CVE-2010-1866

CriticalCVSS 9.8/10Last modified Jun 16, 2026

Description

The dechunk filter in PHP 5.3 through 5.3.2, when decoding an HTTP chunked encoding stream, allows context-dependent attackers to cause a denial of service (crash) and possibly trigger memory corruption via a negative chunk size, which bypasses a signed comparison, related to an integer overflow in the chunk size decoder.

Metrics

CVSS 3.1 9.8/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

Affected software

No affected versions have been published.

Timeline

Published
May 7, 2010
Last modified
Jun 16, 2026
NVD status
Modified

Related CVEs from 2010

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CVE-2010-1866: Critical severity, CVSS 9.8 | Vulnix