CVE-2026-64831
HighCVSS 8.8Exploitation Probability (EPSS)
Low risk39th percentile - higher than 39% of all known CVEs
Summary
In FFmpeg versions 8.0 through 8.1.2, a stack buffer overflow vulnerability exists in the Vulkan HEVC hardware decoder. A remote attacker can supply a crafted HEVC/H.265 bitstream with a malicious vps_num_hrd_parameters value exceeding HEVC_MAX_SUB_LAYERS, causing overflow of stack-allocated arrays in the vk_hevc_end_frame function, potentially achieving arbitrary code execution.
Risk Assessment
An attacker can remotely execute arbitrary code on servers or workstations using FFmpeg to process video streams, potentially leading to full system compromise.
Recommendation
Upgrade FFmpeg to version 8.1.3 or later, which contains the fix.
Other vulnerabilities in FFmpeg
See all- CVE-2017-15672High
The read_header function in libavcodec/ffv1dec.c in FFmpeg 2.4 and 3.3.4 and possibly earlier allows remote attackers to have unspecified impact via a crafted MP4 file, which triggers an out-of-bounds read.
- CVE-2017-14767High
The sdp_parse_fmtp_config_h264 function in libavformat/rtpdec_h264.c in FFmpeg before version 3.3.4 mishandles empty sprop-parameter-sets values, allowing remote attackers to cause a denial of service (heap buffer overflow) or possibly have unspecified other impact via a crafted sdp file.
- CVE-2017-14225High
The av_color_primaries_name function in libavutil/pixdesc.c in FFmpeg 3.3.3 may return a NULL pointer depending on a value contained in a file, leading to a NULL pointer dereference in the avcodec_string function in libavcodec/utils.c.
- CVE-2012-2805High
Unspecified vulnerability in FFMPEG 0.10 allows remote attackers to cause a denial of service.
- CVE-2017-11719High
The dnxhd_decode_header function in libavcodec/dnxhddec.c in FFmpeg versions 3.0 through 3.3.2 allows remote attackers to cause a denial of service (out-of-array access) or possibly have unspecified other impact via a crafted DNxHD file.
- CVE-2017-11665High
The ff_amf_get_field_value function in libavformat/rtmppkt.c in FFmpeg 3.3.2 allows remote RTMP servers to cause a denial of service via a crafted stream, leading to segmentation violation and application crash.
- CVE-2017-9996High
The cdxl_decode_frame function in libavcodec/cdxl.c in FFmpeg before versions 2.8.12, 3.0.8, 3.1.8, 3.2.5, and 3.3.1 does not exclude the CHUNKY format, allowing remote attackers to cause a denial of service (heap-based buffer overflow and application crash) or possibly have unspecified other impact via a crafted file.
- CVE-2017-9995High
In libavcodec/scpr.c in FFmpeg version 3.3 and earlier, before version 3.3.1, height and width data is not properly validated, allowing remote attackers to cause a denial of service (heap-based buffer overflow and application crash) or possibly have unspecified other impact via a crafted file.
- CVE-2017-9993High
FFmpeg versions before 2.8.12, 3.0.x and 3.1.x before 3.1.9, 3.2.x before 3.2.6, and 3.3.x before 3.3.2 do not properly restrict HTTP Live Streaming filename extensions and demuxer names, allowing attackers to read arbitrary files via crafted playlist data.
- CVE-2017-9992High
A heap-based buffer overflow in the decode_dds1 function in libavcodec/dfa.c in FFmpeg before 2.8.12, 3.0.x before 3.0.8, 3.1.x before 3.1.8, 3.2.x before 3.2.5, and 3.3.x before 3.3.1 allows remote attackers to cause a denial of service (application crash) or possibly have unspecified other impact via a crafted file.
Original NVD description (English source)
FFmpeg versions 8.0 through 8.1.2 contains a stack buffer overflow vulnerability in the Vulkan HEVC hardware decoder that allows remote attackers to overwrite return addresses and adjacent stack frames by supplying a crafted HEVC/H.265 bitstream. Attackers can embed a malicious vps_num_hrd_parameters value exceeding HEVC_MAX_SUB_LAYERS in any supported container format to overflow stack-allocated arrays in the vk_hevc_end_frame function, potentially achieving arbitrary code execution.