CVE-2021-41396

Name: CVE-2021-41396
Creator: NVD / NIST
Published: 2022-07-12T14:15:14.797+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.5/10EPSS 1.17%

Last modified Jun 17, 2026

CVE-2021-41396 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. Live555 through 1.08 does not handle socket connections properly. A huge number of incoming socket connections in a short time invokes the error-handling module, in which a heap-based buffer overflow happens. EPSS estimates a 1.17% chance of exploitation in the next 30 days.

Description

Live555 through 1.08 does not handle socket connections properly. A huge number of incoming socket connections in a short time invokes the error-handling module, in which a heap-based buffer overflow happens. An attacker can leverage this to launch a DoS attack.

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

1.17%

63.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-787

Affected Software

Vendor	Product	Versions
Live555	Live555	<= 1.08

References

http://lists.live555.com/pipermail/live-devel/2021-September/021994.htmlExploit, Mailing List, Vendor Advisory
http://www.live555.com/liveMedia/public/changelog.txtRelease Notes, Vendor Advisory
http://lists.live555.com/pipermail/live-devel/2021-September/021994.htmlExploit, Mailing List, Vendor Advisory
http://www.live555.com/liveMedia/public/changelog.txtRelease Notes, Vendor Advisory

Timeline

Published: Jul 12, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-41396?

How severe is CVE-2021-41396?

CVE-2021-41396 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 1.17% probability of exploitation in the next 30 days.

How do I fix CVE-2021-41396?

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-2021-41396?

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

Scan your code now

Source: NVD / NIST