CVE-2018-19589: Incorrect Access Controls of Security Officer (SO) in PKCS11 R2 provider that ships with the Utimaco CryptoSer

This month

MEDIUM 6.5MITIGATE

CVE-2018-19589 is a medium-severity flaw (CVSS 6.5) affecting securityserver cse firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Incorrect Access Controls of Security Officer (SO) in PKCS11 R2 provider that ships with the Utimaco CryptoServer HSM product package allows an SO authenticated to a slot to retrieve attributes of keys marked as private keys in external key storage, and also delete keys marked as private keys in external key storage. This compromises the availability of all keys configured with external key storage and may result in an economic attack in which th

Why this priority

Public exploit reference

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	6.5 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.7% (top 48%)
CISA exploited list	No
Weakness	CWE-732
Published	2019-04-09
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: utimaco

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

Am I affected?

Timeline

2019-04-09 17:29 UTCPublished CVE record published
2026-06-17 01:49 UTCUpdated Record last modified

utimaco securityserver cse firmware MITIGATE

Affected: >= 4.00

Fixed in: no fixed release known

Safe to downgrade to: a release before 4.00

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-2018-19589?

securityserver cse firmware: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2018-19589 being exploited?

CVE-2018-19589 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-2018-19589 affect?

CVE-2018-19589 affects securityserver cse firmware. Severity is medium (CVSS 6.5). Incorrect Access Controls of Security Officer (SO) in PKCS11 R2 provider that ships with the Utimaco CryptoServer HSM product package allows an SO authenticated to a slot to retrieve attributes of keys marked as private keys in external key

How urgent is CVE-2018-19589?

Priority 41/100. Public exploit reference

References

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