CVE-2007-3205: The parse_str function in (1) PHP, (2) Hardened-PHP, and (3) Suhosin, when called without a second parameter,

Routine

MEDIUM 5.0MITIGATEMITIGATEMITIGATE

CVE-2007-3205 is a medium-severity flaw (CVSS 5.0) affecting hardened-php, subhosin, php. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

The parse_str function in (1) PHP, (2) Hardened-PHP, and (3) Suhosin, when called without a second parameter, might allow remote attackers to overwrite arbitrary variables by specifying variable names and values in the string to be parsed. NOTE: it is not clear whether this is a design limitation of the function or a bug in PHP, although it is likely to be regarded as a bug in Hardened-PHP and Suhosin.

Why this priority

No elevated risk signals yet

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

Risk facts

CVSS score	5.0 (Medium)
EPSS exploit chance	2.2% (top 18%)
CISA exploited list	No
Published	2007-06-13
Last modified	2026-06-16

Publisher (CNA): MITRE · Vendor: hardened-php project · php

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

Am I affected?

Timeline

2007-06-13 10:30 UTCPublished CVE record published
2026-06-16 22:41 UTCUpdated Record last modified

hardened-php project hardened-php MITIGATE

Affected: all versions

Fixed in: no fixed release known

Safe to downgrade to: no unaffected older release

1. Check installed version

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

No fixed or unaffected release known

Apply the vendor mitigation from the advisory, disable the affected feature, or restrict network access.

hardened-php project subhosin MITIGATE

Affected: all versions

Fixed in: no fixed release known

Safe to downgrade to: no unaffected older release

1. Check installed version

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

No fixed or unaffected release known

Apply the vendor mitigation from the advisory, disable the affected feature, or restrict network access.

php php MITIGATE

Affected: all versions

Fixed in: no fixed release known

Safe to downgrade to: no unaffected older release

1. Check installed version

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

No fixed or unaffected release known

Apply the vendor mitigation from the advisory, disable the affected feature, or restrict network access.

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-2007-3205?

hardened-php: mitigate or apply the listed mitigation; subhosin: mitigate or apply the listed mitigation; php: mitigate or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2007-3205 being exploited?

CVE-2007-3205 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-2007-3205 affect?

CVE-2007-3205 affects hardened-php, subhosin, php. Severity is medium (CVSS 5.0). The parse_str function in (1) PHP, (2) Hardened-PHP, and (3) Suhosin, when called without a second parameter, might allow remote attackers to overwrite arbitrary variables by specifying variable names and values in the string to be parsed.

How urgent is CVE-2007-3205?

Priority 38/100. No elevated risk signals yet.

Software pages

PHP vulnerabilities

References

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