CVE-2020-25722: canonical ubuntu_linux Incorrect Authorization
Vulnerability summary
CVE-2020-25722 is a high (CVSS 8.8) Incorrect Authorization vulnerability in canonical ubuntu_linux. EPSS estimates a 1.61% chance of exploitation in the next 30 days, higher than 75.9% of scored vulnerabilities.
Not severe (CVSS 8.8, network access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 8 · Related 6Timeline
- 18-02-2022PublishedVulnerability first disclosed.
- 04-08-2024Last modifiedVulnerability information updated.
Description
Multiple flaws were found in the way samba AD DC implemented access and conformance checking of stored data. An attacker could use this flaw to cause total domain compromise.
CVSS metrics
5 scores · 4 sources · 2 versions- OSV · AlpineEcosystem advisory · calculated8.8HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- OSV · UbuntuEcosystem advisory · calculated8.8HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- OSV · DebianEcosystem advisory · calculated8.8HighCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS trend
Probability
1.61%
Chance of exploitation in the next 30 days
Percentile
76%
Versus all other CVEs
30-day change
No change 0.00 pp
From 1.61% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: network-reachable, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.
Debian2 products
- samba< 2:4.13.14+dfsg-1
- debian_linuxEOL9.0 | 10.0
Alpine1 product
- samba≥ 4.0.0, < 4.13.17-r0 | ≥ 4.0.0, < 4.14.12-r0 | ≥ 4.0.0, < 4.15.2-r0
Canonical1 product
- ubuntu_linuxEOL18.04 | 20.04 | 21.04 | 21.10
Fedoraproject1 product
- fedoraEOL33 | 34 | 35
Samba1 product
- samba≥ 4.0.0, < 4.13.14 | ≥ 4.14.0, < 4.14.10 | ≥ 4.15.0, < 4.15.2
Ubuntu1 product
- sambaAll versions (No fix recorded) | < 2:4.7.6+dfsg~ubuntu-0ubuntu2.26 | < 2:4.13.14+dfsg-0ubuntu0.20.04.1 | < 2:4.13.14+dfsg-0ubuntu1
6 vendors · 7 products
References
11 links- security.gentoo.org/glsa/202309-06Vendor Advisory
