CVE-2026-75144

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 1cdeb3c contains a heap buffer overflow vulnerability in the VC-2/Dirac RTP packetizer (libavformat/rtpenc_vc2hq.c) that allows attackers to trigger memory corruption by supplying a crafted Dirac data unit. The packetizer copies an input-derived data unit or fragment size into a fixed-size buffer without an upper bound check, causing a heap buffer overflow when the crafted input is packetized for RTP output.

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 VC-2/Dirac RTP Packetizer | Advisories | VulnCheck

https://www.vulncheck.com/advisories/ffmpeg-heap-buffer-overflow-in-vc-2-dirac-rtp-packetizer
generic

avformat/rtpenc_vc2hq: reject data units larger than the RTP payload buffer · 1cdeb3c4e7 - FFmpeg/FFmpeg - FFmpeg Forgejo

https://code.ffmpeg.org/FFmpeg/FFmpeg/commit/1cdeb3c4e7f1f8566d846b9b451e01c376398818
generic

#24091 - avformat/rtpenc_vc2hq: reject data units larger than the RTP payload buffer - FFmpeg/FFmpeg - FFmpeg Forgejo

https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/24091

Vendor Advisories for CVE-2026-75144(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
ubuntulibswscale4 (7:3.4.11-0ubuntu0.1+esm15) @ bionic2026-09-20ubuntu
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 42× in last 7d / 146× 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 163 total refreshes for this CVE.

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

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2026-75144?
CVE-2026-75144 is a high vulnerability published on August 19, 2026. FFmpeg before commit 1cdeb3c contains a heap buffer overflow vulnerability in the VC-2/Dirac RTP packetizer (libavformat/rtpenc_vc2hq.c) that allows attackers to trigger memory corruption by supplying a crafted Dirac data unit. The packetizer copies an input-derived data unit or fragment size into…
When was CVE-2026-75144 disclosed?
CVE-2026-75144 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-2026-75144 actively exploited?
CVE-2026-75144 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-2026-75144?
CVE-2026-75144 has a CVSS v3 base score of 7.8 (NVD).
How do I remediate CVE-2026-75144?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-75144, 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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