Is CVE-2021-21996 in the CISA KEV catalog?

No. CVE-2021-21996 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-21996?

CVE-2021-21996 has a CVSS v3 base score of 7.5 (HIGH).

What is the EPSS score for CVE-2021-21996?

CVE-2021-21996 has an EPSS score of 3.51% (88th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-21996?

Upgrade salt to 3000.3 or later.

CVE & CISA-KEV Catalog

CVE-2021-21996

HIGHEPSS 88th pctl

7.5

CVSS v3

NVD

Description

An issue was discovered in SaltStack Salt before 3003.3. A user who has control of the source, and source_hash URLs can gain full file system access as root on a salt minion.

How to fix

Remediation Available

saltNVD

Affected:< 3000.3Fixed in:3000.3CVE-2021-21996derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityHigh

Privileges RequiredLow

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

3.51%probability of exploitation in 30 days

88thpercentile

Elevated risk: more likely to be exploited than 88% of all known CVEs.

References

Patch1

saltproject.io

Third-Party Advisory7

Embed a live status badge for CVE-2021-21996

Markdown

[![CVE-2021-21996](https://tridentstack.com/cve/badge/CVE-2021-21996.svg)](https://tridentstack.com/cve/CVE-2021-21996)

HTML

<a href="https://tridentstack.com/cve/CVE-2021-21996"><img src="https://tridentstack.com/cve/badge/CVE-2021-21996.svg" alt="CVE-2021-21996"></a>

Find and fix vulnerabilities across your fleet

TridentStack Control continuously scans your Windows, macOS, and Linux fleet for known vulnerabilities, prioritizes them by severity and active exploitation, and patches them automatically.

Start free

This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.