Detections
Analytics

CVE-2020-26575

high

Description

In Wireshark through 3.2.7, the Facebook Zero Protocol (aka FBZERO) dissector could enter an infinite loop. This was addressed in epan/dissectors/packet-fbzero.c by correcting the implementation of offset advancement.

References

https://www.oracle.com/security-alerts/cpujan2021.html

https://security.gentoo.org/glsa/202011-08

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/V2667E6WKVE56G66BVBVD7LJPIDOJ7K3/

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/UHZSVK7PO2LTGFQXFHFXY6SOMSQ7UPRS/

https://lists.debian.org/debian-lts-announce/2021/02/msg00008.html

https://gitlab.com/wireshark/wireshark/-/merge_requests/473

https://gitlab.com/wireshark/wireshark/-/merge_requests/472

https://gitlab.com/wireshark/wireshark/-/merge_requests/471

https://gitlab.com/wireshark/wireshark/-/merge_requests/467

https://gitlab.com/wireshark/wireshark/-/commit/3ff940652962c099b73ae3233322b8697b0d10ab

https://github.com/solidConf/CVE_programs

https://www.wireshark.org/security/wnpa-sec-2020-14.html

https://gitlab.com/wireshark/wireshark/-/issues/16887

https://euvd.enisa.europa.eu/vulnerability/EUVD-2020-19120

Details

Source: Mitre, NVD

Published: 2020-10-06

Updated: 2026-06-17

Risk Information

CVSS v2

Base Score: 5

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P

Severity: Medium

CVSS v3

Base Score: 7.5

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Severity: High

EPSS

EPSS: 0.03116