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CVE-2024-45807

22
FAUCET Score

CVE-2024-45807 describes a critical vulnerability in Envoy proxy versions 1.31, where the default use of the oghttp2 codec can lead to a crash due to stream management bugs. This unauthenticated denial-of-service vulnerability carries a CVSS score of 7.5 (HIGH), indicating it can be exploited remotely with low attack complexity, resulting in a complete loss of availability. While there are no known workarounds, the issue has been addressed in Envoy version 1.31.2, and users are strongly advised to upgrade. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
>= 1.31.0, < 1.31.2CPE matchmatch criteria
cpe:2.3:a:envoyproxy:envoy:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

7.5HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.50%
Probability of exploitation in next 30 days
EPSS Percentile
39.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0050 is in the 18th percentile among its peer group of 51,553 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 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 (5)

github_advisoryvendor investigatingvia nvd_reference
View patch
redhatno patchvia redhat_api
Product: OpenShift Service Mesh 2Fixed in: openshift-service-mesh/istio-cni-rhel8
redhatno patchvia redhat_api
Product: OpenShift Service Mesh 2Fixed in: openshift-service-mesh/pilot-rhel8
redhatno patchvia redhat_api
Product: OpenShift Service Mesh 2Fixed in: openshift-service-mesh/proxyv2-rhel8
redhatno patchvia redhat_api
Product: OpenShift Service Mesh 2Fixed in: openshift-service-mesh/proxyv2-rhel9

Vendor Advisories (1)

redhatCVE-2024-45807Moderate

envoy: Oghttp2 crash on `OnBeginHeadersForStream`

Sep 20, 2024

References

github.com / envoyproxy/envoy/security/advisories/GHSA-qc52-r4x5-9w37
Vendor Advisory