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CVE-2021-40376

24
FAUCET Score

CVE-2021-40376 affects otris Update Manager 1.2.1.0, allowing local users to gain SYSTEM privileges through unauthenticated calls to exposed .NET named pipe interfaces. Remote exploitation is also possible via WsHTTPBinding on TCP port 9000. With a CVSS score of 7.8 (High), this vulnerability presents a significant risk due to its low attack complexity and high impact on confidentiality, integrity, and availability. There is currently no evidence of active exploitation, nor are there publicly available exploit modules or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
1.2.1.0CPE matchmatch criteria
cpe:2.3:a:otris:update_manager:1.2.1.0:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.8HIGH

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.40%
Probability of exploitation in next 30 days
EPSS Percentile
32.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0040 is in the 71st percentile among its peer group of 17,061 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

otris.com
Vendor Advisory
tuv.com / content-media-files/master-content/global-landingpages/images/vulnerability-disclosure/tuv-rheinland-security-advisory-local-privilege-escalation-vulnerability-in-otris-update-manager.pdf
ExploitThird Party Advisory
tuv.com / landingpage/en/vulnerability-disclosure
Third Party Advisory