What’s Vulnerable › Vulnerabilities

CVE-2021-37311

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.9% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2023-02-03 · updated 2026-06-17
• Weakness: CWE-120

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.

Affected products

• Fcitx 5 Project Fcitx 5: 5.0.8

References

• https://fcitx-im.org
• https://github.com/fcitx/fcitx5/pull/308
• https://fcitx-im.org
• https://github.com/fcitx/fcitx5/pull/308

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