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CVE-2025-0752

20
FAUCET Score

CVE-2025-0752 is a high-severity vulnerability (CVSS 7.1) affecting OpenShift Service Mesh versions 2.6.3 and 2.5.6. The flaw stems from improper HTTP header sanitization in Envoy, potentially leading to rate-limiter avoidance, access-control bypass, CPU/memory exhaustion, and replay attacks. While the attack vector is network-based and low complexity, it requires low privileges and can result in significant availability impact. Currently, there is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
2.5.6CPE matchmatch criteria
cpe:2.3:a:redhat:openshift_service_mesh:2.5.6:*:*:*:*:*:*:*
2.6.3CPE matchmatch criteria
cpe:2.3:a:redhat:openshift_service_mesh:2.6.3:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.1HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
LOW
Availability Impact
LOW
Exploitability Score
2.8
Impact Score
4.2
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.40%
Probability of exploitation in next 30 days
EPSS Percentile
32.2%
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 20th percentile among its peer group of 17,844 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.3 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 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (2)

redhatvendor investigatingvia nvd_reference
View patch
redhatno patchvia redhat_api
Product: OpenShift Service Mesh 2Fixed in: openshift-service-mesh/proxyv2-rhel8

Vendor Advisories (1)

redhatCVE-2025-0752Important

envoyproxy: OpenShift Service Mesh Envoy HTTP Header Sanitization Bypass Leading to DoS and Unauthorized Access

Jan 21, 2025

References

access.redhat.com / security/cve/CVE-2025-0752
Vendor Advisory
bugzilla.redhat.com / show_bug.cgi
Vendor Advisory