CVE-2024-11705

CRITICALNVD 9.19.1
EchelonGraph scoreMEDIUM confidence

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

Score 9.1 from GitHub Security Advisory (severity: CRITICAL) published 2024-11-26. NVD baseline CVSS 9.1; sources differ by 0.0.

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

Also known asEUVD-2024-33969 (ENISA EUVD) · GHSA-h43c-gg33-qj9g (GitHub Security Advisories)Source: ENISA EUVD

9.1EG
EchelonGraph verdictPlan a fixRemediate within your standard update timelines at low or medium mission impact and sooner than that at high (the SSVC decision on this page).
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.7%CVSS: 9.1Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

NSC_DeriveKey inadvertently assumed that the phKey parameter is always non-NULL. When it was passed as NULL, a segmentation fault (SEGV) occurred, leading to crashes. This behavior conflicted with the PKCS#11 v3.0 specification, which allows phKey to be NULL for certain mechanisms. This vulnerability affects Firefox < 133 and Thunderbird < 133.

CVSS v3
9.1
EG Score
9.1CRITICALmedium confidence
EG Risk
56
EG Risk 56/100

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)
Severity91% × 45%
Impact severity (EG Severity): CVSS 9.1 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation0.7% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability100% × 15%
CISA's SSVC Automatable value: yes (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Attend at high (mission-essential systems).
Exploitation none (CISA Vulnrichment) · Automatable yes (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 at low or medium mission impact and sooner than that at high.
EPSS PROB
0.7%
EPSS %ILE
52nd
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 (9.1): severity, escalated by confirmed exploitation. This CVE's 9.1 is its impact severity (EG Severity), not escalated.

EG Severity
9.1 CRITICALCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
EG Likelihood
0.7% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-11-12). 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; Attend at high (mission-essential systems).CISA BOD 26-04: 14 days if the affected system is publicly exposed; 60 days 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; Attend at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.

Exploitation none (CISA Vulnrichment) · Automatable yes (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)14 days if the affected system is publicly exposed; 60 days if it is not.

The score's inputs: In CISA KEV no (CISA's KEV catalog) · Automatable yes (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

November 26, 2024

Last Modified

June 24, 2025

Advisory Details (3)

Auto-updated Aug 1, 2026
Patch available.
Web page

Security Vulnerabilities fixed in Thunderbird 133 — Mozilla

https://www.mozilla.org/security/advisories/mfsa2024-67/
Web page

Security Vulnerabilities fixed in Firefox 133 — Mozilla

https://www.mozilla.org/security/advisories/mfsa2024-63/
Web page

1921768 - (CVE-2024-11705) SEGV in NSC_DeriveKey

https://bugzilla.mozilla.org/show_bug.cgi?id=1921768

Patch Availability(1)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
ubuntufirefox-mozsymbols (133.0+build2-0ubuntu0.20.04.1) @ focal2026-11-03ubuntu

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.

Weakness Classification(1)

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

All Vendor Advisories

(1)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 13× in last 7d / 70× 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 292 rows on record for this CVE.

