CVE-2021-31292 Integer overflow in n/a

What is CVE-2021-31292?

CVE-2021-31292 is a high-severity vulnerability in Debian Debian Linux, published on 26 Jul 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official 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.

Weakness: CWE-190

Which versions are affected by CVE-2021-31292?

1 open source package ship an affected version, including exiv2. It affects 3 products.

Products include Debian Debian Linux, Exiv2 Exiv2, Fedoraproject Fedora.

How do I fix CVE-2021-31292?

Upgrade to a fixed version.

Is CVE-2021-31292 being exploited?

There is no known exploitation of CVE-2021-31292 in the wild and no public exploit code.

Other vulnerabilities in Debian Debian Linux

• CVE-2015-3306 ProFTPD Improper Access Control Exploited Critical 10.0
• CVE-2025-49113 RoundCube Webmail Deserialization of Untrusted Data Exploited Critical 9.9
• CVE-2026-24061 GNU InetUtils Argument Injection Exploited Critical 9.8
• CVE-2025-39682 Linux Kernel Improper Check for Unusual or Exceptional Conditions Exploited Critical 9.8
• CVE-2024-9680 Mozilla Firefox Use-After-Free Exploited Critical 9.8

All Debian Debian Linux vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as DEBIAN-CVE-2021-31292, GHSA-6558-x489-9qhw, PYSEC-2021-877.