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CVE-2024-11738

20
FAUCET Score

CVE-2024-11738 is a denial-of-service vulnerability affecting Rustls 0.23.13 and related APIs. An unauthenticated attacker can trigger a panic in affected systems by sending a specially crafted, fragmented TLS ClientHello message. This vulnerability has a CVSS score of 7.5 (HIGH), indicating a significant impact on availability, but it does not compromise confidentiality or integrity. Currently, there is no evidence of active exploitation, nor are there publicly available exploit tools or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
0.23.13CPE matchmatch criteria
cpe:2.3:a:rustls_project:rustls:0.23.13:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.3MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
LOW
Exploitability Score
3.9
Impact Score
1.4
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.71%
Probability of exploitation in next 30 days
EPSS Percentile
49.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0071 is in the 26th percentile among its peer group of 51,551 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

Patch Available

Vendor Patches (6)

microsoftpatch availablevia msrc
Product: 20424-17084Fixed in: 1.86.0-6
microsoftpatch availablevia msrc
Product: 20141-17084Fixed in: 1.86.0-5
microsoftpatch availablevia msrc
Product: azl3 rust 1.86.0-6 on Azure Linux 3.0Fixed in: 1.86.0-6
microsoftpatch availablevia msrc
Product: azl3 rust 1.86.0-4 on Azure Linux 3.0Fixed in: 1.86.0-5
github_advisoryvendor investigatingvia nvd_reference
View patch
redhatvendor investigatingvia nvd_reference
View patch

Vendor Advisories (2)

microsoft2024-Dec/CVE-2024-11738Moderate

Rustls: rustls network-reachable panic in `acceptor::accept`

Dec 10, 2024
redhatCVE-2024-11738Moderate

rustls: rustls network-reachable panic in `Acceptor::accept`

Nov 25, 2024

References

access.redhat.com / security/cve/CVE-2024-11738
Vendor Advisory
bugzilla.redhat.com / show_bug.cgi
Vendor Advisory
github.com / advisories/GHSA-qg5g-gv98-5ffh
Third Party Advisory
github.com / rustls/rustls
Product
github.com / rustls/rustls/issues/2227
ExploitIssue TrackingVendor Advisory
rustsec.org / advisories/RUSTSEC-2024-0399.html
Vendor Advisory