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. None are among the latest 100 rows. The 192 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-11-12 22:42 UTCEchelonGraph re-scored
  2. 2026-11-12 22:42 UTCGHSA enrichmentGHSA-h43c-gg33-qj9g · GitHub severity CRITICAL · GitHub CVSS 9.1
  3. 2026-11-12 16:30 UTCEPSS rescoreEPSS 0.7% · 52nd percentile
  4. 2026-11-11 20:48 UTCEchelonGraph re-scored
  5. 2026-11-11 20:48 UTCGHSA enrichmentGHSA-h43c-gg33-qj9g · GitHub severity CRITICAL · GitHub CVSS 9.1
  6. 2026-11-11 16:34 UTCEPSS rescoreEPSS 0.7% · 52nd percentile
  7. 2026-11-10 18:57 UTCEchelonGraph re-scored
  8. 2026-11-10 18:57 UTCGHSA enrichmentGHSA-h43c-gg33-qj9g · GitHub severity CRITICAL · GitHub CVSS 9.1
  9. 2026-11-10 16:38 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  10. 2026-11-09 17:19 UTCEchelonGraph re-scored
  11. 2026-11-09 17:19 UTCGHSA enrichmentGHSA-h43c-gg33-qj9g · GitHub severity CRITICAL · GitHub CVSS 9.1
  12. 2026-11-09 16:30 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  13. 2026-11-08 16:35 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  14. 2026-11-08 15:41 UTCEchelonGraph re-scored
  15. 2026-11-08 15:41 UTCGHSA enrichmentGHSA-h43c-gg33-qj9g · GitHub severity CRITICAL · GitHub CVSS 9.1
  16. 2026-11-07 16:35 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  17. 2026-11-07 14:04 UTCEchelonGraph re-scored
  18. 2026-11-07 14:04 UTCGHSA enrichmentGHSA-h43c-gg33-qj9g · GitHub severity CRITICAL · GitHub CVSS 9.1
  19. 2026-11-06 16:31 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  20. 2026-11-06 12:25 UTCEchelonGraph re-scored
  21. 2026-11-06 12:25 UTCGHSA enrichmentGHSA-h43c-gg33-qj9g · GitHub severity CRITICAL · GitHub CVSS 9.1
  22. 2026-11-05 16:33 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  23. 2026-11-05 10:47 UTCEchelonGraph re-scored
  24. 2026-11-05 10:47 UTCGHSA enrichmentGHSA-h43c-gg33-qj9g · GitHub severity CRITICAL · GitHub CVSS 9.1
  25. 2026-11-04 16:32 UTCEPSS rescoreEPSS 0.7% · 51st percentile
Show 75 more
  1. 2026-11-04 09:09 UTCEchelonGraph re-scored
  2. 2026-11-04 09:09 UTCGHSA enrichmentGHSA-h43c-gg33-qj9g · GitHub severity CRITICAL · GitHub CVSS 9.1
  3. 2026-11-03 16:41 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  4. 2026-11-03 07:30 UTCEchelonGraph re-scored
  5. 2026-11-03 07:30 UTCVendor advisory
  6. 2026-11-03 07:30 UTCGHSA enrichmentGHSA-h43c-gg33-qj9g · GitHub severity CRITICAL · GitHub CVSS 9.1
  7. 2026-11-02 16:40 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  8. 2026-11-02 05:52 UTCEchelonGraph re-scored
  9. 2026-11-02 05:52 UTCVendor advisory
  10. 2026-11-02 05:52 UTCGHSA enrichmentGHSA-h43c-gg33-qj9g · GitHub severity CRITICAL · GitHub CVSS 9.1
  11. 2026-11-01 16:31 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  12. 2026-11-01 04:13 UTCEchelonGraph re-scored
  13. 2026-11-01 04:13 UTCGHSA enrichmentGHSA-h43c-gg33-qj9g · GitHub severity CRITICAL · GitHub CVSS 9.1
  14. 2026-10-31 16:30 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  15. 2026-10-31 02:30 UTCEchelonGraph re-scored
  16. 2026-10-31 02:30 UTCVendor advisory
  17. 2026-10-31 02:30 UTCGHSA enrichmentGHSA-h43c-gg33-qj9g · GitHub severity CRITICAL · GitHub CVSS 9.1
  18. 2026-10-30 16:31 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  19. 2026-10-30 00:52 UTCEchelonGraph re-scored
  20. 2026-10-30 00:52 UTCVendor advisory
  21. 2026-10-30 00:52 UTCGHSA enrichmentGHSA-h43c-gg33-qj9g · GitHub severity CRITICAL · GitHub CVSS 9.1
  22. 2026-10-29 16:30 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  23. 2026-10-28 23:15 UTCEchelonGraph re-scored
  24. 2026-10-28 23:14 UTCGHSA enrichmentGHSA-h43c-gg33-qj9g · GitHub severity CRITICAL · GitHub CVSS 9.1
  25. 2026-10-28 16:29 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  26. 2026-10-27 21:34 UTCEchelonGraph re-scored
  27. 2026-10-27 21:34 UTCVendor advisory
  28. 2026-10-27 21:34 UTCGHSA enrichmentGHSA-h43c-gg33-qj9g · GitHub severity CRITICAL · GitHub CVSS 9.1
  29. 2026-10-27 16:29 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  30. 2026-10-26 19:56 UTCEchelonGraph re-scored
  31. 2026-10-26 19:56 UTCVendor advisory
