CVE-2026-9567

LOWNVD 3.33.3—
EchelonGraph scoreMEDIUM confidence

Score 3.3 from GitHub Security Advisory (severity: LOW) published 2026-05-26. NVD baseline CVSS 3.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Elevated
3.3
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 0%CVSS: 3.3Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

A security flaw has been discovered in GPAC up to 2.4.0. Affected is the function MergeFragment of the file src/isomedia/isom_intern.c of the component MP4Box. The manipulation results in null pointer dereference. The attack needs to be approached locally. The exploit has been released to the public and may be used for attacks. The patch is identified as 525bf1af642c30af04e4df5345e6d798c0a4d8a1. It is advisable to implement a patch to correct this issue.

CVSS v3
3.3
EG Score
3.3(medium)
EPSS
1.8%
KEV
Not listed

Published

May 26, 2026

Last Modified

May 26, 2026

References (7)

Vendor Advisories for CVE-2026-9567(1)

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

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 6× in last 7d / 27× 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. 2026-07-16 18:23 UTCOSV refresh
  2. 2026-07-16 17:03 UTCEPSS rescore
  3. 2026-07-15 16:57 UTCEPSS rescore
  4. 2026-07-15 02:00 UTCEPSS rescore
  5. 2026-07-13 22:31 UTCEPSS rescore
  6. 2026-07-13 06:13 UTCEPSS rescore
  7. 2026-07-09 19:10 UTCEPSS rescore
  8. 2026-07-08 15:16 UTCEPSS rescore
  9. 2026-07-07 13:46 UTCEPSS rescore
  10. 2026-07-06 16:27 UTCEPSS rescore
  11. 2026-07-06 02:23 UTCEPSS rescore
  12. 2026-07-05 02:31 UTCEPSS rescore
  13. 2026-07-04 06:31 UTCEPSS rescore
  14. 2026-07-01 15:07 UTCEPSS rescore
  15. 2026-06-30 23:22 UTCEPSS rescore
  16. 2026-06-28 16:58 UTCGHSA enrichment
  17. 2026-06-28 14:07 UTCEPSS rescore
  18. 2026-06-28 04:56 UTCEPSS rescore
  19. 2026-06-27 03:08 UTCEPSS rescore
  20. 2026-06-25 11:20 UTCGHSA enrichment
  21. 2026-06-24 14:05 UTCEPSS rescore
  22. 2026-06-23 21:33 UTCEPSS rescore
  23. 2026-06-22 14:25 UTCEPSS rescore
  24. 2026-06-21 14:56 UTCEPSS rescore
  25. 2026-06-21 01:59 UTCEPSS rescore
Show 32 more
  1. 2026-06-19 19:26 UTCEPSS rescore
  2. 2026-06-18 17:52 UTCEPSS rescore
  3. 2026-06-17 17:53 UTCEPSS rescore
  4. 2026-06-17 01:36 UTCGHSA enrichment
  5. 2026-06-16 17:53 UTCEPSS rescore
  6. 2026-06-15 17:49 UTCEPSS rescore
  7. 2026-06-14 23:18 UTCEPSS rescore
  8. 2026-06-13 23:00 UTCEPSS rescore
  9. 2026-06-13 21:11 UTCGHSA enrichment
  10. 2026-06-12 23:12 UTCEPSS rescore
  11. 2026-06-12 23:12 UTCEPSS rescore
  12. 2026-06-11 14:00 UTCEPSS rescore
  13. 2026-06-10 22:19 UTCEPSS rescore
  14. 2026-06-10 15:14 UTCGHSA enrichment
  15. 2026-06-10 13:22 UTCEPSS rescore
  16. 2026-06-08 14:17 UTCEPSS rescore
  17. 2026-06-07 15:25 UTCEPSS rescore
  18. 2026-06-07 10:50 UTCGHSA enrichment
  19. 2026-06-06 13:47 UTCEPSS rescore
  20. 2026-06-05 22:47 UTCEPSS rescore
  21. 2026-06-05 06:10 UTCEPSS rescore
  22. 2026-06-04 13:12 UTCEPSS rescore
  23. 2026-06-04 06:26 UTCGHSA enrichment
  24. 2026-06-02 20:13 UTCEPSS rescore
  25. 2026-06-01 13:52 UTCEPSS rescore
  26. 2026-06-01 02:01 UTCGHSA enrichment
  27. 2026-05-31 22:30 UTCEPSS rescore
  28. 2026-05-31 00:16 UTCEPSS rescore
  29. 2026-05-29 13:44 UTCEPSS rescore
  30. 2026-05-28 13:44 UTCEPSS rescore
  31. 2026-05-27 13:40 UTCEPSS rescore
  32. 2026-05-26 18:02 UTCEG score recompute

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-9567?
CVE-2026-9567 is a low vulnerability published on May 26, 2026. A security flaw has been discovered in GPAC up to 2.4.0. Affected is the function MergeFragment of the file src/isomedia/isom_intern.c of the component MP4Box. The manipulation results in null pointer dereference. The attack needs to be approached locally. The exploit has been released to the…
When was CVE-2026-9567 disclosed?
CVE-2026-9567 was first published in the National Vulnerability Database on May 26, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-9567 actively exploited?
CVE-2026-9567 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1.8% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-9567?
CVE-2026-9567 has a CVSS v3 base score of 3.3 (NVD).
How do I remediate CVE-2026-9567?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-9567, 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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