Is CVE-2021-22539 in the CISA KEV catalog?

No. CVE-2021-22539 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-22539?

CVE-2021-22539 has a CVSS v3 base score of 8.2 (HIGH).

What is the EPSS score for CVE-2021-22539?

CVE-2021-22539 has an EPSS score of 0.31% (23th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-22539?

Upgrade bazel to 0.4.1 or later.

CVE & CISA-KEV Catalog

CVE-2021-22539

HIGH

8.2

CVSS v3

NVD

Description

An attacker can place a crafted JSON config file into the project folder pointing to a custom executable. VScode-bazel allows the workspace path to lint *.bzl files to be set via this config file. As such the attacker is able to execute any executable on the system through vscode-bazel. We recommend upgrading to version 0.4.1 or above.

CWE-73External Control of File Name or Path CWE-668

How to fix

Remediation Available

bazelNVD

Affected:>= 0.1.0, < 0.4.1Fixed in:0.4.1CVE-2021-22539derived 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 VectorLocal

Attack ComplexityLow

Privileges RequiredLow

User InteractionRequired

ScopeChanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

0.31%probability of exploitation in 30 days

23rdpercentile

Low risk: more likely to be exploited than 23% of all known CVEs.

References

Third-Party Advisory1

github.com

Other references1

github.com

Related Vulnerabilities

Other CWE-73 (External Control of File Name or Path) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2022-39952	Critical	9.8	100%	-	Fix
CVE-2024-8517	Critical	9.8	95%	-	Fix
CVE-2023-4634	Critical	9.8	83%	-	Fix
CVE-2018-17246	Critical	9.8	82%	-	Fix
CVE-2024-43451	Medium	6.5	82%	KEV	Fix
CVE-2025-33053	High	8.8	82%	KEV	Fix

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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.