CVE-2006-7205: The array_fill function in ext/standard/array.c in PHP 4.4.2 and 5.1.2 allows context-dependent attackers to c

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MEDIUM 5.0DOWNGRADE

CVE-2006-7205 is a medium-severity flaw (CVSS 5.0) affecting php. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The array_fill function in ext/standard/array.c in PHP 4.4.2 and 5.1.2 allows context-dependent attackers to cause a denial of service (memory consumption) via a large num value.

Why this priority

Public exploit reference

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

Risk facts

CVSS score	5.0 (Medium)
EPSS exploit chance	1.3% (top 30%)
CISA exploited list	No
Published	2007-05-24
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: php group

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

Am I affected?

Timeline

2007-05-24 02:30 UTCPublished CVE record published
2026-06-16 22:34 UTCUpdated Record last modified

php group php DOWNGRADE

Affected: 4.4.2 · 5.1.2

Fixed in: no fixed release known

Safe to downgrade to: a release before 4.4.2

1. Check installed version

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

2. No fixed release: DOWNGRADE to a release before 4.4.2 (Debian / Ubuntu)

apt-cache madison php sudo apt install php=<VERSION_BEFORE_4.4.2> sudo apt-mark hold php

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

dnf --showduplicates list php sudo dnf downgrade php-<VERSION_BEFORE_4.4.2> sudo dnf versionlock add php

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-2006-7205?

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

Is CVE-2006-7205 being exploited?

CVE-2006-7205 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-2006-7205 affect?

CVE-2006-7205 affects php. Severity is medium (CVSS 5.0). The array_fill function in ext/standard/array.c in PHP 4.4.2 and 5.1.2 allows context-dependent attackers to cause a denial of service (memory consumption) via a large num value.

How urgent is CVE-2006-7205?

Priority 40/100. Public exploit reference

Software pages

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References

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