No exploitation reportedFix available

CVE-2021-40988

Q: Is CVE-2021-40988 actively exploited?

Active exploitation of CVE-2021-40988 has not been confirmed. Its EPSS score was 3.9% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

Q: What is the CVSS score for CVE-2021-40988?

CVE-2021-40988 has a CVSS v3 base score of 7.2 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.

No exploitation reported by the sources we read.

Published2021-10-15
Fixed in6.10.2 · 6.9.7 · 6.8.9
WeaknessCWE-22

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

A remote directory traversal vulnerability was discovered in Aruba ClearPass Policy Manager version(s): ClearPass Policy Manager 6.10.x prior to 6.10.2 - - ClearPass Policy Manager 6.9.x prior to 6.9.7-HF1 - - ClearPass Policy Manager 6.8.x prior to 6.8.9-HF1. Aruba has released patches for ClearPass Policy Manager that address this security vulnerability.

Timeline

dates in UTC

2021-10-1514:15CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 21:37 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2021-40988?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2021-40988?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD

Arubanetworks clearpass policy manager

Branch	Affected	Fixed in	Source
6.10	≥ 6.10.0, < 6.10.2	6.10.2	NVD
6.9	≥ 6.9.0, < 6.9.7	6.9.7	NVD
6.8	≥ 6.8.0, < 6.8.9	6.8.9	NVD
6.8	= 6.8.9	no fix published	NVD
6.9	= 6.9.7	no fix published	NVD

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

Update Arubanetworks clearpass policy manager to 6.10.2 · 6.9.7 · 6.8.9

Advisories and patches

www.arubanetworks.comVendor Advisory

Detection

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: none listed

Sources

NVDCVSS 3.17.2read 2026-10-23
NVDCVSS 2.09read 2026-10-23
NVDweakness (CWE)CWE-22read 2026-10-23
FIRST EPSSEPSS score3.9 %2026-10-22

Technical details

CVSS v3 Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Published: 2021-10-15
Last Modified: 2026-06-17
NVD status: Modified

Frequently asked questions

What is CVE-2021-40988?

Is CVE-2021-40988 actively exploited?

Active exploitation of CVE-2021-40988 has not been confirmed. Its EPSS score was 3.9% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2021-40988?

CVE-2021-40988 has a CVSS v3 base score of 7.2 (HIGH severity), with vector string CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.

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