CVE Feed

    Dashboard / CVE / CVE-2021-26461

    CVE-2021-26461

    Apache Nuttx Versions prior to 10.1.0 are vulnerable to integer wrap-around in functions malloc, realloc and memalign. This improper memory assignment can lead to arbitrary memory allocation, resulting in unexpected behavior such as a crash or a remote code injection/execution.

    Published:Jun 21, 2021
    Last Modified:Nov 21, 2024
    EPS:Jun 21, 2021
    EPSS Score:0.02052
    CVSS Score:9.8

    Affected Products

    Vendor
    Apache
    Product
    Nuttx

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-190 Integer Overflow or Wraparound

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-92 Forced Integer Overflow

    Related CVEs

    CVE-2025-48769 (CVSS 8.1) — Use After Free vulnerability was discovered in fs/vfs/fs_rename code of the Apache NuttX RTOS, that due recurs…
    CVE-2025-48768 (CVSS 6.5) — Release of Invalid Pointer or Reference vulnerability was discovered in fs/inode/fs_inoderemove code of the Ap…
    CVE-2025-47869 (CVSS 9.8) — Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability was discovered in Apache…
    CVE-2025-47868 (CVSS 9.8) — Out-of-bounds Write resulting in possible Heap-based Buffer Overflow vulnerability was discovered in tools/bdf…
    CVE-2025-35003 (CVSS 9.8) — Improper Restriction of Operations within the Bounds of a Memory Buffer and Stack-based Buffer Overflow vulner…
    CVE-2020-17529 (CVSS 9.8) — Out-of-bounds Write vulnerability in TCP Stack of Apache NuttX (incubating) versions up to and including 9.1.0…
    CVE-2020-17528 (CVSS 9.1) — Out-of-bounds Write vulnerability in TCP stack of Apache NuttX (incubating) versions up to and including 9.1.0…
    CVE-2020-1939 (CVSS 9.8) — The Apache NuttX (Incubating) project provides an optional separate "apps" repository which contains various o…

    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