CVE-2021-3549

Name: CVE-2021-3549
Creator: NVD / NIST
Published: 2021-05-26T21:15:08.347+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 7.1/10EPSS 0.97%

Last modified Jun 17, 2026

CVE-2021-3549 is a high-severity vulnerability rated 7.1/10 on the CVSS scale. An out of bounds flaw was found in GNU binutils objdump utility version 2.36. An attacker could use this flaw and pass a large section to avr_elf32_load_records_from_section() probably resulting in a crash or in some cases memory corruption. EPSS estimates a 0.97% chance of exploitation in the next 30 days.

Description

An out of bounds flaw was found in GNU binutils objdump utility version 2.36. An attacker could use this flaw and pass a large section to avr_elf32_load_records_from_section() probably resulting in a crash or in some cases memory corruption. The highest threat from this vulnerability is to integrity as well as system availability.

Metrics

CVSS 3.1

7.1/10

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

EPSS Probability

0.97%

57.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Gnu	Binutils	2.36

References

https://bugzilla.redhat.com/show_bug.cgi?id=1960717Issue Tracking, Patch, Third Party Advisory
https://security.gentoo.org/glsa/202208-30Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1960717Issue Tracking, Patch, Third Party Advisory
https://security.gentoo.org/glsa/202208-30Third Party Advisory
https://security.netapp.com/advisory/ntap-20250228-0005/

Timeline

Published: May 26, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-3549?

How severe is CVE-2021-3549?

CVE-2021-3549 has a CVSS score of 7.1/10 (HIGH severity). The EPSS model estimates a 0.97% probability of exploitation in the next 30 days.

How do I fix CVE-2021-3549?

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-2021-3549?

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

Scan your code now

Source: NVD / NIST