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CVE-2007-4255

32
FAUCET Score

CVE-2007-4255 describes a buffer overflow vulnerability in the mSQL extension of PHP 5.2.3. This flaw allows unauthenticated, remote attackers to execute arbitrary code by supplying an excessively long first argument to the msql_connect function. With a CVSS score of 7.5, it is considered highly severe, enabling full compromise of confidentiality, integrity, and availability. While not listed in CISA's KEV catalog, proof-of-concept exploit code is publicly available on ExploitDB, though there is minimal community discussion or media coverage surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
5.2.3CPE matchmatch criteria
cpe:2.3:a:php:php:5.2.3:*:*:*:*:*:*:*

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
9.33%
Probability of exploitation in next 30 days
EPSS Percentile
94.9%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
ExploitDB: EDB-4270 · Aug 8, 2007
This CVE's current EPSS score of 0.0933 is in the 92nd 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-2007-4255

CVE-2007-4255

References

exchange.xforce.ibmcloud.com / vulnerabilities/35830
exploit-db.com / exploits/4260
securityfocus.com / archive/1/475660/100/0/threaded
securityfocus.com / bid/25213