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CVE-2021-37622

20
FAUCET Score

CVE-2021-37622 describes an infinite loop vulnerability in Exiv2 versions v0.27.4 and earlier, a utility for managing image metadata, affecting various Debian and Fedora distributions. This flaw can be triggered when Exiv2 attempts to delete IPTC data from a specially crafted image file, potentially leading to a denial of service. Rated Medium (CVSS 5.5), exploitation requires local access and user interaction (UI:R) to process the malicious file, with no impact on confidentiality or integrity. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
<= 0.27.4CPE matchmatch criteria
cpe:2.3:a:exiv2:exiv2:*:*:*:*:*:*:*:*
33CPE matchmatch criteria
cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*
34CPE matchmatch criteria
cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*
10.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.5MEDIUM

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.11%
Probability of exploitation in next 30 days
EPSS Percentile
62.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0111 is in the 73rd percentile among its peer group of 5,765 CVEs.

Social Chatter

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

Media Mentions

No media coverage found for this CVE.

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

Remediation

Patch Available

Vendor Patches (8)

github_advisorypatch availablevia nvd_reference
View patch
microsoftpatch availablevia msrc
Product: 17009-16823Fixed in: 0.27.5-1
microsoftpatch availablevia msrc
Product: CBL Mariner 2.0 ARMFixed in: 0.27.5-1
microsoftpatch availablevia msrc
Product: cbl2 exiv2 0.27.5-1 on CBL Mariner 2.0Fixed in: 0.27.5-1
microsoftpatch availablevia msrc
Product: CBL Mariner 2.0 x64Fixed in: 0.27.5-1
redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: compat-exiv2-026
redhatvendor investigatingvia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: exiv2
redhatno patchvia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: exiv2

Vendor Advisories (3)

microsoft2022-Jan/CVE-2021-37622

CVE-2021-37622

Jan 11, 2022
microsoft2021-Aug/CVE-2021-37622Moderate

Denial of service due to infinite loop in JpegBase::printStructure (#1)

Aug 10, 2021
redhatCVE-2021-37622Low

exiv2: DoS due to infinite loop in JpegBase::printStructure

Aug 8, 2021

References

github.com / Exiv2/exiv2/pull/1788
PatchThird Party Advisory
github.com / Exiv2/exiv2/security/advisories/GHSA-9jh3-fcc3-g6hv
Third Party Advisory
lists.debian.org / debian-lts-announce/2023/01/msg00004.html
Mailing ListThird Party Advisory
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/FMDT4PJB7P43WSOM3TRQIY3J33BAFVVE
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/UYGDELIFFJWKUU7SO3QATCIXCZJERGAC
security.gentoo.org / glsa/202312-06