# CVE-2025-11935: With TLS 1.3 pre-shared key (PSK) a malicious or faulty server could ignore the request for PFS (perfect forward…

Source: https://junglewise.ai/threats/cve-2025-11935-with-tls-1-3-pre-shared-key-psk-a-malicious-or-faulty-server  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2025-11-21  
License: CC BY 4.0 with a link back

CVE-2025-11935 · Severity: high · CVSS 7.5 · Published 2025-11-21

With TLS 1.3 pre-shared key (PSK) a malicious or faulty server could ignore the request for PFS (perfect forward secrecy) and the client would continue on with the connection using PSK without PFS. This happened when a server responded to a ClientHello containing psk_dhe_ke without a key_share extension. The re-use of an authenticated PSK connection that on the clients side unexpectedly did not have PFS, reduces the security of the connection.

Technologies: [Apple macOS](https://junglewise.ai/threats/technologies/macos), [Linux Kernel](https://junglewise.ai/threats/technologies/kernel), [Wolfssl](https://junglewise.ai/threats/technologies/wolfssl). Vendors: [Apple](https://junglewise.ai/threats/vendors/apple), [Linux](https://junglewise.ai/threats/vendors/linux), [Wolfssl](https://junglewise.ai/threats/vendors/wolfssl).

## Quick answers

**Is CVE-2025-11935 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2025-11935 being exploited in the wild.

**How severe is CVE-2025-11935?** High severity, with a CVSS score of 7.5, published 21 November 2025.

**Which products and versions are affected?** Apple macOS, Linux Kernel, Wolfssl. The advisory does not name versions.

**Is there a fix for CVE-2025-11935?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**Am I affected by CVE-2025-11935?** Check whether you run Apple macOS, Linux Kernel or Wolfssl. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Affected products

- Apple macOS
- Linux Kernel
- Wolfssl

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