CVE-2010-1128
MEDIUM · CVSS 6.4EPSS 8.1%EU EUVD
The Linear Congruential Generator (LCG) in PHP before 5.2.13 does not provide the expected entropy, which makes it easier for context-dependent attackers to guess values that were intended to be unpredictable, as demonstrated by session cookies generated by using the uniqid function.
Key facts
- CVSS score
- 6.4 (v2.0)
- Severity
- MEDIUM
- CVSS vector
AV:N/AC:L/Au:N/C:P/I:P/A:N- Weakness (CWE)
- CWE-310
- EPSS score
- 8.1% (95th percentile)
- In CISA KEV
- No
- In EU EUVD
- Yes (EUVD-2010-1159)
- Published
- March 26, 2010
- NVD last modified
- June 16, 2026
- Status
- Modified
EU Vulnerability Database (EUVD)
This vulnerability is also tracked by ENISA as EUVD-2010-1159 in the EU Vulnerability Database. Last updated in EUVD on August 7, 2024.
View on the EU Vulnerability DatabaseAffected products
- php / php
- php / php
- php / php
- php / php
- php / php
- php / php
- php / php
- php / php
- php / php
- php / php
- php / php
- php / php
- php / php
References
- http://secunia.com/advisories/38708(Vendor Advisory)
- http://secunia.com/advisories/42410
- http://www.php.net/ChangeLog-5.php
- http://www.php.net/releases/5_2_13.php(Vendor Advisory)
- http://www.redhat.com/support/errata/RHSA-2010-0919.html
- http://www.securityfocus.com/bid/38430(Exploit)
- http://www.vupen.com/english/advisories/2010/0479(Patch, Vendor Advisory)
- http://www.vupen.com/english/advisories/2010/3081
Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS
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