6.5

CVE-2026-76887

Heap-based Buffer Overflow in Wireshark

Crash in the Wireshark dissection engine in 4.6.0 to 4.6.7 and 4.4.0 to 4.4.18 allows denial of service
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Wireshark ≫ Wireshark Version >= 4.4.0 < 4.4.18
Wireshark ≫ Wireshark Version >= 4.6.0 < 4.6.8
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.17% 0.072
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
NIST 6.5 2.8 3.6
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
cve@gitlab.com 3.1 1.6 1.4
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:N/A:L
CWE-122 Heap-based Buffer Overflow

A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().

https://www.wireshark.org/security/wnpa-sec-2026-69.html
Vendor Advisory
https://gitlab.com/wireshark/wireshark/-/work_items/21423
Vendor Advisory
Mitigation