CVE-2026-124311

Fraunhofer HHI VVdeC through 3.2.1 contains a NULL pointer dereference vulnerability in InterPrediction::xPredInterBlk that allows attackers to crash the decoder by switching SPS to enable reference wrap-around. Attackers can supply a crafted VVC bitstream activating a new SPS with sps_ref_wraparound_enabled_flag set, causing reads from missing PIC_RECON_WRAP buffers and denial of service.

Referanslar

• https://github.com/fraunhoferhhi/vvdec
• https://github.com/fraunhoferhhi/vvdec/blob/v3.2.1/source/Lib/CommonLib/InterPrediction.cpp#L790-L796
• https://github.com/fraunhoferhhi/vvdec/commit/fb73aca37b48f89814f57edbc8072a37d47bbe06
• https://github.com/fraunhoferhhi/vvdec/issues/420
• https://www.vulncheck.com/advisories/fraunhofer-hhi-vvdec-through-3.2.1-null-pointer-dereference-via-interprediction-xpredinterblk