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CVE-2023-44398

26
FAUCET Score

CVE-2023-44398 describes an out-of-bounds write vulnerability in Exiv2 version 0.28.0, a C++ library and utility for image metadata manipulation. This flaw, specifically within the BmffImage::brotliUncompress function, can be triggered by processing a specially crafted image file. With a CVSS score of 8.8 (HIGH), successful exploitation could lead to code execution, compromising confidentiality, integrity, and availability, though user interaction is required. There is currently no evidence of active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or inclusion in CISA's KEV catalog, despite some community discussion and media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
0.28.0CPE matchmatch criteria
cpe:2.3:a:exiv2:exiv2:0.28.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.8HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.97%
Probability of exploitation in next 30 days
EPSS Percentile
58.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0097 is in the 59th percentile among its peer group of 14,875 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.1 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (3)

github_advisorypatch availablevia nvd_reference
View patch
microsoftpatch availablevia msrc
Product: 17692-17084Fixed in: 0.28.3-1
microsoftpatch availablevia msrc
Product: azl3 exiv2 0.28.3-1 on Azure Linux 3.0Fixed in: 0.28.3-1

Vendor Advisories (2)

microsoft2023-Nov/CVE-2023-44398Important

Out-of-bounds write in exiv2

Nov 14, 2023
redhatCVE-2023-44398Moderate

exiv2: Out of bounds write in function BmffImage::brotliUncompress

Nov 6, 2023

References

github.com / Exiv2/exiv2/commit/e884a0955359107f4031c74a07406df7e99929a5
Patch
github.com / Exiv2/exiv2/security/advisories/GHSA-hrw9-ggg3-3r4r
Vendor Advisory
security.gentoo.org / glsa/202312-06