SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityAnalyzed

CVE-2020-16846

SaltStack Salt Shell Injection Vulnerability

KEVCRITICAL 9.8EPSS 99.6%

Does this matter?

Known to be exploited in the wild (CISA KEV, CISA remediation deadline 3 May 2022). Treat as an emergency change: patch or isolate now, then hunt for prior compromise.

Description

An issue was discovered in SaltStack Salt through 3002. Sending crafted web requests to the Salt API, with the SSH client enabled, can result in shell injection.

CVSS 3.1
9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
99.59% probability · 100th percentile
Public exploits
None in Exploit-DB
CISA KEV
Listed 3 November 2021 · due 3 May 2022
Weakness
CWE-78
Affected
saltstack/salt · debian/debian linux · fedoraproject/fedora · opensuse/leap
Source
cve@mitre.org
EPSS trend
0%50%100%26 October 2026: 99.59%26 October 202626 October 2026

EPSS 99.6% since 26 October 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

CISA notes

Apply updates per vendor instructions. https://nvd.nist.gov/vuln/detail/CVE-2020-16846

References

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.