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.
CVE-2023-44398
This high-severity CVE scores 8.8 under NVD CVSS v3. EPSS exploit probability: 0.6%, top 30% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
- High severity, but no confirmed exploitation yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 8.8
- EG Score
- 8.8(medium)
- EPSS
- 57.5%
- KEV
- Not listed
Published
November 6, 2023
Last Modified
June 17, 2026
References (6)
- security-advisories@githubhttps://github.com/Exiv2/exiv2/commit/e884a0955359107f4031c74a07406df7e99929a5
- security-advisories@githubhttps://github.com/Exiv2/exiv2/security/advisories/GHSA-hrw9-ggg3-3r4r
- security-advisories@githubhttps://security.gentoo.org/glsa/202312-06
- af854a3a-2127-422b-91ae-364da2661108https://github.com/Exiv2/exiv2/commit/e884a0955359107f4031c74a07406df7e99929a5
- af854a3a-2127-422b-91ae-364da2661108https://github.com/Exiv2/exiv2/security/advisories/GHSA-hrw9-ggg3-3r4r
- af854a3a-2127-422b-91ae-364da2661108https://security.gentoo.org/glsa/202312-06
Affected Packages
(1 across 1 ecosystem)
PyPI(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| exiv2 | 0.1 ... 0.17.5 (28 versions) | e884a0955359107f4031c74a07406df7e99929a5 | — |
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
All Vendor Advisories
(1)
Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.
Data Freshness Timeline
(refreshed 8× in last 7d / 46× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
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Frequently asked(5)
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