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CVE-2025-7700

Ffmpeg: null pointer dereference in ffmpeg als decoder (libavcodec/alsdec.c)

Published: Nov 7, 2025Updated: May 6, 2026 Sources: CVE List NVD BDUCWE-476
5.3MEDIUM
NVD MITRE
EPSS Score
0.3%
Top 78.2%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

Description

A flaw was found in FFmpeg’s ALS audio decoder, where it does not properly check for memory allocation failures. This can cause the application to crash when processing certain malformed audio files. While it does not lead to data theft or system control, it can be used to disrupt services and cause a denial of service.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:NI:NA:L
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:LAvailability
Low
Open in CVSS calculator →

Weaknesses

CWE-476

Affected Products

Astra Linux Special EditionООО «РусБИТех-Астра»
On-premOS
Operating Systems / linux-distro
FFmpegFFmpeg teamOSS Libraries
ооо «русбитех-астра»commercialRUOperating Systemsaka rusbitech-astra
ffmpeg teamoss-projectOSS Librariesaka ffmpeg

Exploitability

Official Patch Available
Workaround Available

Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

2 techniques
Impact
Initial Access
View detailed technique mapping

References

https://access.redhat.com/security/cve/CVE-2025-7700
access.redhat.com
https://bugzilla.redhat.com/show_bug.cgi?id=2380420
bugzilla.redhat.com
https://github.com/FFmpeg/FFmpeg/commit/35a6de137a39f274d5e01ed0e0e6c4f04d0aaf07
github.com
and 4 more references View all →

Timeline

Published
Nov 7, 2025
Last Updated
May 6, 2026

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