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CVE-2025-5601VulnerabilityPublished Updated

CVE-2025-5601: Wireshark · Classic Buffer Overflow

Affects WiresharkSource CVE Database V5

0

Not known to be exploited · CVSS 7.8 High.

Data as of 25 Oct 2026, 19:02 UTC

CVSS 3.1 base score
7.8High
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.3% chance of exploitation in 30 days – higher than 23% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 4 Jun 2025

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq 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 2026-10-25.

What to do

Affected software

ProductAffectedFixed in
GitHubwireshark/wiresharkpkg:github/wireshark/wiresharkOther threatsAffected
  • =4.4.0
  • =4.2.0
Fixed in–

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

To mitigate CVE-2025-5601, organizations should immediately upgrade Wireshark to a version beyond 4.4.6 or 4.2.12 once patches are released by the Wireshark Foundation. Until patches are available, users should avoid opening untrusted or suspicious capture files and restrict Wireshark usage to trusted personnel only. Implement network segmentation and strict access controls to limit exposure of systems running Wireshark. Employ endpoint protection solutions capable of detecting anomalous application crashes or exploitation attempts. Additionally, consider sandboxing Wireshark or running it in isolated virtual environments to contain potential exploitation impacts. Regularly monitor security advisories from Wireshark and related cybersecurity sources for updates or exploit developments. Educate users on the risks of opening unknown capture files and enforce policies to validate file sources before analysis. Finally, integrate detection rules in intrusion detection/prevention systems to flag suspicious packet injections that could trigger this vulnerability.

Description

Column handling crashes in Wireshark 4.4.0 to 4.4.6 and 4.2.0 to 4.2.12 allows denial of service via packet injection or crafted capture file

References

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