CVE-2010-1128: n/a vulnerability

CVE-2010-1128: The Linear Congruential Generator (LCG) in PHP before 5.2.13 does not provide the expected entropy, which m...

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.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 7, 2024, 01:14 UTC (UTC+00:00)

Security readout for executives and security teams

Older PHP versions used a weak random-value generator. If an application used it for values that must be hard to guess, such as session cookies via uniqid, attackers could have an easier time predicting them. Business risk depends on whether legacy PHP remains in use and whether applications relied on these functions for authentication or sessions. Exposure is most likely in legacy environments running PHP before 5.2.13, especially applications that used uniqid or LCG-derived values for session identifiers, cookies, reset tokens, or other unpredictable secrets. Treat this as a legacy-platform risk. It is not documented as actively exploited in the provided sources, but it can affect authentication integrity where old PHP applications generate predictable session values. Mitigation focus: Upgrade PHP environments older than 5.2.13 according to vendor guidance.; Review Red Hat or distribution advisories for backported package fixes.; Identify applications relying on uniqid or LCG-derived values for security tokens..

Prepared: Jun 28, 2026, 10:16 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Mar 26, 2010, 20:00 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

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1Source links

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CVE List V5 sourceCVE List V5

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

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Weakness

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