CVE-2010-1128: php Cryptographic Issues
Vulnerability summary
CVE-2010-1128 is a medium (CVSS 6.4) Cryptographic Issues vulnerability in php. EPSS estimates a 8.09% chance of exploitation in the next 30 days, higher than 94.8% of scored vulnerabilities. 2 public exploits are recorded.
Not severe (CVSS 6.4, network access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 2Timeline
- 26-03-2010PublishedVulnerability first disclosed.
- 07-08-2024Last modifiedVulnerability information updated.
Description
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.
CVSS metrics
1 score · 1 source · 1 versionEPSS trend
Probability
8.09%
Chance of exploitation in the next 30 days
Percentile
95%
Versus all other CVEs
30-day change
No change 0.00 pp
From 8.09% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
2 foundExploit Reference (securityfocus.com)
Maturity: unknown
PHP 5.3.1 - LCG Entropy Security
Maturity: poc
Weaknesses
CWE · root causeAffected systems
Known conditions: network-reachable, no authentication (CVSS vector). Other conditions: not stated in public data.
Php1 product
- phpEOL≤ 5.2.12 | 5.2.0 | 5.2.1 | 5.2.2 | 5.2.3 | 5.2.4 | 5.2.5 | 5.2.6 | 5.2.7 | 5.2.8 | 5.2.9 | 5.2.10 | 5.2.11
1 vendor · 1 product
References
8 links- www.php.net/ChangeLog-5.phpX Refsource CONFIRM