CVE-2010-2950: PHP

Medium severity, CVSS 6.8. EPSS: 5.7% chance of exploitation in the next 30 days.

Format string vulnerability in stream.c in the phar extension in PHP 5.3.x through 5.3.3 allows context-dependent attackers to obtain sensitive information (memory contents) and possibly execute arbitrary code via a crafted phar:// URI that is not properly handled by the phar_stream_flush function, leading to errors in the php_stream_wrapper_log_error function. NOTE: this vulnerability exists because of an incomplete fix for CVE-2010-2094.

Affected products

• PHP PHP: version 5.3.0 only; version 5.3.1 only; version 5.3.2 only; version 5.3.3 only

Published 2010-09-28. Last modified 2026-06-16.