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    CVE-2026-120436

    Netpbm before 10.86.51, 11.x before 11.02.30, and 11.03 before 11.15.08 contains an integer overflow in jbigtopnm that causes heap buffer overflow when computing output buffer size. Attackers can supply a crafted multi-plane JBIG file with large header dimensions so jbg_dec_merge_planes() overflows the undersized buffer, causing crashes or potentially code execution.

    Published:Nov 2, 2026
    Last Modified:Nov 2, 2026
    EPS:Nov 2, 2026
    EPSS Score:
    CVSS Score:7.8

    Affected Products

    Vendor
    Netpbm
    Product
    Netpbm
    Vendor
    Netpbm Project
    Product
    Netpbm

    Exploits

    No exploit reference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-92 Forced Integer Overflow

    Related CVEs

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    CVE-2009-4274 (CVSS 7.5) — Stack-based buffer overflow in converter/ppm/xpmtoppm.c in netpbm before 10.47.07 allows context-dependent att…
    CVE-2008-4799 (CVSS 4.3) — pamperspective in Netpbm before 10.35.48 does not properly calculate a window height, which allows context-dep…
    CVE-2008-0554 (CVSS 6.8) — Buffer overflow in the readImageData function in giftopnm.c in netpbm before 10.27 in netpbm before 10.27 allo…
    CVE-2006-3145 (CVSS 5) — Buffer overflow in pamtofits of NetPBM 10.30 through 10.33 allows remote attackers to cause a denial of servic…
    CVE-2005-3632 (CVSS 4.6) — Multiple buffer overflows in pnmtopng in netpbm 10.0 and earlier allow attackers to execute arbitrary code via…
    CVE-2005-2978 (CVSS 7.5) — pnmtopng in netpbm before 10.25, when using the -trans option, uses uninitialized size and index variables whe…
    CVE-2005-2471 (CVSS 7.5) — pstopnm in netpbm does not properly use the "-dSAFER" option when calling Ghostscript to convert a PostScript …
    CVE-2003-0924 (CVSS 3.7) — netpbm 9.25 and earlier does not properly create temporary files, which allows local users to overwrite arbitr…

    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