5.5

CVE-2026-76921

Exploit

Use After Free in Wireshark

CMS protocol dissector crash 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
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.12% 0.021
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
cve@gitlab.com 5.5 1.8 3.6
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
CWE-416 Use After Free

The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

https://www.wireshark.org/security/wnpa-sec-2026-83.html
Vendor Advisory
https://gitlab.com/wireshark/wireshark/-/work_items/21457
Vendor Advisory
Exploit
Mitigation
https://gitlab.com/wireshark/wireshark/-/work_items/21458
Vendor Advisory
Exploit
Mitigation