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.

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

EPSS: 0.003 (21.9th percentile) — read the EPSS interpretation.

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.

Affected products

Wireshark
Wireshark Foundation — versions 4.4.0, 4.2.0

Weakness classification (CWE)

Public proof-of-concept exploits

References

cve@gitlab.com (Vendor Advisory)
cve@gitlab.com (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.