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    CVE-2026-40386

    In libexif through 0.6.25, an integer underflow in size checking for Fuji and Olympus MakerNote decoding could be used by attackers to crash or leak information out of libexif-using programs.

    Published:Apr 12, 2026
    Last Modified:Apr 14, 2026
    EPS:Apr 12, 2026
    EPSS Score:0.00013
    CVSS Score:4

    Affected Products

    Vendor
    Libexif Project
    Product
    Libexif

    Exploits

    No exploit reference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

    CVE-2026-40385 (CVSS 4) — In libexif through 0.6.25, an unsigned 32bit integer overflow in Nikon MakerNote handling could be used by loc…
    CVE-2026-32775 (CVSS 7.4) — libexif through 0.6.25 has a flaw in decoding MakerNotes. If the exif_mnote_data_get_value function gets passe…
    CVE-2020-0198 (CVSS 7.5) — In exif_data_load_data_content of exif-data.c, there is a possible UBSAN abort due to an integer overflow. Thi…
    CVE-2020-0181 (CVSS 7.5) — In exif_data_load_data_thumbnail of exif-data.c, there is a possible denial of service due to an integer overf…
    CVE-2020-13113 (CVSS 8.2) — An issue was discovered in libexif before 0.6.22. Use of uninitialized memory in EXIF Makernote handling could…
    CVE-2020-13114 (CVSS 7.5) — An issue was discovered in libexif before 0.6.22. An unrestricted size in handling Canon EXIF MakerNote data c…
    CVE-2020-13112 (CVSS 9.1) — An issue was discovered in libexif before 0.6.22. Several buffer over-reads in EXIF MakerNote handling could l…
    CVE-2020-0093 (CVSS 5) — In exif_data_save_data_entry of exif-data.c, there is a possible out of bounds read due to a missing bounds ch…
    CVE-2020-12767 (CVSS 5.5) — exif_entry_get_value in exif-entry.c in libexif 0.6.21 has a divide-by-zero error.…
    CVE-2018-20030 (CVSS 7.5) — An error when processing the EXIF_IFD_INTEROPERABILITY and EXIF_IFD_EXIF tags within libexif version 0.6.21 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