SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2007-1380

The php_binary serialization handler in the session extension in PHP before 4.4.5, and 5.x before 5.2.1, allows context-dependent attackers to obtain sensitive information (memory contents) via a serialized variable entry with a large length value,…

EXPLOIT ✓MEDIUM 5.0EPSS 9.43%

Does this matter?

A public exploit is published in Exploit-DB (verified), so the technical barrier is gone even though the severity is medium and EPSS is 9.4%. Treat it as high on anything reachable from the internet.

Description

The php_binary serialization handler in the session extension in PHP before 4.4.5, and 5.x before 5.2.1, allows context-dependent attackers to obtain sensitive information (memory contents) via a serialized variable entry with a large length value, which triggers a buffer over-read.

CVSS 2.0
5.0 MEDIUMAV:N/AC:L/Au:N/C:P/I:N/A:N
EPSS
9.43% probability · 95th percentile
Public exploits
1 in Exploit-DB · verified · first 4 March 2007
CISA KEV
Not listed
Affected
php/php
Source
cve@mitre.org
EPSS trend
0%5%10%26 October 2026: 9.43%26 October 202626 October 2026

EPSS 9.4% since 26 October 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

Public exploits (1)

Entries in Exploit-DB that cite this CVE. Links go to the Exploit-DB page and to the file in the public repository; nothing is hosted here. A verified tick means the Exploit-DB team confirmed the exploit works against the stated version.

EDB-IDTitleTypePublishedVerified
EDB-3413source ↗PHP < 4.4.5/5.2.1 - PHP_binary Session Deserialization Information Leakmultiple · Stefan Esserlocal4 March 2007yes

References

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.