CVE-2026-73434

HIGHPre-NVD 6.17.1▲
EchelonGraph scoreHIGH confidence

Score 7.1 from GitHub Security Advisory (severity: HIGH) published 2026-08-12. a secondary CVSS source baseline 6.1; sources differ by 1.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — Patch released this week
7.1EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 6.1Exploit: None knownExposed: 0

A fix is available — apply it.

A flaw was found in GStreamer gst-plugins-good (avidemux). In gst_avi_demux_riff_parse_vprp(), the number of available gst_riff_vprp_video_field_desc entries is calculated by dividing the remaining buffer size by the attacker-controlled vprp->fields value, rather than by sizeof(gst_riff_vprp_video_field_desc). This can cause the parser to treat more field descriptors as available than fit in the input buffer, resulting in out-of-bounds reads. Processing a crafted AVI via playbin/decodebin can crash the application (denial of service). Fixed upstream in gst-plugins-good 1.28.6 (GStreamer-SA-2026-0072).

CVSS v3
6.1
EG Score
7.1(high)
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
Severity71% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
3%
KEV
Not listed

Published

August 12, 2026

Last Modified

August 19, 2026

Advisory Details (4)

Auto-updated Aug 12, 2026
Patch available. Sources: redhat.
generic

GStreamer Security Advisory

https://gstreamer.freedesktop.org/security/sa-2026-0072.html
generic

avidemux: Make sure enough data is available when parsing FUJIFILM strd and various other fixes (!12231) · Merge requests · GStreamer / gstreamer · GitLab

https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/12231
redhat

2514807 – (CVE-2026-73434) CVE-2026-73434 gstreamer1-plugins-good: gstreamer: out-of-bounds read in avidemux vprp video field descriptor parsing

https://bugzilla.redhat.com/show_bug.cgi?id=2514807
redhat Patch Available

CVE-2026-73434 - Red Hat Customer Portal

Affected: Red Hat Enterprise Linux 8 or OpenShift Container Platform 4, is affected by this vulnerability and a fix may be released to a

https://access.redhat.com/security/cve/CVE-2026-73434

Vendor Advisories for CVE-2026-73434(4)

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

Patch Availability(3)

Vendor / EcosystemFixed in / PatchReleasedSource
redhatgstreamer1-plugins-good-0:1.16.1-7.el8_10.32026-08-19redhat
redhatgstreamer1-plugins-good-0:1.26.7-2.el10_2.52026-08-17redhat
redhatgstreamer1-plugins-good-0:1.22.12-7.el9_8.42026-08-17redhat

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.

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 49× in last 7d / 66× 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.

