CVE•Published 2026-08-18•Modified 2026-08-25•1 article on news•5 live references•NVD data
CVE-2026-74981Mozilla · Firefox
Vulnerability data via NVD (ingested)
CVSS v3.1
8.1
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
EPSS percentile
6
Exploit Prediction Scoring System · top 94% of all CVEs
Weaknesses (CWE)
Description
Site isolation issue in the Audio/Video: Web Codecs component. This vulnerability was fixed in Firefox 154, Firefox ESR 153.1, Thunderbird 154, and Thunderbird 153.1.
Timeline
Published 2026-08-18
Modified 2026-08-25
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-2026-74981Hosts Shodan has explicitly fingerprinted as vulnerable.
Shodan · product
product:"Mozilla Firefox"All exposed Mozilla Firefox instances — cross-reference with the CVE's affected-version range.
Shodan · banner/body mention
http.html:"Firefox"HTTP body or banner mentions "Firefox" — catches deploys Shodan didn't identify as a product.
More intel sources (5)
Shodan report
vuln:CVE-2026-74981Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2026-74981Censys host search filtered to this CVE id.
grep.app
CVE-2026-74981Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2026-74981GitHub code search for direct mentions.
Google dork
"CVE-2026-74981" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.
Known PoCs on GitHub
No public proof-of-concept repositories found for CVE-2026-74981 on GitHub.