8.8

CVE-2022-32744: samba Authentication Bypass by Spoofing

Modified
AliasesALPINE-CVE-2022-32744UBUNTU-CVE-2022-32744DEBIAN-CVE-2022-32744
Published 25-08-2022Last modified 03-08-2024

Vulnerability summary

CVE-2022-32744 is a high (CVSS 8.8) Authentication Bypass by Spoofing vulnerability in samba. EPSS estimates a 1.18% chance of exploitation in the next 30 days, higher than 67.7% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 8.8, network access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
8.8/10
010
High · v3.1 (NVD)
EPSS score
1.18%
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 11 · Related 9
DSA-5205-1MGASA-2022-0299OPENSUSE-SU-2024:12243-1SUSE-SU-2022:2582-1SUSE-SU-2022:2586-1SUSE-SU-2022:2586-2

Timeline

  1. 25-08-2022
    PublishedVulnerability first disclosed.
  2. 03-08-2024
    Last modifiedVulnerability information updated.

Description

A flaw was found in Samba. The KDC accepts kpasswd requests encrypted with any key known to it. By encrypting forged kpasswd requests with its own key, a user can change other users' passwords, enabling full domain takeover.

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

1.18%

Chance of exploitation in the next 30 days

Percentile

68%

Versus all other CVEs

30-day change

Increase +0.07 pp

From 1.12% 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.

Alpine1 product
  • samba≥ 4.3.0, < 4.15.12-r0 | ≥ 4.3.0, < 4.15.9-r0
Debian1 product
  • samba< 2:4.16.4+dfsg-1
Samba1 product
  • samba≥ 4.3.0, < 4.14.14 | ≥ 4.15.0, < 4.15.9 | ≥ 4.16.0, < 4.16.4
Ubuntu1 product
  • sambaAll versions (No fix recorded) | < 2:4.13.17~dfsg-0ubuntu1.20.04.1 | < 2:4.15.9+dfsg-0ubuntu0.2

4 vendors · 4 products

References

8 links