7.8

CVE-2026-5403

Medienbericht
Exploit

Heap-based Buffer Overflow in Wireshark

SBC codec crash in Wireshark 4.6.0 to 4.6.4 and 4.4.0 to 4.4.14 allows denial of service and possible code execution
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Wireshark ≫ Wireshark Version >= 4.4.0 < 4.4.15
Wireshark ≫ Wireshark Version >= 4.6.0 < 4.6.5
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.16% 0.057
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
cve@gitlab.com 7.8 1.8 5.9
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
0b0ca135-0b70-47e7-9f44-1890c2a1c46c 7.8 1.8 5.9
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
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().

CWE-787 Out-of-bounds Write

The product writes data past the end, or before the beginning, of the intended buffer.

Für Zugriff zu Vulnerability Intelligence ist ein VulnDex Zugang erforderlich.
VulnDex Intel
Media Report
04.05.2026 17:53
Für Zugriff zu Vulnerability Intelligence ist ein VulnDex Zugang erforderlich.
VulnDex Intel
Media Report
04.05.2026 10:37
https://www.wireshark.org/security/wnpa-sec-2026-16.html
Vendor Advisory
https://gitlab.com/wireshark/wireshark/-/issues/21103
Third Party Advisory
Exploit
Issue Tracking
https://access.redhat.com/security/cve/CVE-2026-5403
https://bugzilla.redhat.com/show_bug.cgi?id=2464271
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-5403.json