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    CVE-2016-6296

    Integer signedness error in the simplestring_addn function in simplestring.c in xmlrpc-epi through 0.54.2, as used in PHP before 5.5.38, 5.6.x before 5.6.24, and 7.x before 7.0.9, allows remote attackers to cause a denial of service (heap-based buffer overflow) or possibly have unspecified other impact via a long first argument to the PHP xmlrpc_encode_request function.

    Published:Jul 17, 2016
    Last Modified:Apr 12, 2025
    EPS:Jul 25, 2016
    EPSS Score:0.1346
    CVSS Score:9.8

    Affected Products

    Vendor
    Php
    Product
    Php
    Vendor
    Redhat
    Product
    Rhel Software Collections

    Exploits

    https://bugs.php.net/72606https://bugs.php.net/72606

    Related CVEs

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    CVE-2026-7263 (CVSS 6.3) — In PHP versions 8.4.* before 8.4.21 and 8.5.* before 8.5.6, DOMNode::C14N() method may process the XML data in…
    CVE-2026-6104 (CVSS 6.3) — In PHP versions 8.4.* before 8.4.21 and 8.5.* before 8.5.6, when an encoding name containing an embedded NUL b…
    CVE-2026-7258 (CVSS 6.3) — In PHP versions 8.2.* before 8.2.31, 8.3.* before 8.3.31, 8.4.* before 8.4.21, and 8.5.* before 8.5.6, some fu…
    CVE-2026-6722 (CVSS 9.5) — In PHP versions 8.2.* before 8.2.31, 8.3.* before 8.3.31, 8.4.* before 8.4.21, and 8.5.* before 8.5.6, the SOA…
    CVE-2026-7259 (CVSS 2.1) — In PHP versions 8.2.* before 8.2.31, 8.3.* before 8.3.31, 8.4.* before 8.4.21, and 8.5.* before 8.5.6, a misma…
    CVE-2026-7261 (CVSS 6.3) — In PHP versions 8.2.* before 8.2.31, 8.3.* before 8.3.31, 8.4.* before 8.4.21, and 8.5.* before 8.5.6, when So…
    CVE-2026-7262 (CVSS 2.9) — In PHP versions 8.2.* before 8.2.31, 8.3.* before 8.3.31, 8.4.* before 8.4.21, and 8.5.* before 8.5.6, when a …
    CVE-2025-14179 (CVSS 7.4) — In PHP versions 8.2.* before 8.2.31, 8.3.* before 8.3.31, 8.4.* before 8.4.21, and 8.5.* before 8.5.6, the PDO…
    CVE-2026-7568 (CVSS 6.3) — In PHP versions 8.2.* before 8.2.31, 8.3.* before 8.3.31, 8.4.* before 8.4.21, and 8.5.* before 8.5.6, the met…

    References

    http://git.php.net/?p=php-src.git%3Ba=commit%3Bh=e6c48213c22ed50b2b987b479fcc1ac709394caa
    http://lists.apple.com/archives/security-announce/2016/Sep/msg00006.html
    http://openwall.com/lists/oss-security/2016/07/24/2
    http://php.net/ChangeLog-5.php
    http://php.net/ChangeLog-7.php
    http://rhn.redhat.com/errata/RHSA-2016-2750.html
    http://www.debian.org/security/2016/dsa-3631
    http://www.securityfocus.com/bid/92095
    http://www.securitytracker.com/id/1036430
    http://www.ubuntu.com/usn/USN-3059-1
    https://bugs.php.net/72606
    https://lists.debian.org/debian-lts-announce/2019/11/msg00029.html
    https://security.gentoo.org/glsa/201611-22
    https://support.apple.com/HT207170
    http://git.php.net/?p=php-src.git%3Ba=commit%3Bh=e6c48213c22ed50b2b987b479fcc1ac709394caa
    http://lists.apple.com/archives/security-announce/2016/Sep/msg00006.html
    http://openwall.com/lists/oss-security/2016/07/24/2
    http://php.net/ChangeLog-5.php
    http://php.net/ChangeLog-7.php
    http://rhn.redhat.com/errata/RHSA-2016-2750.html
    http://www.debian.org/security/2016/dsa-3631
    http://www.securityfocus.com/bid/92095
    http://www.securitytracker.com/id/1036430
    http://www.ubuntu.com/usn/USN-3059-1
    https://bugs.php.net/72606
    https://lists.debian.org/debian-lts-announce/2019/11/msg00029.html
    https://security.gentoo.org/glsa/201611-22
    https://support.apple.com/HT207170

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High