CVE-2025-0518: Unchecked Return Value, Out-of-bounds Read vulnerability in FFmpeg allows Read Sensitive Constants Within an E

Routine

MEDIUM 5.3REMOTEDOWNGRADE

CVE-2025-0518 is a medium-severity flaw (CVSS 5.3) affecting ffmpeg. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Unchecked Return Value, Out-of-bounds Read vulnerability in FFmpeg allows Read Sensitive Constants Within an Executable. This vulnerability is associated with program files https://github.Com/FFmpeg/FFmpeg/blob/master/libavfilter/af_pan.C . This issue affects FFmpeg: 7.1. Issue was fixed: https://github.com/FFmpeg/FFmpeg/commit/b5b6391d64807578ab872dc58fb8aa621dcfc38a https://github.com/FFmpeg/FFmpeg/commit/b5b6391d64807578ab872dc58fb8aa621

Why this priority

Remotely exploitable, no login, no user action

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	5.3 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.4% (top 68%)
CISA exploited list	No
Weakness	CWE-125, CWE-252
Published	2025-01-16
Last modified	2026-06-17

Publisher (CNA): CyberArk Labs · Vendor: ffmpeg

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2025-01-16 17:15 UTCPublished CVE record published
2026-06-17 08:26 UTCUpdated Record last modified

ffmpeg ffmpeg DOWNGRADE

Affected: 7.1

Fixed in: no fixed release known

Safe to downgrade to: a release before 7.1

1. Check installed version

apt-cache policy ffmpeg || rpm -q ffmpeg || ffmpeg --version

2. No fixed release: DOWNGRADE to a release before 7.1 (Debian / Ubuntu)

apt-cache madison ffmpeg sudo apt install ffmpeg=<VERSION_BEFORE_7.1> sudo apt-mark hold ffmpeg

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list ffmpeg sudo dnf downgrade ffmpeg-<VERSION_BEFORE_7.1> sudo dnf versionlock add ffmpeg

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2025-0518?

ffmpeg: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2025-0518 being exploited?

CVE-2025-0518 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2025-0518 affect?

CVE-2025-0518 affects ffmpeg. Severity is medium (CVSS 5.3). Unchecked Return Value, Out-of-bounds Read vulnerability in FFmpeg allows Read Sensitive Constants Within an Executable. This vulnerability is associated with program files https://github.Com/FFmpeg/FFmpeg/blob/master/libavfilter/af_pan.C

How urgent is CVE-2025-0518?

Priority 31/100. Remotely exploitable, no login, no user action

Software pages

GitHub vulnerabilities · FFmpeg vulnerabilities

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References

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