Free and open · new CVEs checked every 20 minutesStatusRSSOpen dataContact

CVE-2025-59697: Entrust nShield Connect XC, nShield 5c, and nShield HSMi through 13.6.11, or 13.7 (patched in 13.6.12 (LTS) an

36
Routine
HIGH 7.2UPGRADEUPGRADEUPGRADE

CVE-2025-59697 is a high-severity flaw (CVSS 7.2) affecting nshield 5c firmware, nshield hsmi firmware, nshield connect xc base firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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)), allow a physically proximate attacker to escalate privileges by editing the Legacy GRUB bootloader configuration to start a root shell upon boot of the host OS. This is called F06.

Why this priority

  • High severity
  • Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score7.2 (High)
Attack vectorPhysical
Attack complexityLow
Privileges neededHigh
User interactionNone
EPSS exploit chance0.3% (top 76%)
CISA exploited listNo
WeaknessCWE-269, CWE-284
Published2025-12-02
Last modified2026-08-26
Publisher (CNA): MITRE · Vendor: entrust

Share: LinkedIn · X · Reddit

Last updated 2026-08-26 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

entrust nshield 5c firmware UPGRADE
Affected: < 13.6.12 · >= 13.7 and < 13.9.0
Fixed in: 13.6.12, 13.9.0
Safe to downgrade to: a release before 13.7
Check your OS release
cat /etc/os-release; uname -r
Debian / Ubuntu
sudo apt update && sudo apt full-upgrade
RHEL / Amazon Linux / Fedora
sudo dnf upgrade --refresh
Windows
Install the latest cumulative update from Windows Update
If no patch exists yet
OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.
entrust nshield hsmi firmware UPGRADE
Affected: < 13.6.12 · >= 13.7 and < 13.9.0
Fixed in: 13.6.12, 13.9.0
Safe to downgrade to: a release before 13.7
Check your OS release
cat /etc/os-release; uname -r
Debian / Ubuntu
sudo apt update && sudo apt full-upgrade
RHEL / Amazon Linux / Fedora
sudo dnf upgrade --refresh
Windows
Install the latest cumulative update from Windows Update
If no patch exists yet
OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.
entrust nshield connect xc base firmware UPGRADE
Affected: < 13.6.12 · >= 13.7 and < 13.9.0
Fixed in: 13.6.12, 13.9.0
Safe to downgrade to: a release before 13.7
Check your OS release
cat /etc/os-release; uname -r
Debian / Ubuntu
sudo apt update && sudo apt full-upgrade
RHEL / Amazon Linux / Fedora
sudo dnf upgrade --refresh
Windows
Install the latest cumulative update from Windows Update
If no patch exists yet
OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.
entrust nshield connect xc mid firmware UPGRADE
Affected: < 13.6.12 · >= 13.7 and < 13.9.0
Fixed in: 13.6.12, 13.9.0
Safe to downgrade to: a release before 13.7
Check your OS release
cat /etc/os-release; uname -r
Debian / Ubuntu
sudo apt update && sudo apt full-upgrade
RHEL / Amazon Linux / Fedora
sudo dnf upgrade --refresh
Windows
Install the latest cumulative update from Windows Update
If no patch exists yet
OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.
entrust nshield connect xc high firmware UPGRADE
Affected: < 13.6.12 · >= 13.7 and < 13.9.0
Fixed in: 13.6.12, 13.9.0
Safe to downgrade to: a release before 13.7
Check your OS release
cat /etc/os-release; uname -r
Debian / Ubuntu
sudo apt update && sudo apt full-upgrade
RHEL / Amazon Linux / Fedora
sudo dnf upgrade --refresh
Windows
Install the latest cumulative update from Windows Update
If no patch exists yet
OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.
Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2025-59697?

nshield 5c firmware: upgrade to 13.6.12, 13.9.0; nshield hsmi firmware: upgrade to 13.6.12, 13.9.0; nshield connect xc base firmware: upgrade to 13.6.12, 13.9.0. Exact commands for each OS are on this page.

Is CVE-2025-59697 being exploited?

CVE-2025-59697 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2025-59697 affect?

CVE-2025-59697 affects nshield 5c firmware, nshield hsmi firmware, nshield connect xc base firmware. Severity is high (CVSS 7.2). 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)), allow a physically proximate attacker to escalate privileges by editing the Legacy GRUB bootloader configuration

How urgent is CVE-2025-59697?

Priority 36/100. High severity; Public exploit reference

Related CVEs

References

← Back to latest CVEs

Get the weekly exploited-CVE digest by emailThe CVEs being attacked this week and how to fix them. No spam, unsubscribe any time.