CVE-2026-111138

NetSurf libnsbmp through 0.1.7 contains an out-of-bounds read vulnerability in bmpdecoderle8 and bmpdecoderle4 because absolute-run bound checks omit the word-alignment pad byte. Attackers can supply a crafted RLE8 or RLE4 BMP ending on an odd-length absolute run to cause a one-byte heap over-rea...

CVE-2026-111139

The NetSurf libnsbmp library (versions through 0.1.7 ) is vulnerable to an out-of-bounds read in the bmp_decode_mask() function. By providing a crafted ICO file where the inner bitmap width is not a multiple of 8, an attacker can trigger a heap over-read that reads one byte past the image buffer....

CVE-2026-111138

The NetSurf libnsbmp library, versions through 0.1.7 , is vulnerable to an out-of-bounds read within the bmp_decode_rle8() and bmp_decode_rle4() functions. The root cause is that absolute-run bound checks fail to account for the word-alignment pad byte . An attacker providing a crafted RLE8 or RL...

CVE-2026-111138 NetSurf libnsbmp through 0.1.7 Out-of-Bounds Read in RLE8 and RLE4 Decoders

NetSurf libnsbmp through 0.1.7 contains an out-of-bounds read vulnerability in bmpdecoderle8 and bmpdecoderle4 because absolute-run bound checks omit the word-alignment pad byte. Attackers can supply a crafted RLE8 or RLE4 BMP ending on an odd-length absolute run to cause a one-byte heap over-rea...

CVE-2026-111139 NetSurf libnsbmp through 0.1.7 Out-of-Bounds Read via bmp_decode_mask

NetSurf libnsbmp through 0.1.7 contains an out-of-bounds read vulnerability in bmpdecodemask that allows attackers to read one byte past the image buffer by supplying crafted ICO files. Attackers can provide an ICO whose inner bitmap width is not a multiple of 8, causing a heap over-read that can...

CVE-2026-111138 NetSurf libnsbmp through 0.1.7 Out-of-Bounds Read in RLE8 and RLE4 Decoders

NetSurf libnsbmp through 0.1.7 contains an out-of-bounds read vulnerability in bmpdecoderle8 and bmpdecoderle4 because absolute-run bound checks omit the word-alignment pad byte. Attackers can supply a crafted RLE8 or RLE4 BMP ending on an odd-length absolute run to cause a one-byte heap over-rea...