CVE-2020-21686

Public Exploit

Description

A stack-use-after-scope issue discovered in expand_mmac_params function in preproc.c in nasm before 2.15.04 allows remote attackers to cause a denial of service via crafted asm file.

Category

5.5
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.33%
Vendor Advisory nasm.us
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://bugzilla.nasm.us/show_bug.cgi?id=3392643 vendor advisory issue tracking exploit

Frequently Asked Questions

What is the severity of CVE-2020-21686?
CVE-2020-21686 has been scored as a medium severity vulnerability.
How to fix CVE-2020-21686?
To fix CVE-2020-21686, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2020-21686 being actively exploited in the wild?
It is possible that CVE-2020-21686 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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