PT-2025-47812 · Tls 1.3+1 · Tls 1.3+1

Published 2025-11-21 · Updated 2025-11-22 · CVE-2025-11935

Positive Technologies (AI Summary)

CVSS v3.1

7.5

High

Base vector

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

Name of the Vulnerable Software and Affected Versions TLS 1.3 (affected versions not specified)

Description A server utilizing TLS 1.3 pre-shared key (PSK) may disregard a client’s request for perfect forward secrecy (PFS). This occurs when a server responds to a ClientHello containing psk dhe ke without a key share extension. Consequently, the client proceeds with the connection using PSK without PFS, potentially reducing the security of the connection. The re-use of an authenticated PSK connection lacking expected PFS diminishes connection security.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Inadequate Encryption Strength

Weakness Enumeration

CWE-326

Related Identifiers

CVE-2025-11935

Affected Products

Debian

Tls 1.3

References · 12

• https://github.com/wolfSSL/wolfssl/pull/9112 · Patch
• https://osv.dev/vulnerability/DEBIAN-CVE-2025-11935 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2025-11935 · Security Note
• https://security-tracker.debian.org/tracker/CVE-2025-11935 · Vendor Advisory
• https://ubuntu.com/security/CVE-2025-11935 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2025-11935 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2025-11935 · Security Note
• https://osv.dev/vulnerability/CVE-2025-11935 · Vendor Advisory
• https://github.com/wolfSSL/wolfssl · Note
• https://twitter.com/VulmonFeeds/status/1992093120750592455 · Twitter Post
• https://t.me/CVEtracker/37976 · Telegram Post
• https://twitter.com/CVEnew/status/1991999025164456346 · Twitter Post