CVE-2026-70640

HIGHPre-NVD 7.07.0—
EchelonGraph scoreMEDIUM confidence

Score 7.0 from GitHub Security Advisory (severity: HIGH) published 2026-08-07. a secondary CVSS source baseline 7.0; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
7.0EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.0Exploit: 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 race condition use-after-free vulnerability in the LLaMA-Android JNI wrapper where bench_1model() and free_1context() lack synchronization, allowing Thread A to operate on freed memory while Thread B concurrently frees the llama_context. Attackers can exploit this by performing heap spray with attacker-controlled data containing a fake vtable to hijack the vtable pointer at offset +0x30, causing llama_batch_allocr::clear() to dereference arbitrary memory and achieve remote code execution.

CVSS v3
7.0
EG Score
7.0(medium)
EG Risk
32(Track)
EG Risk 32/100SSVC: 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
Severity70% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
6%
KEV
Not listed

Published

August 6, 2026

Last Modified

August 31, 2026

Advisory Details (3)

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

b7446

Patch available: ggml-org/llama.cpp b7446

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

Vendor Advisories for CVE-2026-70640(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 22× in last 7d / 104× 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 172 total refreshes for this CVE.

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

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-70640?
CVE-2026-70640 is a high vulnerability published on August 6, 2026. llama.cpp builds b1886 through b7445 contain a race condition use-after-free vulnerability in the LLaMA-Android JNI wrapper where bench1model() and free1context() lack synchronization, allowing Thread A to operate on freed memory while Thread B concurrently frees the llamacontext. Attackers can…
When was CVE-2026-70640 disclosed?
CVE-2026-70640 was first published in the National Vulnerability Database on August 6, 2026, with the most recent update on August 31, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-70640 actively exploited?
CVE-2026-70640 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 94.4% of all scored CVEs.
What is the CVSS score of CVE-2026-70640?
CVE-2026-70640 has a CVSS v3 base score of 7.0 (NVD).
How do I remediate CVE-2026-70640?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-70640, 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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