What’s Vulnerable › Vulnerabilities

CVE-2025-7700: Ffmpeg: null pointer dereference in ffmpeg als decoder (libavcodec/alsdec.c)

• Severity: medium (CVSS 5.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-11-07 · updated 2026-06-17
• Weakness: CWE-476

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.

References

• https://access.redhat.com/security/cve/CVE-2025-7700
• https://bugzilla.redhat.com/show_bug.cgi?id=2380420
• https://github.com/FFmpeg/FFmpeg/commit/35a6de137a39f274d5e01ed0e0e6c4f04d0aaf07

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