CVE-2026-64832

HIGHPre-NVD 8.88.8—
EchelonGraph scoreMEDIUM confidence

Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2026-07-22. a secondary CVSS source baseline 8.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this week
8.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 8.8Exploit: None knownExposed: 0

A fix is available — apply it.

FFmpeg versions 4.4 through 8.1.2 contain a double-free vulnerability in the NVIDIA NVDEC hardware decoder within libavcodec/nvdec.c that allows attackers to trigger memory corruption by supplying a crafted video file. When no decoder surfaces remain, the ff_nvdec_start_frame_sep_ref error path frees memory via nvdec_fdd_priv_free while the calling layer subsequently frees the same frame description data, resulting in a double-free of the underlying decoder context in any FFmpeg-based application using NVDEC hardware-accelerated decoding.

CVSS v3
8.8
EG Score
8.8(medium)
EG Risk
40(Track)
EG Risk 40/100SSVC: 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
Severity88% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
27%
KEV
Not listed

Published

July 22, 2026

Last Modified

July 28, 2026

Advisory Details (3)

Auto-updated Jul 22, 2026
No patch confirmed yet.
generic

FFmpeg 4.4 - 8.1.2 Double-Free in NVDEC Hardware Decoder via nvdec.c | Advisories | VulnCheck

https://www.vulncheck.com/advisories/ffmpeg-double-free-in-nvdec-hardware-decoder-via-nvdec-c
generic

#23664 - avcodec/nvdec: don't double free the fdd-owned context on the sep_ref error path - FFmpeg/FFmpeg - FFmpeg Forgejo

https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/23664
generic

avcodec/nvdec: don't double free the fdd-owned context on the sep_ref error path · 4c6217477f - FFmpeg/FFmpeg - FFmpeg Forgejo

https://code.ffmpeg.org/FFmpeg/FFmpeg/commit/4c6217477fc64305055b37d9d1d0d76d30e37f97

Vendor Advisories for CVE-2026-64832(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
ubuntulibswscale9 (7:8.0.1-3ubuntu2+esm4) @ resolute2026-09-18ubuntu
ubuntulibswscale-ffmpeg3 (7:2.8.17-0ubuntu0.1+esm17) @ xenial2026-09-18ubuntu

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

(4 across 4 ecosystems)
Debian:11(1)
PackageVulnerable rangeFixed inDependents
ffmpeg7:4.3.2-0+deb11u2 ... 7:8.1.2-2 (91 versions)——
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 ... 7:8.0.1-3 (8 versions)7:8.1-1—

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 24× in last 7d / 100× 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 222 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-64832?
CVE-2026-64832 is a high vulnerability published on July 22, 2026. FFmpeg versions 4.4 through 8.1.2 contain a double-free vulnerability in the NVIDIA NVDEC hardware decoder within libavcodec/nvdec.c that allows attackers to trigger memory corruption by supplying a crafted video file. When no decoder surfaces remain, the ffnvdecstartframesepref error path frees…
When was CVE-2026-64832 disclosed?
CVE-2026-64832 was first published in the National Vulnerability Database on July 22, 2026, with the most recent update on July 28, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-64832 actively exploited?
CVE-2026-64832 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 73.1% of all scored CVEs.
What is the CVSS score of CVE-2026-64832?
CVE-2026-64832 has a CVSS v3 base score of 8.8 (NVD).
How do I remediate CVE-2026-64832?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-64832, 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-2026-64832

Explore →

Is Your Infrastructure Affected by CVE-2026-64832?

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

Start Free Scan →Browse All CVEs