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    CVE-2026-5476

    A vulnerability was identified in NASA cFS up to 7.0.0 on 32-bit. Affected is the function CFE_TBL_ValidateCodecLoadSize of the file cfe/modules/tbl/fsw/src/cfe_tbl_passthru_codec.c. The manipulation leads to integer overflow. The complexity of an attack is rather high. The exploitability is told to be difficult. A fix is planned for the upcoming version milestone of the project.

    Published:Apr 3, 2026
    Last Modified:May 4, 2026
    EPS:Apr 3, 2026
    EPSS Score:0.00035
    CVSS Score:4.6

    Affected Products

    Vendor
    Nasa
    Product
    Cfs
    Vendor
    Nasa
    Product
    Core Flight System

    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

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    CVE-2026-82479 (CVSS 5.3) — A vulnerability was identified in NASA cFS up to 7.0.1. Impacted is the function OS_read of the file modules/p…
    CVE-2026-67979 (CVSS 9.1) — Incorrect access control in the Executive Services dynamic application start path component of NASA cFS v7.0.1…
    CVE-2026-67978 (CVSS 7.5) — An issue in the SBN UDP interface of NASA cFS v7.0.1 allows attackers to cause a Denial of Service (DoS) via t…
    CVE-2026-67973 (CVSS 7.5) — An issue in the CFDP receive path of NASA cFS v7.0.1 allows attackers to cause a Denial of Service (DoS) via r…
    CVE-2026-67969 (CVSS 7.5) — An issue in the HS_MonitorApplications() component of NASA cFS v7.0.1 allows attackers to force the processor …
    CVE-2026-67972 (CVSS 7.5) — An issue in the CF_CFDP_RecvMd() component of NASA cFS v7.0.1 allows attackers to contrl where received conten…
    CVE-2026-67970 (CVSS 7.5) — Incorrect access control in the DS_SetDestPathCmd() component of NASA cFS v7.0.1 allows attackers to access se…
    CVE-2026-67974 (CVSS 7.5) — A parser boundary flaw in the Software Bus Network (SBN) application's peer subscription message handling in N…
    CVE-2026-67975 (CVSS 7.5) — Incorrect access control in NASA cFS v7.0.1 allows attackers to arbitrarily remove low-index subscriptions and…

    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