CVE-2021-3998
7.5
HIGH
CVSS 3.1
EPSS 0.15%
Description
A flaw was found in glibc. The realpath() function can mistakenly return an unexpected value, potentially leading to information leakage and disclosure of sensitive data.
How to fix CVE-2021-3998
To remediate CVE-2021-3998, upgrade the affected package to a fixed version below.
- Debian/glibc—upgrade to 2.33-4 or later
Is CVE-2021-3998 being exploited?
Low — EPSS is 0.1%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0, < 2.33-4
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N |