CVE-2022-45141: samba Use of Weak Hash
CVSS: 9.8v3.1CriticalModified
AliasesALPINE-CVE-2022-45141UBUNTU-CVE-2022-45141DEBIAN-CVE-2022-45141
Published 06-03-2023Last modified 06-03-2025
Vulnerability summary
CVE-2022-45141 is a critical (CVSS 9.8) Use of Weak Hash vulnerability in samba. EPSS estimates a 0.45% chance of exploitation in the next 30 days, higher than 38.1% of scored vulnerabilities.
CVSS score
9.8/10
010
Critical · v3.1 (CVE.org)EPSS score
0.45%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Advisory lineage
Upstream 0 · Downstream 4 · Related 4Timeline
- 06-03-2023PublishedVulnerability first disclosed.
- 06-03-2025Last modifiedVulnerability information updated.
Description
Since the Windows Kerberos RC4-HMAC Elevation of Privilege Vulnerability was disclosed by Microsoft on Nov 8 2022 and per RFC8429 it is assumed that rc4-hmac is weak, Vulnerable Samba Active Directory DCs will issue rc4-hmac encrypted tickets despite the target server supporting better encryption (eg aes256-cts-hmac-sha1-96).
CVSS metrics
5 scores · 5 sources · 1 versionCritical 9.8Preferred score · CVE.org (CNA)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HSourcesAll 5 agree
- OSV · AlpineEcosystem advisory · calculated9.8CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- OSV · UbuntuEcosystem advisory · calculated9.8CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated9.8CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- NVDNIST9.8CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS trend
Probability
0.45%
Chance of exploitation in the next 30 days
Percentile
38%
Versus all other CVEs
30-day change
0.00 pp
From 0.45% on 20-09-2026
20-09-202620-10-2026
EPSS score0.45%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root cause- CWE-328Use of Weak HashThe product uses an algorithm that produces a digest (output value) that does not meet security expectations for a hash function that allows an adversary to reasonably determine the original input (preimage attack), find another input that can produce the same hash (2nd preimage attack), or find multiple inputs that evaluate to the same hash (birthday attack).
- CWE-326Inadequate Encryption StrengthThe product stores or transmits sensitive data using an encryption scheme that is theoretically sound, but is not strong enough for the level of protection required.
Affected systems
Alpine1 product
- samba≥ 4.16.0, < 4.15.13-r0
Debian1 product
- samba< 2:4.16.0+dfsg-2
Samba1 product
- samba< 4.15.13 | ≥ 4.16.0, < 4.16.8
Ubuntu1 product
- samba< 2:4.3.11+dfsg-0ubuntu0.16.04.34+esm2 | < 2:4.7.6+dfsg~ubuntu-0ubuntu2.29+esm1 | < 2:4.15.13+dfsg-0ubuntu0.20.04.1 | < 2:4.15.13+dfsg-0ubuntu1
4 vendors · 4 products
References
11 links- security.gentoo.org/glsa/202309-06Vendor Advisory
