CVE-2025-53644: OpenCV is an Open Source Computer Vision Library

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CRITICAL 9.8REMOTEUPGRADE

CVE-2025-53644 is a critical-severity flaw (CVSS 9.8) affecting opencv. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

OpenCV is an Open Source Computer Vision Library. Versions 4.10.0 and 4.11.0 have an uninitialized pointer variable on stack that may lead to arbitrary heap buffer write when reading crafted JPEG images. Version 4.12.0 fixes the vulnerability.

Why this priority

Critical severity
Public exploit reference
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	9.8 (Critical)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.4% (top 62%)
CISA exploited list	No
Weakness	CWE-457
Published	2025-07-17
Last modified	2026-06-17

Publisher (CNA): GitHub, Inc. · Vendor: opencv

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

Am I affected?

Timeline

2025-07-17 18:15 UTCPublished CVE record published
2026-06-17 09:38 UTCUpdated Record last modified

opencv opencv UPGRADE

Affected: >= 4.10.0 and < 4.12.0

Fixed in: 4.12.0

Safe to downgrade to: a release before 4.10.0

1. Check installed version

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

2. UPGRADE to 4.12.0 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade opencv

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade opencv

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

3. If no update is available yet, DOWNGRADE to a release before 4.10.0 (Debian / Ubuntu)

apt-cache madison opencv sudo apt install opencv=<VERSION_BEFORE_4.10.0> sudo apt-mark hold opencv

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list opencv sudo dnf downgrade opencv-<VERSION_BEFORE_4.10.0> sudo dnf versionlock add opencv

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-2025-53644?

opencv: upgrade to 4.12.0. Exact commands for each OS are on this page.

Is CVE-2025-53644 being exploited?

CVE-2025-53644 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-2025-53644 affect?

CVE-2025-53644 affects opencv. Severity is critical (CVSS 9.8). OpenCV is an Open Source Computer Vision Library. Versions 4.10.0 and 4.11.0 have an uninitialized pointer variable on stack that may lead to arbitrary heap buffer write when reading crafted JPEG images. Version 4.12.0 fixes the vulnerabili

How urgent is CVE-2025-53644?

Priority 54/100. Critical severity; Public exploit reference; Remotely exploitable, no login, no user action

References

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