MEDIUM
CVE-2026-6764
Published: April 21, 2026· Updated: Apr 22, 2026
6.5
CVSS v3.1
Official Description
Incorrect boundary conditions in the DOM: Device Interfaces component. This vulnerability was fixed in Firefox 150, Firefox ESR 140.10, Thunderbird 150, and Thunderbird 140.10.
Technical Analysis
CVE-2026-6764 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.
CVSS v3.1 Vector Breakdown
Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityNone
IntegrityLow
AvailabilityLow
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L
Affected Vendors & Products
Mozilla2 products
firefoxthunderbird
Source: NVD CPE · 2 total CPE entries
Exploit & PoC Resources
NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.
Official Patches & Advisories
All References (5)
→
https://bugzilla.mozilla.org/show_bug.cgi?id=2022162Permissions Required
→
https://www.mozilla.org/security/advisories/mfsa2026-30/Vendor Advisory
→
https://www.mozilla.org/security/advisories/mfsa2026-32/Vendor Advisory
→
https://www.mozilla.org/security/advisories/mfsa2026-33/Vendor Advisory
→
https://www.mozilla.org/security/advisories/mfsa2026-34/Vendor Advisory
Quick Facts
CVE IDCVE-2026-6764
CVSS Score6.5 / 10
SeverityMEDIUM
CISA KEVNo
Affected1 vendor
PublishedApr 21, 2026
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2026-6764 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.