CVE-2020-21687

Public Exploit

Description

Buffer Overflow vulnerability in scan function in stdscan.c in nasm 2.15rc0 allows remote attackers to cause a denial of service via crafted asm file.

Category

5.5
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.48%
Vendor Advisory nasm.us
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://bugzilla.nasm.us/show_bug.cgi?id=3392645 vendor advisory issue tracking exploit

Frequently Asked Questions

What is the severity of CVE-2020-21687?
CVE-2020-21687 has been scored as a medium severity vulnerability.
How to fix CVE-2020-21687?
To fix CVE-2020-21687, 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-2020-21687 being actively exploited in the wild?
It is possible that CVE-2020-21687 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.
This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.
© 2025 Under My Watch. All Rights Reserved.