What’s Vulnerable › Vulnerabilities

CVE-2023-44398: Out-of-bounds write in exiv2

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.0% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2023-11-06 · updated 2026-06-17
• Weakness: CWE-787

Description

Exiv2 is a C++ library and a command-line utility to read, write, delete and modify Exif, IPTC, XMP and ICC image metadata. An out-of-bounds write was found in Exiv2 version v0.28.0. The vulnerable function, `BmffImage::brotliUncompress`, is new in v0.28.0, so earlier versions of Exiv2 are _not_ affected. The out-of-bounds write is triggered when Exiv2 is used to read the metadata of 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. This bug is fixed in version v0.28.1. Users are advised to upgrade. There are no known workarounds for this vulnerability.

Affected products

• exiv2: 0.28.0

References

• https://github.com/Exiv2/exiv2/commit/e884a0955359107f4031c74a07406df7e99929a5
• https://github.com/Exiv2/exiv2/security/advisories/GHSA-hrw9-ggg3-3r4r
• https://security.gentoo.org/glsa/202312-06
• https://github.com/Exiv2/exiv2/commit/e884a0955359107f4031c74a07406df7e99929a5
• https://github.com/Exiv2/exiv2/security/advisories/GHSA-hrw9-ggg3-3r4r
• https://security.gentoo.org/glsa/202312-06

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