  1. 2026-08-20 22:56 UTCEPSS rescore
  2. 2026-08-20 21:32 UTCVendor advisory
  3. 2026-08-20 21:32 UTCGHSA enrichment
  4. 2026-08-20 09:26 UTCVendor advisory
  5. 2026-08-20 09:26 UTCGHSA enrichment
  6. 2026-08-19 21:20 UTCEG score recompute
  7. 2026-08-19 21:20 UTCVendor advisory
  8. 2026-08-19 21:20 UTCGHSA enrichment
  9. 2026-08-19 21:05 UTCEG score recompute
  10. 2026-08-19 21:05 UTCVendor advisory
  11. 2026-08-19 21:05 UTCGHSA enrichment
  12. 2026-08-19 20:13 UTCEG score recompute
  13. 2026-08-19 20:13 UTCVendor advisory
  14. 2026-08-19 20:13 UTCGHSA enrichment
  15. 2026-08-19 17:04 UTCEPSS rescore
  16. 2026-08-19 08:07 UTCVendor advisory
  17. 2026-08-19 08:06 UTCGHSA enrichment
  18. 2026-08-18 20:00 UTCEG score recompute
  19. 2026-08-18 20:00 UTCVendor advisory
  20. 2026-08-18 20:00 UTCGHSA enrichment
  21. 2026-08-18 13:49 UTCEPSS rescore
  22. 2026-08-18 13:49 UTCEPSS rescore
  23. 2026-08-18 07:54 UTCVendor advisory
  24. 2026-08-18 07:54 UTCGHSA enrichment
  25. 2026-08-17 19:48 UTCEG score recompute
Show 41 more
  1. 2026-08-17 19:48 UTCVendor advisory
  2. 2026-08-17 19:48 UTCGHSA enrichment
  3. 2026-08-17 13:47 UTCEPSS rescore
  4. 2026-08-17 08:23 UTCEG score recompute
  5. 2026-08-17 08:23 UTCGHSA enrichment
  6. 2026-08-17 07:32 UTCEG score recompute
  7. 2026-08-17 07:32 UTCGHSA enrichment
  8. 2026-08-17 04:29 UTCEG score recompute
  9. 2026-08-17 04:29 UTCGHSA enrichment
  10. 2026-08-17 04:15 UTCEG score recompute
  11. 2026-08-17 04:15 UTCGHSA enrichment
  12. 2026-08-16 19:43 UTCEG score recompute
  13. 2026-08-16 19:43 UTCGHSA enrichment
  14. 2026-08-16 14:56 UTCEPSS rescore
  15. 2026-08-16 14:56 UTCEPSS rescore
  16. 2026-08-16 07:36 UTCEG score recompute
  17. 2026-08-16 07:36 UTCGHSA enrichment
  18. 2026-08-16 02:15 UTCEPSS rescore
  19. 2026-08-15 19:31 UTCGHSA enrichment
  20. 2026-08-15 07:25 UTCEG score recompute
  21. 2026-08-15 07:25 UTCGHSA enrichment
  22. 2026-08-15 01:31 UTCEPSS rescore
  23. 2026-08-14 19:18 UTCGHSA enrichment
  24. 2026-08-14 13:48 UTCGHSA enrichment
  25. 2026-08-14 01:42 UTCEG score recompute
  26. 2026-08-14 01:42 UTCGHSA enrichment
  27. 2026-08-13 22:00 UTCEPSS rescore
  28. 2026-08-13 13:36 UTCEG score recompute
  29. 2026-08-13 13:36 UTCGHSA enrichment
  30. 2026-08-13 12:47 UTCEG score recompute
  31. 2026-08-13 12:47 UTCGHSA enrichment
  32. 2026-08-13 10:27 UTCGHSA enrichment
  33. 2026-08-12 22:21 UTCEG score recompute
  34. 2026-08-12 22:21 UTCGHSA enrichment
  35. 2026-08-12 22:01 UTCEG score recompute▲ 1.00
  36. 2026-08-12 22:01 UTCGHSA enrichment
  37. 2026-08-12 21:21 UTCEG score recompute▼ 1.00
  38. 2026-08-12 21:20 UTCMITRE cvelistV5CVSS v3 → 6.1 · severity → MEDIUM
  39. 2026-08-12 20:20 UTCEG score recompute
  40. 2026-08-12 19:21 UTCEG score recompute
  41. 2026-08-12 19:20 UTCMITRE cvelistV5first tracked

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2026-73434?
CVE-2026-73434 is a high vulnerability published on August 12, 2026. A flaw was found in GStreamer gst-plugins-good (avidemux). In gstavidemuxriffparsevprp(), the number of available gstriffvprpvideofielddesc entries is calculated by dividing the remaining buffer size by the attacker-controlled vprp->fields value, rather than by sizeof(gstriffvprpvideofield_desc).…
When was CVE-2026-73434 disclosed?
CVE-2026-73434 was first published in the National Vulnerability Database on August 12, 2026, with the most recent update on August 19, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-73434 actively exploited?
CVE-2026-73434 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 96.8% of all scored CVEs.
What is the CVSS score of CVE-2026-73434?
CVE-2026-73434 has a CVSS v3 base score of 6.1 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 7.1.
How do I remediate CVE-2026-73434?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-73434, 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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