6.8

CVE-2021-20316: debian debian_linux

Modified
AliasesUBUNTU-CVE-2021-20316DEBIAN-CVE-2021-20316
Published 23-08-2022Last modified 03-08-2024

Vulnerability summary

CVE-2021-20316 is a medium (CVSS 6.8) vulnerability in debian debian_linux. EPSS estimates a 1.04% chance of exploitation in the next 30 days, higher than 64.1% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 6.8, network access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
6.8/10
010
Medium · v3.1 (NVD)
EPSS score
1.04%
0%100%
Low · +0.07 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 6 · Related 3
MGASA-2022-0054OPENSUSE-SU-2022:0283-1RHSA-2022:1756RHSA-2022:2074SUSE-SU-2022:0283-1SUSE-SU-2022:0323-1

Timeline

  1. 23-08-2022
    PublishedVulnerability first disclosed.
  2. 03-08-2024
    Last modifiedVulnerability information updated.

Description

A flaw was found in the way Samba handled file/directory metadata. This flaw allows an authenticated attacker with permissions to read or modify share metadata, to perform this operation outside of the share.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

1.04%

Chance of exploitation in the next 30 days

Percentile

64%

Versus all other CVEs

30-day change

Increase +0.07 pp

From 0.98% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Version check

Known conditions: network-reachable, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.

Redhat5 products
Debian2 products
Samba1 product
Ubuntu1 product
  • sambaAll versions (No fix recorded)

4 vendors · 9 products

References

9 links