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    CVE-2016-5768

    Double free vulnerability in the _php_mb_regex_ereg_replace_exec function in php_mbregex.c in the mbstring extension in PHP before 5.5.37, 5.6.x before 5.6.23, and 7.x before 7.0.8 allows remote attackers to execute arbitrary code or cause a denial of service (application crash) by leveraging a callback exception.

    Published:Jun 23, 2016
    Last Modified:Apr 12, 2025
    EPS:Aug 7, 2016
    EPSS Score:0.11291
    CVSS Score:9.8

    Affected Products

    Vendor
    Php
    Product
    Php
    Vendor
    Redhat
    Product
    Enterprise Linux
    Vendor
    Redhat
    Product
    Rhel Software Collections

    Exploits

    https://bugs.php.net/bug.php?id=72402https://bugs.php.net/bug.php?id=72402

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

    CVE-2026-14355 (CVSS 5.6) — In PHP versions 8.2.* before 8.2.32, 8.3.* before 8.3.32, 8.4.* before 8.4.23, 8.5.* before 8.5.8, the AES-WRA…
    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://github.com/php/php-src/commit/5b597a2e5b28e2d5a52fc1be13f425f08f47cb62?w=1
    http://lists.apple.com/archives/security-announce/2016/Sep/msg00006.html
    http://lists.opensuse.org/opensuse-security-announce/2016-07/msg00004.html
    http://lists.opensuse.org/opensuse-updates/2016-08/msg00003.html
    http://php.net/ChangeLog-5.php
    http://php.net/ChangeLog-7.php
    http://rhn.redhat.com/errata/RHSA-2016-2598.html
    http://rhn.redhat.com/errata/RHSA-2016-2750.html
    http://www.debian.org/security/2016/dsa-3618
    http://www.openwall.com/lists/oss-security/2016/06/23/4
    http://www.securityfocus.com/bid/91396
    https://bugs.php.net/bug.php?id=72402
    https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05240731
    https://support.apple.com/HT207170
    http://github.com/php/php-src/commit/5b597a2e5b28e2d5a52fc1be13f425f08f47cb62?w=1
    http://lists.apple.com/archives/security-announce/2016/Sep/msg00006.html
    http://lists.opensuse.org/opensuse-security-announce/2016-07/msg00004.html
    http://lists.opensuse.org/opensuse-updates/2016-08/msg00003.html
    http://php.net/ChangeLog-5.php
    http://php.net/ChangeLog-7.php
    http://rhn.redhat.com/errata/RHSA-2016-2598.html
    http://rhn.redhat.com/errata/RHSA-2016-2750.html
    http://www.debian.org/security/2016/dsa-3618
    http://www.openwall.com/lists/oss-security/2016/06/23/4
    http://www.securityfocus.com/bid/91396
    https://bugs.php.net/bug.php?id=72402
    https://h20566.www2.hpe.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c05240731
    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