MEDIUM
CVE-2026-3063
Published: February 23, 2026· Updated: Feb 25, 2026
5.4
CVSS v3.1
EPSS:0.00%probability of exploitation in 30 daysPercentile:0.1th
Official Description
Inappropriate implementation in DevTools in Google Chrome prior to 145.0.7632.116 allowed an attacker who convinced a user to install a malicious extension to inject scripts or HTML into a privileged page via DevTools. (Chromium security severity: High)
Technical Analysis
CVE-2026-3063 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
Exploitation does not require any privileges, though user interaction (Required) is needed, which slightly reduces the risk of mass automated attacks.
CVSS v3.1 Vector Breakdown
Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionRequired
ScopeUnchanged
Impact
ConfidentialityLow
IntegrityLow
AvailabilityNone
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
Affected Vendors & Products
Apple1 product
macos
Google1 product
chrome
Linux1 product
linux kernel
Microsoft1 product
windows
Source: NVD CPE · 4 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.
All References (2)
→
→
https://issues.chromium.org/issues/485287859Issue Tracking · Permissions Required
Quick Facts
CVE IDCVE-2026-3063
CVSS Score5.4 / 10
SeverityMEDIUM
CISA KEVNo
EPSS (30d)0.00%
Affected4 vendors
PublishedFeb 23, 2026
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2026-3063 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.