  32. 2026-10-26 19:56 UTCGHSA enrichmentGHSA-h43c-gg33-qj9g · GitHub severity CRITICAL · GitHub CVSS 9.1
  33. 2026-10-26 16:29 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  34. 2026-10-25 16:30 UTCEPSS rescoreEPSS 0.7% · 51st percentile
  35. 2026-10-25 16:11 UTCEchelonGraph re-scored
  36. 2026-10-25 16:11 UTCVendor advisory
  37. 2026-10-25 16:11 UTCGHSA enrichmentGHSA-h43c-gg33-qj9g · GitHub severity CRITICAL · GitHub CVSS 9.1
  38. 2026-10-24 16:30 UTCEPSS rescoreEPSS 0.7% · 50th percentile
  39. 2026-10-24 14:32 UTCEchelonGraph re-scored
  40. 2026-10-24 14:32 UTCVendor advisory
  41. 2026-10-24 14:32 UTCGHSA enrichmentGHSA-h43c-gg33-qj9g · GitHub severity CRITICAL · GitHub CVSS 9.1
  42. 2026-10-23 16:29 UTCEPSS rescoreEPSS 0.7% · 50th percentile
  43. 2026-10-23 12:55 UTCEchelonGraph re-scored
  44. 2026-10-23 12:54 UTCGHSA enrichmentGHSA-h43c-gg33-qj9g · GitHub severity CRITICAL · GitHub CVSS 9.1
  45. 2026-10-22 16:31 UTCEPSS rescoreEPSS 0.7% · 50th percentile
  46. 2026-10-22 11:15 UTCEchelonGraph re-scored
  47. 2026-10-22 11:15 UTCVendor advisory
  48. 2026-10-22 11:15 UTCGHSA enrichmentGHSA-h43c-gg33-qj9g · GitHub severity CRITICAL · GitHub CVSS 9.1
  49. 2026-10-21 16:29 UTCEPSS rescoreEPSS 0.7% · 50th percentile
  50. 2026-10-21 09:37 UTCEchelonGraph re-scored
  51. 2026-10-21 09:37 UTCVendor advisory
  52. 2026-10-21 09:37 UTCGHSA enrichmentGHSA-h43c-gg33-qj9g · GitHub severity CRITICAL · GitHub CVSS 9.1
  53. 2026-10-20 16:30 UTCEPSS rescoreEPSS 0.7% · 50th percentile
  54. 2026-10-20 07:59 UTCEchelonGraph re-scored
  55. 2026-10-20 07:59 UTCVendor advisory
  56. 2026-10-20 07:59 UTCGHSA enrichmentGHSA-h43c-gg33-qj9g · GitHub severity CRITICAL · GitHub CVSS 9.1
  57. 2026-10-19 16:29 UTCEPSS rescoreEPSS 0.7% · 50th percentile
  58. 2026-10-19 06:21 UTCEchelonGraph re-scored
  59. 2026-10-19 06:21 UTCVendor advisory
  60. 2026-10-19 06:21 UTCGHSA enrichmentGHSA-h43c-gg33-qj9g · GitHub severity CRITICAL · GitHub CVSS 9.1
  61. 2026-10-18 16:29 UTCEPSS rescoreEPSS 0.7% · 50th percentile
  62. 2026-10-18 04:43 UTCEchelonGraph re-scored
  63. 2026-10-18 04:42 UTCGHSA enrichmentGHSA-h43c-gg33-qj9g · GitHub severity CRITICAL · GitHub CVSS 9.1
  64. 2026-10-17 16:30 UTCEPSS rescoreEPSS 0.7% · 50th percentile
  65. 2026-10-17 03:02 UTCEchelonGraph re-scored
  66. 2026-10-17 03:02 UTCGHSA enrichmentGHSA-h43c-gg33-qj9g · GitHub severity CRITICAL · GitHub CVSS 9.1
  67. 2026-10-16 16:36 UTCEPSS rescoreEPSS 0.7% · 50th percentile
  68. 2026-10-16 01:23 UTCEchelonGraph re-scored
  69. 2026-10-16 01:22 UTCGHSA enrichmentGHSA-h43c-gg33-qj9g · GitHub severity CRITICAL · GitHub CVSS 9.1
  70. 2026-10-15 16:29 UTCEPSS rescoreEPSS 0.7% · 50th percentile
  71. 2026-10-14 20:51 UTCEchelonGraph re-scored
  72. 2026-10-14 20:51 UTCGHSA enrichmentGHSA-h43c-gg33-qj9g · GitHub severity CRITICAL · GitHub CVSS 9.1
  73. 2026-10-14 16:30 UTCEPSS rescoreEPSS 0.7% · 50th percentile
  74. 2026-10-13 16:44 UTCEchelonGraph re-scored
  75. 2026-10-13 16:44 UTCVendor advisory

Frequently asked(5)

What is CVE-2024-11705?
CVE-2024-11705 is a critical-severity vulnerability; its CVE record was published on November 26, 2024. NSC_DeriveKey inadvertently assumed that the phKey parameter is always non-NULL. When it was passed as NULL, a segmentation fault (SEGV) occurred, leading to crashes. This behavior conflicted with the PKCS#11 v3.0 specification, which allows phKey to be NULL for certain mechanisms. This…
When was the CVE record for CVE-2024-11705 published?
The CVE record for CVE-2024-11705 was published on November 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 June 24, 2025; the record at its source may have been updated since.
Is CVE-2024-11705 actively exploited?
CVE-2024-11705 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.7% probability of exploitation in the next 30 days (52nd percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2024-11705?
CVE-2024-11705 has a CVSS v3 base score of 9.1 (NVD).
How do I remediate CVE-2024-11705?
A fix for CVE-2024-11705 is available: update to the fixed version the vendor names in its advisory.

Dependency Blast Radius

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