CVE-2026-43622

HIGHPre-NVD 7.87.8—
EchelonGraph scoreMEDIUM confidence

Score 7.8 from GitHub Security Advisory (severity: HIGH) published 2026-08-06. a secondary CVSS source baseline 7.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
7.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.8Exploit: None knownExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

llama.cpp builds b1886 through b7445 contain a double free vulnerability in the LLaMA-Android JNI wrapper where new_1batch() allocates memory using malloc() while free_1batch() deallocates it using the C++ delete operator, causing heap metadata corruption. Attackers can trigger this memory management mismatch to cause denial of service through process crashes or potentially achieve arbitrary code execution depending on allocator state.

CVSS v3
7.8
EG Score
7.8(medium)
EG Risk
35(Track)
EG Risk 35/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity78% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
5%
KEV
Not listed

Published

August 6, 2026

Last Modified

September 4, 2026

Advisory Details (3)

Auto-updated Aug 6, 2026
Patch available. Sources: github_commit, github_release.
github_release Patch Available

b7446

Patch available: ggml-org/llama.cpp b7446

https://github.com/ggml-org/llama.cpp/releases/tag/b7446
github_commit

commit 5c0d18881e0e (ggml-org/llama.cpp)

Fix landed in ggml-org/llama.cpp commit 5c0d18881e0e — awaiting tagged release

https://github.com/ggml-org/llama.cpp/commit/5c0d18881e0e9794c96b2602736b758bac9d9388
generic

GitHub - Vladimir-tokarev-cyera/llama-cpp-security-patches: Security patches for unpatched llama.cpp vulnerabilities (CVE-2026-43626 through CVE-2026-43632) — Cyera Research · GitHub

https://github.com/Vladimir-tokarev-cyera/llama-cpp-security-patches

Vendor Advisories for CVE-2026-43622(1)

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

Affected Packages

(1 across 1 ecosystem)
Debian:14(1)
PackageVulnerable rangeFixed inDependents
llama.cpp5151+dfsg-1~exp2 ... 6641+dfsg-3 (19 versions)7593+dfsg-1—

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 25× in last 7d / 105× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 167 total refreshes for this CVE.

