What’s Vulnerable › Vulnerabilities

CVE-2018-9258

• Severity: high (CVSS 7.5 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.9% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2018-04-04 · updated 2026-06-17
• Weakness: CWE-20

Description

In Wireshark 2.4.0 to 2.4.5, the TCP dissector could crash. This was addressed in epan/dissectors/packet-tcp.c by preserving valid data sources.

Affected products

• Debian Linux: 7.0
• Wireshark Foundation Wireshark: from 2.4.0 through 2.4.5

References

• https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=14472
• https://code.wireshark.org/review/gitweb?p=wireshark.git%3Ba=commit%3Bh=2d4695de1477df60b0188fd581c0c279db601978
• https://lists.debian.org/debian-lts-announce/2018/05/msg00019.html
• https://www.wireshark.org/security/wnpa-sec-2018-21.html
• https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=14472
• https://code.wireshark.org/review/gitweb?p=wireshark.git%3Ba=commit%3Bh=2d4695de1477df60b0188fd581c0c279db601978
• https://lists.debian.org/debian-lts-announce/2018/05/msg00019.html
• https://www.wireshark.org/security/wnpa-sec-2018-21.html

Get alerted when CVE-2018-9258 or the next vulnerability affects your stack