Bug 2565314 (CVE-2026-120432)

Summary: CVE-2026-120432 netpbm: netpbm: Arbitrary code execution via integer overflow in winicontopam
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: high Docs Contact:
Priority: high    
Version: unspecifiedCC: rhel-process-autobot, watson-tool-maintainers
Target Milestone: ---Keywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in Netpbm. An integer overflow in the winicontopam utility occurs when processing icon or cursor files with excessively large dimensions. By tricking a user or system into processing a specially crafted file, an attacker could corrupt memory, potentially leading to arbitrary code execution or a Denial of Service (DoS) crash.
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
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Description OSIDB Bzimport 2026-11-02 17:42:30 UTC
Netpbm before 10.86.51, 11.02.30, and 11.15.08 contains an integer overflow vulnerability in winicontopam that allows attackers to corrupt heap memory via oversized ICO/CUR dimensions. Attackers can supply a crafted icon file with width or height above 32767, wrapping int16_t loop counters into negative row buffer indices to cause crashes or potential code execution.