CVE-2025-11936

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Source
https://cve.org/CVERecord?id=CVE-2025-11936
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-11936.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2025-11936
Downstream
Published
2025-11-21T23:15:44.710Z
Modified
2026-03-14T12:41:23.431766Z
Severity
  • 5.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L CVSS Calculator
Summary
[none]
Details

Improper input validation in the TLS 1.3 KeyShareEntry parsing in wolfSSL v5.8.2 on multiple platforms allows a remote unauthenticated attacker to cause a denial-of-service by sending a crafted ClientHello message containing duplicate KeyShareEntry values for the same supported group, leading to excessive CPU and memory consumption during ClientHello processing.

References

Affected packages

Git / github.com/wolfssl/wolfssl

Affected ranges

Type
GIT
Repo
https://github.com/wolfssl/wolfssl
Events
Introduced
decea12e223869c8f8f3ab5a53dc90b69f436eb2
Fixed
59f4fa568615396fbf381b073b220d1e8d61e4c2
Database specific 
{
    "versions": [
        {
            "introduced": "5.8.2"
        },
        {
            "fixed": "5.8.4"
        }
    ]
}

Affected versions

v5.*
v5.8.2-stable

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-11936.json"