CVE•Published 2026-07-22•Modified 2026-07-28•1 article on news•5 live references•NVD data
CVE-2026-64831Ffmpeg · Ffmpeg
Vulnerability data via NVD (ingested)
CVSS v3.1
8.8
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS percentile
39
Exploit Prediction Scoring System · top 61% of all CVEs
Weaknesses (CWE)
Description
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.
Timeline
Published 2026-07-22
Modified 2026-07-28
External references
Search for exposed instances
Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common).
Shodan · vuln tag0 hosts
vuln:CVE-2026-64831Hosts Shodan has explicitly fingerprinted as vulnerable.
Shodan · product
product:"Ffmpeg Ffmpeg"All exposed Ffmpeg Ffmpeg instances — cross-reference with the CVE's affected-version range.
Shodan · banner/body mention
http.html:"Ffmpeg"HTTP body or banner mentions "Ffmpeg" — catches deploys Shodan didn't identify as a product.
More intel sources (5)
Shodan report
vuln:CVE-2026-64831Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2026-64831Censys host search filtered to this CVE id.
grep.app
CVE-2026-64831Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2026-64831GitHub code search for direct mentions.
Google dork
"CVE-2026-64831" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.