CVE-2015-1878: Thales nShield Connect hardware models 500, 1500, 6000, 500+, 1500+, and 6000+ before 11.72 allows physically

Q: How do I fix CVE-2015-1878?

nshield connect firmware: upgrade to newer than 11.30. Exact commands for each OS are on this page.

Q: Is CVE-2015-1878 being exploited?

CVE-2015-1878 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2015-1878 affect?

CVE-2015-1878 affects nshield connect firmware. Severity is medium (CVSS 6.8). Thales nShield Connect hardware models 500, 1500, 6000, 500+, 1500+, and 6000+ before 11.72 allows physically proximate attackers to sign arbitrary data with previously loaded signing keys, extract the device identification key [KNETI] and

Q: How urgent is CVE-2015-1878?

Priority 31/100. No elevated risk signals yet.

Routine

MEDIUM 6.8UPGRADE

CVE-2015-1878 is a medium-severity flaw (CVSS 6.8) affecting nshield connect firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Thales nShield Connect hardware models 500, 1500, 6000, 500+, 1500+, and 6000+ before 11.72 allows physically proximate attackers to sign arbitrary data with previously loaded signing keys, extract the device identification key [KNETI] and impersonate the nShield Connect device on a network, affect the integrity and confidentiality of newly created keys, and potentially cause other unspecified impacts using previously loaded keys by connecting to

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	6.8 (Medium)
Attack vector	Physical
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.3% (top 72%)
CISA exploited list	No
Weakness	CWE-264
Published	2017-08-18
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: thalesesecurity

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2017-08-18 16:29 UTCPublished CVE record published
2026-06-17 00:23 UTCUpdated Record last modified

thalesesecurity nshield connect firmware UPGRADE

Affected: <= 11.30

Fixed in: newer than 11.30

Safe to downgrade to: no unaffected older release

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-2015-1878?

nshield connect firmware: upgrade to newer than 11.30. Exact commands for each OS are on this page.

Is CVE-2015-1878 being exploited?

CVE-2015-1878 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-2015-1878 affect?

CVE-2015-1878 affects nshield connect firmware. Severity is medium (CVSS 6.8). Thales nShield Connect hardware models 500, 1500, 6000, 500+, 1500+, and 6000+ before 11.72 allows physically proximate attackers to sign arbitrary data with previously loaded signing keys, extract the device identification key [KNETI] and

How urgent is CVE-2015-1878?

Priority 31/100. No elevated risk signals yet.

References

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