CVE-2026-85438

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    CVE-2026-85438

    Published: 3 Sept 2026Last Modified: 16 Sept 2026

    Summary: MOOS-IvP through 24.8.1 Out-of-Bounds Write via Unvalidated IvP Payload Counts

    Details: MOOS-IvP through 24.8.1 contains a buffer overflow vulnerability in StringToIvPFunction() where dimension, piece, and degree counts from encoded BHV_IPF payloads are used as allocation sizes and loop bounds without validation. Attackers can supply crafted payloads with mismatched dimension values to write attacker-controlled doubles past the end of the IvPBox weight array, causing memory corruption and potential code execution.

    References: https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/85xxx/CVE-2026-85438.json, https://nvd.nist.gov/vuln/detail/CVE-2026-85438, https://www.vulncheck.com/advisories/moos-ivp-through-24.8.1-out-of-bounds-write-via-unvalidated-ivp-payload-counts, https://github.com/moos-ivp/moos-ivp/commit/85f4653ff792b30c3ab14dc0eac0991d1405d904, https://github.com/moos-ivp/moos-ivp/pull/126, https://github.com/moos-ivp/moos-ivp, https://github.com/moos-ivp/moos-ivp/blob/1de9ae146cd63c209e8c3fd81611a4ed2472971b/ivp/src/lib_ivpbuild/FunctionEncoder.cpp#L407

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -477be7e91bf220185d55e5a2a9dba16dbde32c3f

    Affected versions

    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
    CVE-2026-85438 | CVE-DB