.2% · 65th percentile
  39. 2026-09-15 03:08 UTCEPSS rescoreEPSS 1.2% · 65th percentile
  40. 2026-09-13 16:45 UTCEPSS rescoreEPSS 1.2% · 65th percentile
  41. 2026-09-12 14:59 UTCEPSS rescoreEPSS 1.2% · 65th percentile
  42. 2026-09-11 14:51 UTCEPSS rescoreEPSS 1.2% · 65th percentile
  43. 2026-09-11 09:34 UTCEPSS rescoreEPSS 1.2% · 65th percentile
  44. 2026-09-08 21:58 UTCEPSS rescoreEPSS 1.2% · 65th percentile
  45. 2026-09-07 15:59 UTCEPSS rescoreEPSS 1.2% · 65th percentile
  46. 2026-09-06 13:46 UTCEPSS rescoreEPSS 1.2% · 65th percentile
  47. 2026-09-05 15:26 UTCEPSS rescoreEPSS 1.2% · 64th percentile
  48. 2026-09-04 13:58 UTCEPSS rescoreEPSS 1.2% · 65th percentile
  49. 2026-09-04 05:05 UTCEPSS rescoreEPSS 1.2% · 65th percentile
  50. 2026-09-03 04:29 UTCOSV refresh
  51. 2026-09-02 14:10 UTCEPSS rescoreEPSS 1.2% · 65th percentile
  52. 2026-09-01 13:52 UTCEPSS rescoreEPSS 1.2% · 65th percentile
  53. 2026-08-30 19:15 UTCEPSS rescoreEPSS 1.2% · 65th percentile
  54. 2026-08-30 01:20 UTCEPSS rescoreEPSS 1.2% · 64th percentile
  55. 2026-08-28 21:39 UTCEPSS rescoreEPSS 1.2% · 64th percentile
  56. 2026-08-27 14:23 UTCEPSS rescoreEPSS 1.2% · 64th percentile
  57. 2026-08-26 14:44 UTCEPSS rescoreEPSS 1.2% · 64th percentile
  58. 2026-08-25 13:47 UTCEPSS rescoreEPSS 1.2% · 64th percentile
  59. 2026-08-23 00:17 UTCEPSS rescoreEPSS 1.2% · 64th percentile
  60. 2026-08-21 23:47 UTCEPSS rescoreEPSS 1.2% · 64th percentile
  61. 2026-08-20 22:53 UTCEPSS rescoreEPSS 1.2% · 64th percentile
  62. 2026-08-19 17:02 UTCEPSS rescoreEPSS 1.2% · 64th percentile
  63. 2026-08-18 13:46 UTCEPSS rescoreEPSS 1.2% · 64th percentile
  64. 2026-08-17 13:45 UTCEPSS rescoreEPSS 1.2% · 64th percentile
  65. 2026-08-16 17:56 UTCOSV refresh
  66. 2026-08-16 14:54 UTCEPSS rescoreEPSS 1.2% · 64th percentile
  67. 2026-08-16 02:12 UTCEPSS rescoreEPSS 1.2% · 64th percentile
  68. 2026-08-15 01:28 UTCEPSS rescoreEPSS 1.2% · 64th percentile
  69. 2026-08-13 21:58 UTCEPSS rescoreEPSS 1.2% · 64th percentile
  70. 2026-08-12 13:49 UTCEPSS rescoreEPSS 1.2% · 64th percentile
  71. 2026-08-11 13:40 UTCEPSS rescoreEPSS 1.2% · 64th percentile
  72. 2026-08-09 13:45 UTCEPSS rescoreEPSS 1.2% · 64th percentile
  73. 2026-08-08 16:35 UTCEPSS rescoreEPSS 1.2% · 64th percentile

Frequently asked(5)

What is CVE-2024-23836?
CVE-2024-23836 is a high-severity vulnerability; its CVE record was published on February 26, 2024. Suricata is a network Intrusion Detection System, Intrusion Prevention System and Network Security Monitoring engine. Prior to versions 6.0.16 and 7.0.3, an attacker can craft traffic to cause Suricata to use far more CPU and memory for processing the traffic than needed, which can lead to extreme…
When was the CVE record for CVE-2024-23836 published?
The CVE record for CVE-2024-23836 was published on February 26, 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 December 19, 2024; the record at its source may have been updated since.
Is CVE-2024-23836 actively exploited?
CVE-2024-23836 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1.2% probability of exploitation in the next 30 days (67th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2024-23836?
CVE-2024-23836 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2024-23836?
A fix for CVE-2024-23836 is available: update to the fixed version the vendor names in its advisory.

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