CVE•Published 2023-06-19•Modified 2026-10-24•1 article on news•6 live references•NVD data
CVE-2023-34416Mozilla · Firefox
Vulnerability data via NVD (ingested)
CVSS v3.1
9.8
CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS percentile
60
Exploit Prediction Scoring System · top 40% of all CVEs
Weaknesses (CWE)
Description
Memory safety bugs present in Firefox 113, Firefox ESR 102.11, and Thunderbird 102.12. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability affects Firefox ESR < 102.12, Firefox < 114, and Thunderbird < 102.12.
Timeline
Published 2023-06-19
Modified 2026-10-24
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-2023-34416Hosts 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-2023-34416Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2023-34416Censys host search filtered to this CVE id.
grep.app
CVE-2023-34416Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2023-34416GitHub code search for direct mentions.
Google dork
"CVE-2023-34416" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.
Known PoCs on GitHub
No public proof-of-concept repositories found for CVE-2023-34416 on GitHub.