6.5

CVE-2026-0961: wireshark foundation wireshark Out-of-bounds Write

CVSS: 6.5v3.1MediumAnalyzed
AliasesUBUNTU-CVE-2026-0961DEBIAN-CVE-2026-0961
Published 14-01-2026Last modified 27-03-2026
Open JSON

Vulnerability summary

CVE-2026-0961 is a medium (CVSS 6.5) Out-of-bounds Write vulnerability in wireshark foundation wireshark. EPSS estimates a 0.21% chance of exploitation in the next 30 days, higher than 10.2% of scored vulnerabilities. 1 public exploit is recorded.

Overall risk
36/100
0100
Medium · default modelHow is this calculated?
CVSS score
6.5/10
010
Medium · v3.1 (NVD)
EPSS score
0.21%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1reference

Advisory lineage

Upstream 0 · Downstream 5 · Related 4
DSA-6124-1OPENSUSE-SU-2026:10056-1OPENSUSE-SU-2026:20151-1SUSE-SU-2026:1169-1SUSE-SU-2026:20222-1

Timeline

  1. 14-01-2026
    PublishedVulnerability first disclosed.
  2. 27-03-2026
    Last modifiedVulnerability information updated.

Description

BLF file parser crash in Wireshark 4.6.0 to 4.6.2 and 4.4.0 to 4.4.12 allows denial of service

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.21%

Chance of exploitation in the next 30 days

Percentile

10%

Versus all other CVEs

30-day change

0.00 pp

From 0.21% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.21%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

1 found
  • referenceUnverified

    Exploit Reference (gitlab.com)

    Maturity: unknown

Weaknesses

CWE · root cause

Affected systems

Debian1 product
  • wireshark< 4.4.13-0+deb13u1 | < 4.6.3-1
Ubuntu1 product
  • wiresharkAll versions (No fix recorded)
Wireshark1 product
  • wireshark≥ 4.4.0, < 4.4.13 | ≥ 4.6.0, < 4.6.3
Wireshark foundation1 product
  • wireshark≥ 4.6.0, < 4.6.3 | ≥ 4.4.0, < 4.4.13

4 vendors · 4 products

References

5 links