What’s Vulnerable › Vulnerabilities

CVE-2016-5873

• Severity: critical (CVSS 9.8 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 4.7% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2017-01-23 · updated 2026-06-17
• Weakness: CWE-119

Description

Buffer overflow in the HTTP URL parsing functions in pecl_http before 3.0.1 might allow remote attackers to execute arbitrary code via non-printable characters in a URL.

Affected products

• php Pecl Http: through 3.0.1

References

• http://www.openwall.com/lists/oss-security/2016/06/29/1
• http://www.openwall.com/lists/oss-security/2016/06/29/4
• http://www.securityfocus.com/bid/95863
• https://bugs.php.net/bug.php?id=71719
• https://github.com/m6w6/ext-http/commit/3724cd76a28be1d6049b5537232e97ac
• https://pecl.php.net/package/pecl_http/3.0.1
• https://security.gentoo.org/glsa/201612-17
• https://security.netapp.com/advisory/ntap-20180112-0001/
• http://www.openwall.com/lists/oss-security/2016/06/29/1
• http://www.openwall.com/lists/oss-security/2016/06/29/4
• http://www.securityfocus.com/bid/95863
• https://bugs.php.net/bug.php?id=71719

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