8.5

CVE-2021-42097: debian debian_linux Cross-Site Request Forgery (CSRF)

CVSS: 8.5v2.0HighModified
AliasesUBUNTU-CVE-2021-42097
Published 21-10-2021Last modified 04-08-2024
Open JSON

Vulnerability summary

CVE-2021-42097 is a high (CVSS 8.5) Cross-Site Request Forgery (CSRF) vulnerability in debian debian_linux. EPSS estimates a 1.33% chance of exploitation in the next 30 days, higher than 70.6% of scored vulnerabilities.

Overall risk
34/100
0100
Medium · default modelHow is this calculated?
CVSS score
8.5/10
010
High · v2.0 (NVD)
EPSS score
1.33%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 11 · Related 4
DLA-2791-1DSA-4991-1OPENSUSE-SU-2021:1436-1OPENSUSE-SU-2021:1452-1RHSA-2021:4826RHSA-2021:4837

Timeline

  1. 21-10-2021
    PublishedVulnerability first disclosed.
  2. 04-08-2024
    Last modifiedVulnerability information updated.

Description

GNU Mailman before 2.1.35 may allow remote Privilege Escalation. A csrf_token value is not specific to a single user account. An attacker can obtain a value within the context of an unprivileged user account, and then use that value in a CSRF attack against an admin (e.g., for account takeover).

CVSS metrics

3 scores · 2 sources · 2 versions

EPSS trend

Probability

1.33%

Chance of exploitation in the next 30 days

Percentile

71%

Versus all other CVEs

30-day change

0.00 pp

From 1.33% on 18-09-2026

18-09-202618-10-2026
EPSS score
1.33%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Debian1 product
Gnu1 product
Ubuntu1 product
  • mailman< 1:2.1.20-1ubuntu0.6+esm1 | < 1:2.1.26-1ubuntu0.4 | < 1:2.1.29-1ubuntu3.1

3 vendors · 3 products

References

10 links