Orta CVSS 5.8
CVE-2026-75145: CVE-2026-75145: güvenlik açığı
Açıklama (NVD)
FFmpeg before commit b4c199c contains an incorrect integer narrowing conversion in the AV1 RTP packetizer (libavformat/rtpenc_av1.c). The OBU size is cast to long before comparison against the remaining frame size. On targets where long is 32 bits, including 64-bit Windows, sufficiently large OBU size values are sign-flipped by the narrowing cast, producing a negative value that passes the payload size check. This allows an oversized OBU to bypass the safety bound on affected platforms, leading to out-of-bounds memory access when the oversized value is subsequently used as a copy length.
Özet bilgiler
- CVSS v3.1
- 5.8
CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:H - CVSS v4.0
- 5.8
CVSS:4.0/AV:L/AC:H/AT:N/PR:N/UI:P/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - EPSS
- %0,16 (yüzdelik 5)
- CWE
- CWE-681
- Yama
- Yok / bilinmiyor