  1. 2026-09-19 03:12 UTCEG score recompute
  2. 2026-09-19 03:12 UTCGHSA enrichment
  3. 2026-09-18 19:28 UTCEPSS rescore
  4. 2026-09-18 14:45 UTCGHSA enrichment
  5. 2026-09-18 02:39 UTCEG score recompute
  6. 2026-09-18 02:39 UTCGHSA enrichment
  7. 2026-09-17 19:31 UTCEPSS rescore
  8. 2026-09-17 15:15 UTCGHSA enrichment
  9. 2026-09-17 00:58 UTCEG score recompute
  10. 2026-09-17 00:58 UTCGHSA enrichment
  11. 2026-09-16 14:08 UTCEPSS rescore
  12. 2026-09-16 05:15 UTCEPSS rescore
  13. 2026-09-16 03:00 UTCGHSA enrichment
  14. 2026-09-15 14:27 UTCEG score recompute
  15. 2026-09-15 14:27 UTCGHSA enrichment
  16. 2026-09-15 01:34 UTCGHSA enrichment
  17. 2026-09-14 14:10 UTCGHSA enrichment
  18. 2026-09-14 02:46 UTCEG score recompute
  19. 2026-09-14 02:46 UTCGHSA enrichment
  20. 2026-09-13 16:47 UTCEPSS rescore
  21. 2026-09-13 15:21 UTCGHSA enrichment
  22. 2026-09-13 03:57 UTCGHSA enrichment
  23. 2026-09-12 16:33 UTCEG score recompute
  24. 2026-09-12 16:33 UTCGHSA enrichment
  25. 2026-09-12 15:01 UTCEPSS rescore
Show 75 more
  1. 2026-09-12 05:09 UTCGHSA enrichment
  2. 2026-09-11 17:45 UTCEG score recompute
  3. 2026-09-11 17:45 UTCGHSA enrichment
  4. 2026-09-11 14:53 UTCEPSS rescore
  5. 2026-09-11 09:37 UTCEPSS rescore
  6. 2026-09-11 05:51 UTCGHSA enrichment
  7. 2026-09-10 17:58 UTCEG score recompute
  8. 2026-09-10 17:58 UTCGHSA enrichment
  9. 2026-09-10 09:34 UTCEPSS rescore
  10. 2026-09-10 06:34 UTCGHSA enrichment
  11. 2026-09-09 18:53 UTCGHSA enrichment
  12. 2026-09-09 06:09 UTCGHSA enrichment
  13. 2026-09-08 07:42 UTCGHSA enrichment
  14. 2026-09-07 17:58 UTCEG score recompute
  15. 2026-09-07 17:58 UTCGHSA enrichment
  16. 2026-09-07 16:01 UTCEPSS rescore
  17. 2026-09-06 16:39 UTCEG score recompute
  18. 2026-09-06 16:39 UTCGHSA enrichment
  19. 2026-09-06 13:47 UTCEPSS rescore
  20. 2026-09-06 05:15 UTCEG score recompute
  21. 2026-09-06 05:15 UTCGHSA enrichment
  22. 2026-09-05 17:50 UTCEG score recompute
  23. 2026-09-05 17:49 UTCGHSA enrichment
  24. 2026-09-05 05:45 UTCGHSA enrichment
  25. 2026-09-04 18:21 UTCEG score recompute
  26. 2026-09-04 18:21 UTCGHSA enrichment
  27. 2026-09-04 09:12 UTCEG score recompute
  28. 2026-09-04 09:12 UTCGHSA enrichment
  29. 2026-09-04 05:06 UTCEPSS rescore
  30. 2026-09-03 17:43 UTCGHSA enrichment
  31. 2026-09-03 06:15 UTCEG score recompute
  32. 2026-09-03 06:15 UTCGHSA enrichment
  33. 2026-09-02 14:12 UTCEPSS rescore
  34. 2026-09-02 06:56 UTCGHSA enrichment
  35. 2026-09-01 18:14 UTCEG score recompute
  36. 2026-09-01 18:14 UTCGHSA enrichment
  37. 2026-09-01 13:54 UTCEPSS rescore
  38. 2026-08-31 20:45 UTCEG score recompute
  39. 2026-08-31 20:45 UTCGHSA enrichment
  40. 2026-08-31 10:01 UTCGHSA enrichment
  41. 2026-08-30 21:08 UTCEG score recompute
  42. 2026-08-30 21:08 UTCGHSA enrichment
  43. 2026-08-30 19:17 UTCEPSS rescore
  44. 2026-08-30 09:44 UTCEG score recompute
  45. 2026-08-30 09:44 UTCGHSA enrichment
  46. 2026-08-30 01:22 UTCEPSS rescore
  47. 2026-08-29 22:04 UTCGHSA enrichment
  48. 2026-08-29 10:41 UTCEG score recompute
  49. 2026-08-29 10:40 UTCGHSA enrichment
  50. 2026-08-28 21:41 UTCEPSS rescore
  51. 2026-08-28 13:45 UTCGHSA enrichment
  52. 2026-08-28 01:32 UTCEG score recompute
  53. 2026-08-28 01:32 UTCGHSA enrichment
  54. 2026-08-27 14:25 UTCEPSS rescore
  55. 2026-08-27 14:08 UTCGHSA enrichment
  56. 2026-08-27 02:44 UTCGHSA enrichment
  57. 2026-08-26 15:20 UTCEG score recompute
  58. 2026-08-26 15:20 UTCGHSA enrichment
  59. 2026-08-26 14:46 UTCEPSS rescore
  60. 2026-08-26 03:56 UTCGHSA enrichment
  61. 2026-08-25 16:32 UTCEG score recompute
  62. 2026-08-25 16:32 UTCGHSA enrichment
  63. 2026-08-25 13:49 UTCEPSS rescore
  64. 2026-08-25 04:59 UTCGHSA enrichment
  65. 2026-08-24 17:35 UTCEG score recompute
  66. 2026-08-24 17:35 UTCGHSA enrichment
  67. 2026-08-24 05:37 UTCGHSA enrichment
  68. 2026-08-23 18:13 UTCGHSA enrichment
  69. 2026-08-23 06:49 UTCEG score recompute
  70. 2026-08-23 06:49 UTCGHSA enrichment
  71. 2026-08-23 00:19 UTCEPSS rescore
  72. 2026-08-22 19:26 UTCGHSA enrichment
  73. 2026-08-22 08:02 UTCEG score recompute
  74. 2026-08-22 08:02 UTCGHSA enrichment
  75. 2026-08-21 23:49 UTCEPSS rescore

Frequently asked(5)

What is CVE-2026-43622?
CVE-2026-43622 is a high vulnerability published on August 6, 2026. llama.cpp builds b1886 through b7445 contain a double free vulnerability in the LLaMA-Android JNI wrapper where new1batch() allocates memory using malloc() while free1batch() deallocates it using the C++ delete operator, causing heap metadata corruption. Attackers can trigger this memory management…
When was CVE-2026-43622 disclosed?
CVE-2026-43622 was first published in the National Vulnerability Database on August 6, 2026, with the most recent update on September 4, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-43622 actively exploited?
CVE-2026-43622 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 94.8% of all scored CVEs.
What is the CVSS score of CVE-2026-43622?
CVE-2026-43622 has a CVSS v3 base score of 7.8 (NVD).
How do I remediate CVE-2026-43622?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-43622, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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