CVE-2026-87021

Q: How do I fix CVE-2026-87021?

Upgrade comply to 2.32.252 or later.

Q: Is CVE-2026-87021 being actively exploited?

Not that we know of. CVE-2026-87021 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 0.37% is the estimated probability that it will be exploited in the next 30 days. That is higher than 30% of all scored CVEs.

Q: How severe is CVE-2026-87021?

CVE-2026-87021 has a CVSS v3 base score of 7.2, rated high. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

Q: What does CVE-2026-87021 affect?

Published advisories record a fix for comply (NVD). Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.

HIGH

7.2

CVSS v3

NVD

Description

Tanium addressed an unauthorized code execution vulnerability in Comply.

CWE-1336

How to fix

Remediation Available

complyNVD

Affected:>= 2.32.0, < 2.32.252Fixed in:2.32.252CVE-2026-87021derived from NVD

Affected:>= 2.35.0, < 2.35.306Fixed in:2.35.306CVE-2026-87021derived from NVD

Affected:>= 2.37.0, < 2.37.308Fixed in:2.37.308CVE-2026-87021derived from NVD

TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works

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 ComplexityLow

Privileges RequiredHigh

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

0.37%probability of exploitation in 30 days

30thpercentile

Low risk: more likely to be exploited than 30% of all known CVEs.

References

Vendor Advisory1

security.tanium.com

Related Vulnerabilities

Other CWE-1336 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2024-4040	Critical	9.8	100%	KEV	Fix
CVE-2024-23692	Critical	9.8	99%	KEV + Ransom	-
CVE-2025-47916	Critical	10.0	84%	-	Fix
CVE-2024-32651	Critical	10.0	84%	-	Fix
CVE-2025-34300	Critical	10.0	79%	-	-
CVE-2022-25813	High	7.5	67%	-	Fix

Common questions

How do I fix CVE-2026-87021?

Upgrade comply to 2.32.252 or later.

Is CVE-2026-87021 being actively exploited?

Not that we know of. CVE-2026-87021 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 0.37% is the estimated probability that it will be exploited in the next 30 days. That is higher than 30% of all scored CVEs.

How severe is CVE-2026-87021?

CVE-2026-87021 has a CVSS v3 base score of 7.2, rated high. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

What does CVE-2026-87021 affect?

Published advisories record a fix for comply (NVD). Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.

Embed a live status badge for CVE-2026-87021

Markdown

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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 2026-09-16.