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CVE-2007-1700

32
FAUCET Score

CVE-2007-1700 is a critical vulnerability affecting PHP versions prior to 4.4.5 and 5.2.1, specifically within the session extension. It allows context-dependent attackers to execute arbitrary code by manipulating session variables, leading to a local overflow after unsetting HTTP_SESSION_VARS and _SESSION. With a CVSS score of 7.5 (High), this vulnerability is easily exploitable over the network with low attack complexity, potentially resulting in partial compromise of confidentiality, integrity, and availability. While not listed on CISA's KEV catalog, an exploit (EDB-3571) is publicly available on ExploitDB, though there is minimal community discussion or media coverage surrounding this older vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
4.0CPE matchmatch criteria
cpe:2.3:a:php:php:4.0:*:*:*:*:*:*:*
4.0CPE matchmatch criteria
cpe:2.3:a:php:php:4.0:beta_4_patch1:*:*:*:*:*:*
4.0CPE matchmatch criteria
cpe:2.3:a:php:php:4.0:beta1:*:*:*:*:*:*
4.0CPE matchmatch criteria
cpe:2.3:a:php:php:4.0:beta2:*:*:*:*:*:*
4.0CPE matchmatch criteria
cpe:2.3:a:php:php:4.0:beta3:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

7.5HIGH

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

Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
6.4
CvssVersion
2.0

Exploit Intelligence

EPSS Score
9.02%
Probability of exploitation in next 30 days
EPSS Percentile
94.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
ExploitDB: EDB-3571 · Mar 25, 2007
This CVE's current EPSS score of 0.0902 is in the 91st percentile among its peer group of 51,506 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, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Advisories (1)

redhatCVE-2007-1700

php session extension refcount handling issue

References

h20000.www2.hp.com / bizsupport/TechSupport/Document.jsp
h20000.www2.hp.com / bizsupport/TechSupport/Document.jsp
secunia.com / advisories/25056
secunia.com / advisories/25057
secunia.com / advisories/25062
secunia.com / advisories/25423
secunia.com / advisories/25445
secunia.com / advisories/25850
security.gentoo.org / glsa/glsa-200705-19.xml
exchange.xforce.ibmcloud.com / vulnerabilities/33520
debian.org / security/2007/dsa-1283
novell.com / linux/security/advisories/2007_32_php.html
php-security.org / MOPB/MOPB-30-2007.html
securityfocus.com / bid/23119
Exploit
ubuntu.com / usn/usn-455-1
vupen.com / english/advisories/2007/1991
vupen.com / english/advisories/2007/2374