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    CVE-2026-120452

    libgphoto2 through 2.5.34 contains a heap out-of-bounds read and write vulnerability in jl2005bcd_decompress() that allows malicious USB cameras to corrupt heap memory via oversized thumbnail processing. Attackers can supply small allocation-table values and a thumbnail header byte so in-place byte-swapping exceeds the buffer by about 30 KB, leaking heap contents in preview images.

    Published:Nov 2, 2026
    Last Modified:Nov 2, 2026
    EPS:Nov 2, 2026
    EPSS Score:
    CVSS Score:5.4

    Affected Products

    Vendor
    Gphoto
    Product
    Libgphoto2

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-787 Out-of-bounds Write

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

    CVE-2026-120451 (CVSS 7) — libgphoto2 through 2.5.34 contains stack-based and heap-based buffer overflow vulnerabilities in jl2005c_init(…
    CVE-2026-40341 (CVSS 3.5) — libgphoto2 is a camera access and control library. In versions up to and including 2.5.33, an out of bound rea…
    CVE-2026-40340 (CVSS 6.1) — libgphoto2 is a camera access and control library. Versions up to and including 2.5.33 have an out-of-bounds r…
    CVE-2026-40339 (CVSS 5.2) — libgphoto2 is a camera access and control library. Versions up to and including 2.5.33 have an out-of-bounds r…
    CVE-2026-40338 (CVSS 5.2) — libgphoto2 is a camera access and control library. Versions up to and including 2.5.33 have an out-of-bounds r…
    CVE-2026-40336 (CVSS 2.4) — libgphoto2 is a camera access and control library. Versions up to and including 2.5.33 have a memory leak in `…
    CVE-2026-40335 (CVSS 5.2) — libgphoto2 is a camera access and control library. Versions up to and including 2.5.33 have an out-of-bounds r…
    CVE-2026-40334 (CVSS 3.5) — libgphoto2 is a camera access and control library. In versions up to and including 2.5.33, a missing null term…
    CVE-2026-40333 (CVSS 6.1) — libgphoto2 is a camera access and control library. In versions up to and including 2.5.33, two functions in ca…

    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