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CVE-2026-21765

28
FAUCET Score

CVE-2026-21765 identifies a high-severity vulnerability in HCL BigFix Platform, where private cryptographic keys on Windows host machines are susceptible to overly permissive file system permissions. Rated 8.8 CVSS (High), this flaw allows a local attacker with low privileges and no user interaction to achieve high impact on confidentiality, integrity, and availability by accessing these critical keys. While the potential impact is significant, there is currently no evidence of active exploitation, public exploit code, or widespread community discussion, and it is not listed in CISA's Known Exploited Vulnerabilities catalog.

Impacted Technologies

VendorProductVersion(s)CPE
>= 11.0.0, <= 11.0.5CPE matchmatch criteria
cpe:2.3:a:hcltech:bigfix_platform:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.8HIGH

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
CHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.0
Impact Score
6.0
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.10%
Probability of exploitation in next 30 days
EPSS Percentile
1.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0010 is in the 5th percentile among its peer group of 16,994 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

support.hcl-software.com / csm
Vendor Advisory