CVE-2025-55645 — MEDIUM (5.5)

Q: What is CVE-2025-55645?

CVE-2025-55645 is a vulnerability with a CVSS score of 5.5 (MEDIUM). A heap buffer overflow in the gf_cenc_set_pssh function (isomedia/drm_sample.c) of GPAC MP4Box v2.4 allows attackers to cause a Denial of Service (DoS) via supplying a crafted MP4 file.

Q: How severe is CVE-2025-55645?

CVE-2025-55645 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.

Q: Is there a patch for CVE-2025-55645?

Check the references section above for vendor advisories and patch information. Affected products include: Gpac Gpac.

Vulnerability Description

A heap buffer overflow in the gf_cenc_set_pssh function (isomedia/drm_sample.c) of GPAC MP4Box v2.4 allows attackers to cause a Denial of Service (DoS) via supplying a crafted MP4 file.

CVSS Score

5.5

MEDIUM

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality

NONE

Integrity

NONE

Availability

HIGH

Affected Products

Vendor	Product	Versions
Gpac	Gpac	< 26.02.0

Related Weaknesses (CWE)

CWE-122

References

https://infosec.exchange/@sigdevel/116736802253007654ExploitMitigationPatch
http://www.openwall.com/lists/oss-security/2026/06/13/6ExploitMailing ListThird Party Advisory

FAQ

What is CVE-2025-55645?

CVE-2025-55645 is a vulnerability with a CVSS score of 5.5 (MEDIUM). A heap buffer overflow in the gf_cenc_set_pssh function (isomedia/drm_sample.c) of GPAC MP4Box v2.4 allows attackers to cause a Denial of Service (DoS) via supplying a crafted MP4 file.

How severe is CVE-2025-55645?

CVE-2025-55645 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2025-55645?

Check the references section above for vendor advisories and patch information. Affected products include: Gpac Gpac.