Wireshark 4.2.0 · IEEE 1609.2 dissector crash
Affects wiresharkSource GCVE Database
Not known to be exploited · CVSS 7.8 High.
Data as of 9 Nov 2026, 14:36 UTC
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 3 Jan 2024
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 9 Nov 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
Ubuntu Pro 22.04 LTSwiresharkpkg:deb/ubuntu/wireshark?arch=source&distro=esm-apps/jammyOther threats | Affected
| Fixed in– |
Ubuntu Pro 20.04 LTSwiresharkpkg:deb/ubuntu/wireshark?arch=source&distro=esm-apps/focalOther threats | Affected
| Fixed in– |
Ubuntu Pro 18.04 LTSwiresharkpkg:deb/ubuntu/wireshark?arch=source&distro=esm-apps/bionicOther threats | Affected
| Fixed in– |
Ubuntu Pro 14.04 LTSwiresharkpkg:deb/ubuntu/wireshark?arch=source&distro=esm-infra-legacy/trustyOther threats | Affected
| Fixed in– |
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
Until a fix is applied, avoid opening untrusted capture files and limit exposure to untrusted network traffic that could trigger the vulnerability.
Description
A vulnerability in Wireshark's IEEE 1609.2 dissector in versions 4.2.0, 4.0.0 to 4.0.11, and 3.6.0 to 3.6.19 can cause a crash leading to denial of service. This can be triggered by packet injection or a crafted capture file. The flaw has a high severity with a CVSS score of 7.8.