CVE-2025-7700: Null Dereference (CVSS 5.3)

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.

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CVSS v3.1 Score

5.3

MEDIUM

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

Weakness Type (CWE)

CWE-476 CWE-476

References

Other 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

Frequently Asked Questions

What is CVE-2025-7700? +

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. It has a CVSS v3.1 base score of 5.3 (MEDIUM).

How severe is CVE-2025-7700? +

CVE-2025-7700 has a CVSS v3.1 score of 5.3 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

How do I check if I'm vulnerable to CVE-2025-7700? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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