CVE-2026-75141

HIGHPre-NVD 7.87.8—
EchelonGraph scoreMEDIUM confidence

Score 7.8 from GitHub Security Advisory (severity: HIGH) published 2026-08-19. a secondary CVSS source baseline 7.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 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

A fix is available — apply it.

FFmpeg before commit acf5d7c contains a heap buffer overflow in the hvcC box writer. When writing an HEVC configuration record with more NAL units of a single type than the count field can represent, the NAL unit count overflows, causing a heap buffer overflow. A crafted HEVC input file triggers the overflow during muxing.

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
3%
KEV
Not listed

Published

August 19, 2026

Last Modified

August 31, 2026

Advisory Details (3)

Auto-updated Aug 19, 2026
No patch confirmed yet.
generic

FFmpeg Heap Buffer Overflow in hvcC Box Writer via HEVC Muxing | Advisories | VulnCheck

https://www.vulncheck.com/advisories/ffmpeg-heap-buffer-overflow-in-hvcc-box-writer-via-hevc-muxing
generic

avformat/hevc: reject hvcC NAL arrays that overflow the 16-bit count · acf5d7cdc1 - FFmpeg/FFmpeg - FFmpeg Forgejo

https://code.ffmpeg.org/FFmpeg/FFmpeg/commit/acf5d7cdc1f9ae8752c23e1ea8d7f355ed780781
generic

#24088 - avformat/hevc: reject hvcC NAL arrays that overflow the 16-bit count - FFmpeg/FFmpeg - FFmpeg Forgejo

https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/24088

Vendor Advisories for CVE-2026-75141(1)

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

Patch Availability(2)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulibswscale7 (7:6.1.1-3ubuntu5+esm13) @ noble2026-09-20ubuntu
ubuntulibswscale9 (7:8.0.1-3ubuntu2+esm4) @ resolute2026-09-20ubuntu

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

(3 across 3 ecosystems)
Debian:12(1)
PackageVulnerable rangeFixed inDependents
ffmpeg7:5.1.3-1 ... 7:9.0.1-1 (59 versions)——
Debian:13(1)
PackageVulnerable rangeFixed inDependents
ffmpeg7:7.1.1-1 ... 7:9.0.1-1 (23 versions)——
Debian:14(1)
PackageVulnerable rangeFixed inDependents
ffmpeg7:7.1.1-1 ... 7:9.0.1-1 (19 versions)——

Weakness Classification(1)

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

All Vendor Advisories

(2)

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 34× in last 7d / 128× 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 142 total refreshes for this CVE.

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

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2026-75141?
CVE-2026-75141 is a high vulnerability published on August 19, 2026. FFmpeg before commit acf5d7c contains a heap buffer overflow in the hvcC box writer. When writing an HEVC configuration record with more NAL units of a single type than the count field can represent, the NAL unit count overflows, causing a heap buffer overflow. A crafted HEVC input file triggers…
When was CVE-2026-75141 disclosed?
CVE-2026-75141 was first published in the National Vulnerability Database on August 19, 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-2026-75141 actively exploited?
CVE-2026-75141 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 96.5% of all scored CVEs.
What is the CVSS score of CVE-2026-75141?
CVE-2026-75141 has a CVSS v3 base score of 7.8 (NVD).
How do I remediate CVE-2026-75141?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-75141, 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

See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-75141

Explore →

Is Your Infrastructure Affected by CVE-2026-75141?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs