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CVE-2023-42813

15
FAUCET Score

CVE-2023-42813 is a denial-of-service vulnerability in Kyverno's Notary verifier, affecting Kyverno versions built from source at the main branch. An attacker with control over the registry could send a malicious response, causing Kyverno to cease processing admission requests. Rated Medium (CVSS 5.3), this vulnerability requires high attack complexity and user interaction, but has a high impact on availability. There is no evidence of active exploitation, public exploit code, or significant community discussion, and official Kyverno releases are not affected.

Impacted Technologies

VendorProductVersion(s)CPE
1.11.0CPE matchmatch criteria
cpe:2.3:a:nirmata:kyverno:1.11.0:-:*:*:*:go:*:*

CVSS Data

CVSS version used by this source: 3.1

6.1MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
1.6
Impact Score
4.0
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.66%
Probability of exploitation in next 30 days
EPSS Percentile
47.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0066 is in the 63rd percentile among its peer group of 705 CVEs.

Social Chatter

No social media mentions found for this CVE.

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

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.2 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

github_advisorypatch availablevia nvd_reference
View patch

References

github.com / kyverno/kyverno/commit/80d139bb5d1d9d7e907abe851b97dc73821a5be2
Patch
github.com / kyverno/kyverno/commit/fec2992e3f9fcd6b9c62267522c09b182e7df73b
Patch
github.com / kyverno/kyverno/pull/8428
Patch
github.com / kyverno/kyverno/security/advisories/GHSA-wc3x-5rfv-hh5v
Vendor Advisory