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    CVE-2019-11046

    In PHP versions 7.2.x below 7.2.26, 7.3.x below 7.3.13 and 7.4.0, PHP bcmath extension functions on some systems, including Windows, can be tricked into reading beyond the allocated space by supplying it with string containing characters that are identified as numeric by the OS but aren't ASCII numbers. This can read to disclosure of the content of some memory locations.

    Published:Dec 16, 2019
    Last Modified:Aug 17, 2026
    EPS:Dec 23, 2019
    EPSS Score:0.04082
    CVSS Score:3.7

    Affected Products

    Vendor
    Canonical
    Product
    Ubuntu Linux
    Vendor
    Debian
    Product
    Debian Linux
    Vendor
    Fedoraproject
    Product
    Fedora
    Vendor
    Opensuse
    Product
    Leap
    Vendor
    Php
    Product
    Php
    Vendor
    Tenable
    Product
    Security Center

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-125 Out-of-bounds Read

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-540 Overread Buffers

    Related CVEs

    CVE-2026-13476 (CVSS 7.3) — IBM Informix Dynamic Server 14.10, 15.0, and 12.10 could allow an unauthenticated user to execute arbitrary co…
    CVE-2026-13367 (CVSS 7.8) — IBM Informix Dynamic Server 14.10, and 15.0 contain a local privilege escalation vulnerability in the oninit s…
    CVE-2026-47337 (CVSS 3.3) — Ubuntu Linux 6.8, 6.17 and 7.0 contain SAUCE patches with a possible NULL pointer dereference in the handling …
    CVE-2026-47336 (CVSS 3.3) — Ubuntu Linux 6.8 contains SAUCE patches with a possible use of an uninitialized variable in AppArmor AF_INET/A…
    CVE-2026-47335 (CVSS 5.5) — Ubuntu Linux 6.8 contains SAUCE patches with a possible NULL pointer dereference in the handling of AppArmor n…
    CVE-2026-47334 (CVSS 5.5) — Ubuntu Linux 6.8, 6.17 and 7.0 contain AppArmor SAUCE patches which incorrectly sleep while holding a spinlock…
    CVE-2026-47333 (CVSS 7.8) — Ubuntu Linux 6.8, 6.17 and 7.0 contain AppArmor SAUCE patches which can potentially incorrectly compute the si…
    CVE-2026-47332 (CVSS 5.5) — Ubuntu Linux 6.8, 6.17 and 7.0 contain AppArmor SAUCE patches which incorrectly validate the size of an intern…
    CVE-2026-47331 (CVSS 7.8) — Ubuntu Linux 6.8 contains AppArmor SAUCE patches which fail to acquire a lock when modifying a linked list. An…
    CVE-2026-47330 (CVSS 3.3) — Ubuntu Linux 6.8, 7.17 and 7.0 contain AppArmor SAUCE patches which can, under certain circumstances, use an u…

    References

    http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00036.html
    https://bugs.php.net/bug.php?id=78878
    https://lists.debian.org/debian-lts-announce/2019/12/msg00034.html
    https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/N7GCOAE6KVHYJ3UQ4KLPLTGSLX6IRVRN/
    https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XWRQPYXVG43Q7DXMXH6UVWMKWGUW552F/
    https://seclists.org/bugtraq/2020/Feb/27
    https://seclists.org/bugtraq/2020/Feb/31
    https://seclists.org/bugtraq/2021/Jan/3
    https://security.netapp.com/advisory/ntap-20200103-0002/
    https://support.f5.com/csp/article/K48866433?utm_source=f5support&amp%3Butm_medium=RSS
    https://usn.ubuntu.com/4239-1/
    https://www.debian.org/security/2020/dsa-4626
    https://www.debian.org/security/2020/dsa-4628
    https://www.tenable.com/security/tns-2021-14
    http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00036.html
    https://bugs.php.net/bug.php?id=78878
    https://lists.debian.org/debian-lts-announce/2019/12/msg00034.html
    https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/N7GCOAE6KVHYJ3UQ4KLPLTGSLX6IRVRN/
    https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XWRQPYXVG43Q7DXMXH6UVWMKWGUW552F/
    https://seclists.org/bugtraq/2020/Feb/27
    https://seclists.org/bugtraq/2020/Feb/31
    https://seclists.org/bugtraq/2021/Jan/3
    https://security.netapp.com/advisory/ntap-20200103-0002/
    https://support.f5.com/csp/article/K48866433?utm_source=f5support&amp%3Butm_medium=RSS
    https://usn.ubuntu.com/4239-1/
    https://www.debian.org/security/2020/dsa-4626
    https://www.debian.org/security/2020/dsa-4628
    https://www.tenable.com/security/tns-2021-14

    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