CVE-2020-21686
5.5
MEDIUM
CVSS 3.1
EPSS 0.23%
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.
How to fix CVE-2020-21686
To remediate CVE-2020-21686, upgrade the affected package to a fixed version below.
- Debian/nasm—upgrade to 2.15.04-1 or later
Is CVE-2020-21686 being exploited?
Low — EPSS is 0.2%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0, < 2.15.04-1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.5 | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H |