CVE-2021-41055

Name: CVE-2021-41055
Creator: NVD / NIST
Published: 2021-10-11T03:15:06.707+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 1.52%

Last modified Jun 17, 2026

CVE-2021-41055 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. Gajim 1.2.x and 1.3.x before 1.3.3 allows remote attackers to cause a denial of service (crash) via a crafted XMPP Last Message Correction (XEP-0308) message in multi-user chat, where the message ID equals the correction ID.. EPSS estimates a 1.52% chance of exploitation in the next 30 days.

Description

Gajim 1.2.x and 1.3.x before 1.3.3 allows remote attackers to cause a denial of service (crash) via a crafted XMPP Last Message Correction (XEP-0308) message in multi-user chat, where the message ID equals the correction ID.

Metrics

CVSS 3.1

7.5/10

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

EPSS Probability

1.52%

71.3th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
Gajim	Gajim	>= 1.2.0, < 1.3.3

References

https://dev.gajim.org/gajim/gajim/-/issues/10638Exploit, Issue Tracking, Vendor Advisory
https://dev.gajim.org/gajim/gajim/-/tags/gajim-1.3.3Vendor Advisory
https://dev.gajim.org/gajim/gajim/-/issues/10638Exploit, Issue Tracking, Vendor Advisory
https://dev.gajim.org/gajim/gajim/-/tags/gajim-1.3.3Vendor Advisory

Timeline

Published: Oct 11, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-41055?

How severe is CVE-2021-41055?

CVE-2021-41055 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 1.52% probability of exploitation in the next 30 days.

How do I fix CVE-2021-41055?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-41055?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST