7.4

CVE-2024-10963: Pam: improper hostname interpretation in pam_access leads to access control bypass

Deferred
AliasesSUSE-SU-2025:20104-1SUSE-SU-2025:20229-1RHSA-2024:10232
Published 07-11-2024Last modified 13-10-2026

Vulnerability summary

CVE-2024-10963 is a high (CVSS 7.4) Improper Authentication vulnerability in pam. EPSS estimates a 0.78% chance of exploitation in the next 30 days, higher than 56% of scored vulnerabilities.

Priority
Prioritisesevere

Severe, CVSS 7.4 (CVE.org); no exploitation reported by the 5 checked sources; EPSS 1% (FIRST, 03-11-2026)

Source freshness unavailable

How is this decided?
CVSS score
7.4/10
010
High · v3.1 (CVE.org)
EPSS score
0.78%
0%100%
Low · 0.00 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 1
RHSA-2024:10379

Timeline

  1. 07-11-2024
    PublishedVulnerability first disclosed.
  2. 13-10-2026
    Last modifiedVulnerability information updated.

Description

A flaw was found in pam_access, where certain rules in its configuration file are mistakenly treated as hostnames. This vulnerability allows attackers to trick the system by pretending to be a trusted hostname, gaining unauthorized access. This issue poses a risk for systems that rely on this feature to control who can access certain services or terminals.

CVSS metrics

5 scores · 5 sources · 1 version

EPSS trend

Probability

0.78%

Chance of exploitation in the next 30 days

Percentile

56%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.78% 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, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.

Redhat5 products
  • pam< 0:1.5.1-23.el9_4 | < 0:1.5.1-22.el9_5
  • pam-debuginfo< 0:1.5.1-23.el9_4 | < 0:1.5.1-22.el9_5
  • pam-debugsource< 0:1.5.1-23.el9_4 | < 0:1.5.1-22.el9_5
  • pam-devel< 0:1.5.1-23.el9_4 | < 0:1.5.1-22.el9_5
  • pam-docs< 0:1.5.1-23.el9_4 | < 0:1.5.1-22.el9_5
Suse2 products
  • pam&distro=SUSE Linux Micro 6.0< 1.6.0-4.1
  • pam&distro=SUSE Linux Micro 6.1< 1.6.1-slfo.1.1_2.1
Debian1 product
  • pam< 1.7.0-5
Opensuse1 product
  • pam&distro=openSUSE Tumbleweed< 1.7.0-2.1
Ubuntu1 product
  • pam< 1.5.3-5ubuntu5.5

5 vendors · 10 products

References

24 links
Show all 24 references