CVE-2021-31292

Name: CVE-2021-31292
Creator: NVD / NIST
Published: 2021-07-26T17:15:07.963+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 2.56%

Last modified Jun 17, 2026

CVE-2021-31292 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. An integer overflow in CrwMap::encode0x1810 of Exiv2 0.27.3 allows attackers to trigger a heap-based buffer overflow and cause a denial of service (DOS) via crafted metadata.. EPSS estimates a 2.56% chance of exploitation in the next 30 days.

Description

An integer overflow in CrwMap::encode0x1810 of Exiv2 0.27.3 allows attackers to trigger a heap-based buffer overflow and cause a denial of service (DOS) via crafted metadata.

Metrics

CVSS 3.1

7.5/10

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

EPSS Probability

2.56%

83.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-190

Affected Software

Vendor	Product	Versions
Exiv2	Exiv2	0.27.3
Debian	Debian Linux	9.0
Debian	Debian Linux	10.0
Fedoraproject	Fedora	33
Fedoraproject	Fedora	34

References

https://github.com/Exiv2/exiv2/issues/1530Exploit, Issue Tracking, Patch, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2021/08/msg00028.htmlMailing List, Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FMDT4PJB7P43WSOM3TRQIY3J33BAFVVE/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UYGDELIFFJWKUU7SO3QATCIXCZJERGAC/
https://security.gentoo.org/glsa/202312-06
https://www.debian.org/security/2021/dsa-4958Third Party Advisory
https://github.com/Exiv2/exiv2/issues/1530Exploit, Issue Tracking, Patch, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2021/08/msg00028.htmlMailing List, Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FMDT4PJB7P43WSOM3TRQIY3J33BAFVVE/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UYGDELIFFJWKUU7SO3QATCIXCZJERGAC/
https://security.gentoo.org/glsa/202312-06
https://www.debian.org/security/2021/dsa-4958Third Party Advisory

Timeline

Published: Jul 26, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-31292?

An integer overflow in CrwMap::encode0x1810 of Exiv2 0.27.3 allows attackers to trigger a heap-based buffer overflow and cause a denial of service (DOS) via crafted metadata.

How severe is CVE-2021-31292?

CVE-2021-31292 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 2.56% probability of exploitation in the next 30 days.

How do I fix CVE-2021-31292?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-31292?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST