CVE-2021-41043

Name: CVE-2021-41043
Creator: NVD / NIST
Published: 2022-01-05T12:15:08.127+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.5/10EPSS 0.87%

Last modified Jun 17, 2026

CVE-2021-41043 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. Use after free in tcpslice triggers AddressSanitizer, no other confirmed impact.. EPSS estimates a 0.87% chance of exploitation in the next 30 days.

Description

Use after free in tcpslice triggers AddressSanitizer, no other confirmed impact.

Metrics

CVSS 3.1

5.5/10

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

EPSS Probability

0.87%

54.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Tcpdump	Tcpslice	< 1.5

References

https://github.com/the-tcpdump-group/tcpslice/issues/11Exploit, Third Party Advisory
https://github.com/the-tcpdump-group/tcpslice/issues/11Exploit, Third Party Advisory

Timeline

Published: Jan 5, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-41043?

Use after free in tcpslice triggers AddressSanitizer, no other confirmed impact.

How severe is CVE-2021-41043?

CVE-2021-41043 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 0.87% probability of exploitation in the next 30 days.

How do I fix CVE-2021-41043?

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-2021-41043?

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

Scan your code now

Source: NVD / NIST