Buffer overflow in Wireshark
CVE-2025-5601
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
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.003 (21.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 22nd percentile — 21.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.003 · change: +0.000
Affected products
- Wireshark
- Wireshark Foundation — versions 4.4.0, 4.2.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.wireshark.org/security/wnpa-sec-2025-02.html (Vendor Advisory)
- gitlab.com/wireshark/wireshark/-/issues/20509 (issue-tracking, Exploit, permissions-required, Issue Tracking)
Frequently asked questions
- What is CVE-2025-5601?
- CVE-2025-5601 is a high-severity vulnerability in Wireshark, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 7.8/10. Published 2025-06-04.
- How severe is CVE-2025-5601?
- High severity. CVSS v3 base score is 7.8 out of 10.
- Is CVE-2025-5601 known to be exploited?
- 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.