CVE-2026-0961 — Out-of-bounds Write in Foundation Wireshark

CWE-787 — Out-of-bounds Write7 documents7 sources
Severity
6.5MEDIUMNVD
CNA5.5
EPSS
0.0%
top 93.66%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
Wireshark Foundation WiresharkWireshark
Timeline
PublishedJan 14

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 vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:HExploitability: 2.8 | Impact: 3.6

Affected Packages3 packages

▶NVDwireshark/wireshark4.4.0 — 4.4.13+1
▶CVEListV5wireshark_foundation/wireshark4.6.0 — 4.6.3+1
▶Debianwireshark/wireshark< 4.4.13-0+deb13u1+1

🔴Vulnerability Details

3
OSV
CVE-2026-0961: BLF file parser crash in Wireshark 4↗2026-01-14
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GHSA
GHSA-9pw2-p3rh-r9jh: BLF file parser crash in Wireshark 4↗2026-01-14
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CVEList
Out-of-bounds Write in Wireshark↗2026-01-14
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📋Vendor Advisories

2
Red Hat
Wireshark: Wireshark: Denial of Service vulnerability in BLF file parser↗2026-01-14
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Debian
CVE-2026-0961: wireshark - BLF file parser crash in Wireshark 4.6.0 to 4.6.2 and 4.4.0 to 4.4.12 allows den...↗2026
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🕵️Threat Intelligence

1
Wiz
CVE-2026-0961 Impact, Exploitability, and Mitigation Steps | Wiz↗
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CVE-2026-0961 — Out-of-bounds Write | cvebase