CVE-2012-6552: Unspecified vulnerability in admin/action.php in phpVMS 2.1.x before 2.1.935 has unknown impact and attack vec

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HIGH 10.0DOWNGRADE

CVE-2012-6552 is a high-severity flaw (CVSS 10.0) affecting phpvms. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Unspecified vulnerability in admin/action.php in phpVMS 2.1.x before 2.1.935 has unknown impact and attack vectors.

Why this priority

Critical severity

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

Risk facts

CVSS score	10.0 (High)
EPSS exploit chance	1.7% (top 23%)
CISA exploited list	No
Published	2013-05-10
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: phpvms

Last updated 2026-06-16 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2013-05-10 21:55 UTCPublished CVE record published
2026-06-16 23:48 UTCUpdated Record last modified

phpvms phpvms DOWNGRADE

Affected: 2.1.934

Fixed in: no fixed release known

Safe to downgrade to: a release before 2.1.934

1. Check installed version

apt-cache policy phpvms || rpm -q phpvms || phpvms --version

2. No fixed release: DOWNGRADE to a release before 2.1.934 (Debian / Ubuntu)

apt-cache madison phpvms sudo apt install phpvms=<VERSION_BEFORE_2.1.934> sudo apt-mark hold phpvms

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list phpvms sudo dnf downgrade phpvms-<VERSION_BEFORE_2.1.934> sudo dnf versionlock add phpvms

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

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-2012-6552?

phpvms: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2012-6552 being exploited?

CVE-2012-6552 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-2012-6552 affect?

CVE-2012-6552 affects phpvms. Severity is high (CVSS 10.0). Unspecified vulnerability in admin/action.php in phpVMS 2.1.x before 2.1.935 has unknown impact and attack vectors.

How urgent is CVE-2012-6552?

Priority 54/100. Critical severity

Software pages

PHP vulnerabilities

References

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