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CVE-2007-1522

29
FAUCET Score

CVE-2007-1522 describes a double free vulnerability in the session extension of PHP versions 5.2.0 and 5.2.1. Attackers can exploit this by providing illegal characters in a session identifier, leading to an improper environment during session identifier generation and subsequent code execution. This vulnerability has a CVSS score of 6.8, indicating a medium severity with network access, medium attack complexity, and potential for partial confidentiality, integrity, and availability impacts. While there is no evidence of active exploitation or Metasploit/Nuclei modules, an ExploitDB entry (EDB-3480) exists, and community discussion and media coverage are minimal.

Impacted Technologies

VendorProductVersion(s)CPE
5.2.0CPE matchmatch criteria
cpe:2.3:a:php:php:5.2.0:*:*:*:*:*:*:*
5.2.1CPE matchmatch criteria
cpe:2.3:a:php:php:5.2.1:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

6.8MEDIUM

AV:N/AC:M/Au:N/C:P/I:P/A:P

Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
8.6
Impact Score
6.4
CvssVersion
2.0

Exploit Intelligence

EPSS Score
6.61%
Probability of exploitation in next 30 days
EPSS Percentile
93.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
ExploitDB: EDB-3480 · Mar 14, 2007
This CVE's current EPSS score of 0.0661 is in the 92nd percentile among its peer group of 19,958 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Advisories (1)

redhatCVE-2007-1522

CVE-2007-1522

References

secunia.com / advisories/24505
secunia.com / advisories/25056
novell.com / linux/security/advisories/2007_32_php.html
php-security.org / MOPB/MOPB-23-2007.html
ExploitVendor Advisory
securityfocus.com / bid/22971
vupen.com / english/advisories/2007/0960