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CVE-2021-25283

35
FAUCET Score

CVE-2021-25283 is a critical server-side template injection vulnerability in SaltStack Salt versions prior to 3002.5, impacting various distributions including Debian and Fedora. This flaw, rated 9.8 CVSS, allows unauthenticated attackers to execute arbitrary code with high impact on confidentiality, integrity, and availability. While no public exploits (Metasploit, Nuclei, ExploitDB) or active exploitation (KEV) have been identified, and community discussion is minimal, its high FAUCET Risk Score of 86/100 indicates significant potential danger.

Impacted Technologies

VendorProductVersion(s)CPE
< 2015.8.10CPE matchmatch criteria
cpe:2.3:a:saltstack:salt:*:*:*:*:*:*:*:*
>= 2015.8.11, < 2015.8.13CPE matchmatch criteria
cpe:2.3:a:saltstack:salt:*:*:*:*:*:*:*:*
>= 2016.3.0, < 2016.3.4CPE matchmatch criteria
cpe:2.3:a:saltstack:salt:*:*:*:*:*:*:*:*
>= 2016.3.5, < 2016.3.6CPE matchmatch criteria
cpe:2.3:a:saltstack:salt:*:*:*:*:*:*:*:*
>= 2016.3.7, < 2016.3.8CPE matchmatch criteria
cpe:2.3:a:saltstack:salt:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
10.43%
Probability of exploitation in next 30 days
EPSS Percentile
95.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.1043 is in the 91st percentile among its peer group of 36,862 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (9)

pippatch availablevia ghsa
Product: saltFixed in: 2015.8.13
pippatch availablevia ghsa
Product: saltFixed in: 2016.11.5
pippatch availablevia ghsa
Product: saltFixed in: 2016.11.10
pippatch availablevia ghsa
Product: saltFixed in: 2017.7.8
pippatch availablevia ghsa
Product: saltFixed in: 2019.2.8
pippatch availablevia ghsa
Product: saltFixed in: 3000.7
pippatch availablevia ghsa
Product: saltFixed in: 3001.5
pippatch availablevia ghsa
Product: saltFixed in: 3002.5
redhatend of lifevia redhat_api
Product: Red Hat Ceph Storage 2Fixed in: salt

Vendor Advisories (2)

pipGHSA-xgmh-gfxw-2hvvcritical

SaltStack Salt Server Side Template Injection

May 24, 2022
redhatCVE-2021-25283Important

salt: Jinja renderer does not protect against server-side template injection attacks

Feb 25, 2021

References

github.com / saltstack/salt/releases
Third Party Advisory
lists.debian.org / debian-lts-announce/2021/11/msg00009.html
Mailing ListThird Party Advisory
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/7GRVZ5WAEI3XFN2BDTL6DDXFS5HYSDVB
Mailing ListThird Party Advisory
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/FUGLOJ6NXLCIFRD2JTXBYQEMAEF2B6XH
Mailing ListThird Party Advisory
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/YOGNT2XWPOYV7YT75DN7PS4GIYWFKOK5
Mailing ListThird Party Advisory
saltproject.io / security_announcements/active-saltstack-cve-release-2021-feb-25
Vendor Advisory
security.gentoo.org / glsa/202103-01
Third Party Advisory
security.gentoo.org / glsa/202310-22
Third Party Advisory
debian.org / security/2021/dsa-5011
Third Party Advisory