CVE-2022-22826 Integer overflow in n/a

What is CVE-2022-22826?

CVE-2022-22826 is a high-severity vulnerability in Debian Debian Linux, published on 8 Jan 2022. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

nextScaffoldPart in xmlparse.c in Expat (aka libexpat) before 2.4.3 has an integer overflow.

Weakness: CWE-190

Which versions are affected by CVE-2022-22826?

It affects 4 products.

Products include Debian Debian Linux, Libexpat Project Libexpat, Siemens Sinema Remote Connect Server, Tenable Nessus.

How do I fix CVE-2022-22826?

Upgrade to a fixed version.

Is CVE-2022-22826 being exploited?

There is no known exploitation of CVE-2022-22826 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 ALPINE-CVE-2022-22826, AZL-7160, CLEANSTART-2026-KU66838, DEBIAN-CVE-2022-22826, GHSA-q5xc-gwgw-8j5q, JLSEC-2025-48 and 1 more.