CVE-2023-2858 Memory corruption in Wireshark

What is CVE-2023-2858?

CVE-2023-2858 is a medium-severity memory corruption vulnerability in Debian Debian Linux, published on 26 May 2023. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

Official description

NetScaler file parser crash in Wireshark 4.0.0 to 4.0.5 and 3.6.0 to 3.6.13 allows denial of service via crafted capture file

Weakness: CWE-787

Which versions are affected by CVE-2023-2858?

It affects 2 products.

Products include Debian Debian Linux, Wireshark Wireshark.

How do I fix CVE-2023-2858?

Upgrade to a fixed version.

Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.

Is CVE-2023-2858 being exploited?

There is no known exploitation of CVE-2023-2858 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-2023-2858, GHSA-wcmq-57jj-6qwc, UBUNTU-CVE-2023-2858.