What is CVE-2021-37311?

CVE-2021-37311 is a high-severity vulnerability in Fcitx 5 Project, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 7.5/10. Published 2023-02-03.

How severe is CVE-2021-37311?

High severity. CVSS v3 base score is 7.5 out of 10.

Buffer overflow in Fcitx 5 Project

CVE-2021-37311

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.

Vulnerability class: Buffer Overflow

EPSS: 0.009 (56.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Fcitx_5_project Fcitx_5 — versions 5.0.8
N/a — versions n/a

Weakness classification (CWE)

CWE-120 — Buffer Copy without Checking Size of Input (Classic Buffer Overflow)

References

cve@mitre.org (Product)
cve@mitre.org (Exploit, Patch, Third Party Advisory)

Frequently asked questions

What is CVE-2021-37311?: CVE-2021-37311 is a high-severity vulnerability in Fcitx 5 Project, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 7.5/10. Published 2023-02-03.
How severe is CVE-2021-37311?: High severity. CVSS v3 base score is 7.5 out of 10.