Threats Tagged 'cve-2026-77219'
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Threats Tagged 'cve-2026-77219'
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CVE-2026-77219: Integer Overflow or Wraparound in GNU EmacsCVE-2026-77219 0 GNU Emacs before 31.0.91 contains an integer overflow in the PBM/PPM/PGM image loader that allows an attacker to leak heap memory contents by supplying a crafted image with large dimensions and an elevated max color index. The image loader multiplies image dimensions and channel count using signed integer arithmetic; for sufficiently large values, the result wraps to a negative number, bypassing the bounds check and causing the pixel reader to access heap memory past the end of the allocated buffer. The over-read contents are interpreted as pixel color values and rendered on screen. Join the discussion | CVE Database V5 | 08/21/2026, 20:20:45 UTC Added: 08/21/2026, 20:37:40 UTC |
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