CVE-2022-37966: fedoraproject fedora
CVSS: 8.1v3.1HighModified
AliasesALPINE-CVE-2022-37966UBUNTU-CVE-2022-37966DEBIAN-CVE-2022-37966CGA-2xrf-cvp6-vqw4CGA-pfqv-8cgj-2x2w
Published 09-11-2022Last modified 10-08-2026
Vulnerability summary
CVE-2022-37966 is a high (CVSS 8.1) vulnerability in fedoraproject fedora. EPSS estimates a 2.53% chance of exploitation in the next 30 days, higher than 84.6% of scored vulnerabilities.
CVSS score
8.1/10
010
High · v3.1 (CVE.org)EPSS score
2.53%
0%100%
Low · +0.01 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Advisory lineage
Upstream 0 · Downstream 12 · Related 14Timeline
- 09-11-2022PublishedVulnerability first disclosed.
- 10-08-2026Last modifiedVulnerability information updated.
Description
Windows Kerberos RC4-HMAC Elevation of Privilege Vulnerability
CVSS metrics
7 scores · 7 sources · 1 versionHigh 8.1Preferred score · CVE.org (CNA)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:CSourcesAll 7 agree
- OSV · AlpineEcosystem advisory · calculated8.1HighCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
- OSV · UbuntuEcosystem advisory · calculated8.1HighCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated8.1HighCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
- OSV · WolfiEcosystem advisory · calculated8.1HighCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
- OSV · ChainguardEcosystem advisory · calculated8.1HighCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
- NVDNIST8.1HighCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS trend
Probability
2.53%
Chance of exploitation in the next 30 days
Percentile
85%
Versus all other CVEs
30-day change
+0.01 pp
From 2.52% on 18-09-2026
18-09-202618-10-2026
EPSS score2.53%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeNo weakness data has been published for this record.
Affected systems
Microsoft15 products
- windows_server_2008na | r2:sp1
- windows server 2008 service pack 2-
- windows server 2008 r2 service pack 1-
- windows server 2008 r2 service pack 1 (server core installation)-
- windows server 2008 service pack 2-
Netapp2 products
Alpine1 product
- samba≥ 4.16.0, < 4.15.13-r0
Chainguard1 product
- libauth-samba< 4.22.0-r0
Debian1 product
- samba< 2:4.17.4+dfsg-1
Fedoraproject1 product
- fedoraEOL36 | 37
Samba1 product
- samba< 4.15.13 | ≥ 4.16.0, < 4.16.8 | ≥ 4.17.0, < 4.17.4
Ubuntu1 product
- sambaAll versions (No fix recorded) | < 2:4.15.13+dfsg-0ubuntu0.20.04.1 | < 2:4.15.13+dfsg-0ubuntu1
Wolfi1 product
- libauth-samba< 4.22.0-r0
9 vendors · 24 products