CVE-2010-2094

CVE-2010-2094 is a medium-severity vulnerability in Php with a CVSS 2.0 base score of 6.8. Its EPSS exploit-prediction score of 13% places it in the 96th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-134.

Key facts

• Severity: Medium (CVSS 2.0 base score 6.8)
• EPSS exploit prediction: 13% (96th percentile)
• Actively exploited: Not listed in CISA KEV
• Weakness: CWE-134
• Affected product: Php
• Published: 2010-05-27
• Last modified: 2026-06-16

Description

Multiple format string vulnerabilities in the phar extension in PHP 5.3 before 5.3.2 allow 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 (1) phar_stream_flush, (2) phar_wrapper_unlink, (3) phar_parse_url, or (4) phar_wrapper_open_url functions in ext/phar/stream.c; and the (5) phar_wrapper_open_dir function in ext/phar/dirstream.c, which triggers errors in the php_stream_wrapper_log_error function.

Frequently asked questions

What is CVE-2010-2094?

Multiple format string vulnerabilities in the phar extension in PHP 5.3 before 5.3.2 allow 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 (1) phar_stream_flush, (2) phar_wrapper_unlink, (3) phar_parse_url, or (4) phar_wrapper_open_url functions in ext/phar/stream.c; and the (5) phar_wrapper_open_dir function in ext/phar/dirstream.c, which triggers errors in the php_stream_wrapper_log_error function.

How severe is CVE-2010-2094?

CVE-2010-2094 has a CVSS 2.0 base score of 6.8, rated medium severity.

Is CVE-2010-2094 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 13% (96th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2010-2094?

CVE-2010-2094 primarily affects Php. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2010-2094?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2010-2094 published?

CVE-2010-2094 was published on 2010-05-27 and last updated on 2026-06-16.

References

• http://lists.opensuse.org/opensuse-security-announce/2010-09/msg00006.html
• http://lists.opensuse.org/opensuse-security-announce/2010-10/msg00000.html
• http://php-security.org/2010/05/14/mops-2010-024-php-phar_stream_flush-format-string-vulnerability/index.html
• http://php-security.org/2010/05/14/mops-2010-025-php-phar_wrapper_open_dir-format-string-vulnerability/index.html
• http://php-security.org/2010/05/14/mops-2010-026-php-phar_wrapper_unlink-format-string-vulnerability/index.html
• http://php-security.org/2010/05/14/mops-2010-027-php-phar_parse_url-format-string-vulnerabilities/index.html
• http://php-security.org/2010/05/14/mops-2010-028-php-phar_wrapper_open_url-format-string-vulnerabilities/index.html
• http://www.mandriva.com/security/advisories?name=MDVSA-2011:004
• http://www.vupen.com/english/advisories/2011/0068

Affected products (2)

• cpe:2.3:a:php:php:5.3.0:*:*:*:*:*:*:*
• cpe:2.3:a:php:php:5.3.1:*:*:*:*:*:*:*

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