What is CVE-2021-25315?

CVE-2021-25315 is a critical-severity vulnerability in Saltstack Salt, classified under Improper Authentication. CVSS score: 9.8/10. Published 2021-03-03.

How severe is CVE-2021-25315?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Auth bypass in Saltstack Salt

CVE-2021-25315

CWE - CWE-287: Improper Authentication vulnerability in SUSE Linux Enterprise Server 15 SP 3; openSUSE Tumbleweed allows local attackers to execute arbitrary code via salt without the need to specify valid credentials. This issue affects: SUSE Linux Enterprise Server 15 SP 3 salt versions prior to 3002.2-3. openSUSE Tumbleweed salt version 3002.2-2.1 and prior versions. This issue affects: SUSE Linux Enterprise Server 15 SP 3 salt versions prior to 3002.2-3. openSUSE Tumbleweed salt version 3002.2-2.1 and prior versions.

Vulnerability class: Broken Authentication

Published 2021-03-03 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.023 (82.9th percentile), scored 2026-10-01.

Low probability of exploitation in the next 30 days, but still tracked. 83rd percentile — 82.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.023 · newest: 0.023 · change: 0.000

Affected products

Saltstack Salt
openSUSE Tumbleweed — versions salt
SUSE Linux Enterprise Server — versions 15
SUSE Linux Enterprise Server 15 Sp 3 — versions salt

Weakness classification (CWE)

CWE-287 — Improper Authentication

References

bugzilla.suse.com/show_bug.cgi (Issue Tracking, Vendor Advisory)

Frequently asked questions

What is CVE-2021-25315?: CVE-2021-25315 is a critical-severity vulnerability in Saltstack Salt, classified under Improper Authentication. CVSS score: 9.8/10. Published 2021-03-03.
How severe is CVE-2021-25315?: Critical severity. CVSS v3 base score is 9.8 out of 10.