CVE-2025-59693 Security feature bypass in n/a

Critical 9.8 Published 2 Dec 2025 Updated 26 Aug 2026

Physically proximate attackers can bypass tamper labels and access JTAG connectors on nShield HSMs to escalate privileges and obtain debug access.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2025-59693?

CVE-2025-59693 is a critical vulnerability in n/a, published on 2 Dec 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

The Chassis Management Board in Entrust nShield Connect XC, nShield 5c, and nShield HSMi through 13.6.11, or 13.7 (patched in 13.6.12 (LTS) and 13.9.0 (STS)), allows a physically proximate attacker to obtain debug access and escalate privileges by bypassing the tamper label and opening the chassis without leaving evidence, and accessing the JTAG connector. This is called F02.

Weakness: CWE-269

Which versions are affected by CVE-2025-59693?

It affects 5 products.

Products include Entrust Nshield 5c Firmware, Entrust Nshield Connect Xc Base Firmware, Entrust Nshield Connect Xc High Firmware, Entrust Nshield Connect Xc Mid Firmware, Entrust Nshield Hsmi Firmware.

How do I fix CVE-2025-59693?

No fix has been published for CVE-2025-59693 yet. Limit exposure of the affected software until one is available.

Is CVE-2025-59693 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2025-59693 exists.

Sources

Also known as GHSA-j3px-xpp5-mpfc.