CVE-2026-65705

HIGHPre-NVD 7.87.8—
EchelonGraph scoreMEDIUM confidence

Score 7.8 from GitHub Security Advisory (severity: HIGH) published 2026-07-23. 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 versions 3.4 through 8.1.2 contain an out-of-bounds write vulnerability in the vf_floodfill video filter that allows attackers to corrupt heap memory by supplying a dynamically sized video stream with filtergraph reinitialization disabled via -reinit_filter 0. When config_input() allocates the points traversal stack based on initial frame dimensions and a subsequent larger frame is processed, filter_frame() performs flood-fill neighbor pushes beyond the original allocation boundary, resulting in heap corruption and process crash with potential for code execution depending on heap layout and process hardening.

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

July 23, 2026

Last Modified

August 7, 2026

Advisory Details (3)

Auto-updated Jul 23, 2026
No patch confirmed yet.
generic

FFmpeg 3.4 - 8.1.2 vf_floodfill Out-of-Bounds Write via filter_frame() | Advisories | VulnCheck

https://www.vulncheck.com/advisories/ffmpeg-vf-floodfill-out-of-bounds-write-via-filter-frame
generic

avfilter/vf_floodfill: remove unneeded variables · f186c50cf5 - FFmpeg/FFmpeg - FFmpeg Forgejo

https://code.ffmpeg.org/FFmpeg/FFmpeg/commit/f186c50cf53aec20e9a29059cb22ca3f2d59201c
generic

#23780 - avfilter/vf_floodfill: size the point stack for the current frame - FFmpeg/FFmpeg - FFmpeg Forgejo

https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/23780

Vendor Advisories for CVE-2026-65705(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
ubuntulibswscale-ffmpeg3 (7:2.8.17-0ubuntu0.1+esm17) @ xenial2026-09-18ubuntu
ubuntulibswscale9 (7:8.0.1-3ubuntu2+esm4) @ resolute2026-09-18ubuntu

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 ... 7:9.0.1-1 (19 versions)——

Weakness Classification(2)

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 23× in last 7d / 98× 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 208 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-65705?
CVE-2026-65705 is a high vulnerability published on July 23, 2026. FFmpeg versions 3.4 through 8.1.2 contain an out-of-bounds write vulnerability in the vffloodfill video filter that allows attackers to corrupt heap memory by supplying a dynamically sized video stream with filtergraph reinitialization disabled via -reinitfilter 0. When configinput() allocates the…
When was CVE-2026-65705 disclosed?
CVE-2026-65705 was first published in the National Vulnerability Database on July 23, 2026, with the most recent update on August 7, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-65705 actively exploited?
CVE-2026-65705 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 97.5% of all scored CVEs.
What is the CVSS score of CVE-2026-65705?
CVE-2026-65705 has a CVSS v3 base score of 7.8 (NVD).
How do I remediate CVE-2026-65705?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-65705, 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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