CVE-2021-37311

HIGH

Fcitx 5 - Buffer Overflow

Title source: rule
STIX 2.1

Description

Buffer Overflow vulnerability in fcitx5 5.0.8 allows attackers to cause a denial of service via crafted message to the application's listening port.

References (2)

Core 2
Core References
Exploit, Patch, Third Party Advisory
https://github.com/fcitx/fcitx5/pull/308

Scores

CVSS v3 7.5
EPSS 0.0040
EPSS Percentile 60.7%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact partial

Details

CWE
CWE-120
Status published
Products (1)
fcitx_5_project/fcitx_5 5.0.8
Published Feb 03, 2023
Tracked Since Feb 18, 2026