CVE-2025-26623: Use After Free in Exiv2
First published: Tue Feb 18 2025(Updated: )
### Impact A heap buffer overflow was found in Exiv2 versions v0.28.0 to v0.28.4. Versions prior to v0.28.0, such as v0.27.7, are **not** affected. Exiv2 is a command-line utility and C++ library for reading, writing, deleting, and modifying the metadata of image files. The heap overflow is triggered when Exiv2 is used to write metadata into a crafted image file. An attacker could potentially exploit the vulnerability to gain code execution, if they can trick the victim into running Exiv2 on a crafted image file. Note that this bug is only triggered when writing the metadata, which is a less frequently used Exiv2 operation than reading the metadata. For example, to trigger the bug in the Exiv2 command-line application, you need to add an extra command-line argument such as `fixiso`. ### Patches The bug is fixed in version v0.28.5. ### References Issue: https://github.com/Exiv2/exiv2/issues/3168 Fix: https://github.com/Exiv2/exiv2/pull/3174 ### For more information Please see our [security policy](https://github.com/Exiv2/exiv2/security/policy) for information about Exiv2 security.
Credit: security-advisories@github.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| pip/Exiv2 | >=0.28.0<0.28.5 | 0.28.5 |
| CentOS Dos2unix | >=0.28.0<0.28.5 |
Never miss a vulnerability like this again
Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.
Reference Links
- https://github.com/Exiv2/exiv2/security/advisories/GHSA-38h4-fx85-qcx7
- https://github.com/Exiv2/exiv2/issues/3168
- https://nvd.nist.gov/vuln/detail/CVE-2025-26623
- https://github.com/Exiv2/exiv2/pull/3174
- https://github.com/jim-easterbrook/python-exiv2/commit/4cc875e392f9e0bc705fe03d929b9a382b78dae4
- https://github.com/advisories/GHSA-38h4-fx85-qcx7 (Advisory)
Frequently Asked Questions
What is the severity of CVE-2025-26623?
CVE-2025-26623 has been rated with a high severity due to the potential for a heap buffer overflow.
How do I fix CVE-2025-26623?
To fix CVE-2025-26623, upgrade Exiv2 to version 0.28.5 or later.
Which versions of Exiv2 are affected by CVE-2025-26623?
Exiv2 versions from 0.28.0 to 0.28.4 are affected by CVE-2025-26623.
Is Exiv2 version 0.27.7 affected by CVE-2025-26623?
No, Exiv2 version 0.27.7 is not affected by CVE-2025-26623.
What types of vulnerabilities does CVE-2025-26623 involve?
CVE-2025-26623 involves a heap buffer overflow vulnerability.
- agent/weakness
- agent/title
- agent/type
- agent/first-publish-date
- collector/nvd-api
- source/NVD
- agent/severity
- agent/author
- collector/nvd-cve
- agent/references
- agent/last-modified-date
- agent/source
- agent/description
- collector/github-advisory-latest
- source/GitHub
- alias/GHSA-38h4-fx85-qcx7
- alias/CVE-2025-26623
- agent/software-canonical-lookup
- agent/event
- collector/mitre-cve
- source/MITRE
- collector/epss-latest
- source/FIRST
- agent/tags
- agent/guess-ai
- agent/software-canonical-lookup-request
- agent/epss
- agent/softwarecombine
- package-manager/pip
- vendor/exiv2
- canonical/centos dos2unix