CVE & CISA-KEV Catalog

CVE-2007-2727

LOWEPSS 77th pctl
2.6
CVSS v2
NVD

Description

The mcrypt_create_iv function in ext/mcrypt/mcrypt.c in PHP before 4.4.7, 5.2.1, and possibly 5.0.x and other PHP 5 versions, calls php_rand_r with an uninitialized seed variable and therefore always generates the same initialization vector (IV), which might allow context-dependent attackers to decrypt certain data more easily because of the guessable encryption keys.

How to fix

Remediation Available
phpNVD
Affected:>= 5.0.0, < 5.2.2Fixed in:5.2.2CVE-2007-2727derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v2 Vector

No CVSS vector data available.

Exploit Intelligence

1.86%probability of exploitation in 30 days
77thpercentile

Elevated risk: more likely to be exploited than 77% of all known CVEs.

References

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Markdown

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HTML

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2026-04-23.