CVE-2021-39544

Name: CVE-2021-39544
Creator: NVD / NIST
Published: 2021-09-20T16:15:12.787+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.8/10EPSS 0.74%

Last modified Jun 17, 2026

CVE-2021-39544 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. An issue was discovered in sela through 20200412. file::WavFile::writeToFile() in wav_file.c has a heap-based buffer overflow.. EPSS estimates a 0.74% chance of exploitation in the next 30 days.

Description

An issue was discovered in sela through 20200412. file::WavFile::writeToFile() in wav_file.c has a heap-based buffer overflow.

Metrics

CVSS 3.1

7.8/10

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

EPSS Probability

0.74%

49.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-787

Affected Software

Vendor	Product	Versions
Sela Project	Sela	<= 2020-04-12

References

https://github.com/sahaRatul/sela/issues/25Exploit, Issue Tracking, Third Party Advisory
https://github.com/sahaRatul/sela/issues/25Exploit, Issue Tracking, Third Party Advisory

Timeline

Published: Sep 20, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-39544?

An issue was discovered in sela through 20200412. file::WavFile::writeToFile() in wav_file.c has a heap-based buffer overflow.

How severe is CVE-2021-39544?

CVE-2021-39544 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 0.74% probability of exploitation in the next 30 days.

How do I fix CVE-2021-39544?

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-2021-39544?

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

Scan your code now

Source: NVD / NIST