CVE-2016-4071

Severity: critical (CVSS 9.8 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 20.5% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2016-05-20 · updated 2026-06-17
Weakness: CWE-20

Description

Format string vulnerability in the php_snmp_error function in ext/snmp/snmp.c in PHP before 5.5.34, 5.6.x before 5.6.20, and 7.x before 7.0.5 allows remote attackers to execute arbitrary code via format string specifiers in an SNMP::get call.

Affected products

macOS: through 10.11.4
PHP: 5.6.0-alpha1, 5.6.0-alpha2, 5.6.0-alpha3, 5.6.0-alpha4, 5.6.0-alpha5, 5.6.0-beta1 (+72)

References

http://lists.apple.com/archives/security-announce/2016/May/msg00004.html
http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00031.html
http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00033.html
http://lists.opensuse.org/opensuse-security-announce/2016-05/msg00056.html
http://rhn.redhat.com/errata/RHSA-2016-2750.html
http://www.debian.org/security/2016/dsa-3560
http://www.openwall.com/lists/oss-security/2016/04/24/1
http://www.php.net/ChangeLog-5.php
http://www.php.net/ChangeLog-7.php
http://www.securityfocus.com/bid/85800
http://www.ubuntu.com/usn/USN-2952-1
http://www.ubuntu.com/usn/USN-2952-2

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