MEDIUM
CVE-2026-13940
CWE-457Published: June 30, 2026· Updated: Jul 2, 2026
6.5
CVSS v3.1
EPSS:0.13%probability of exploitation in 30 daysPercentile:3.0th
Official Description
Uninitialized Use in Cast in Google Chrome prior to 150.0.7871.47 allowed an attacker on the local network segment to obtain potentially sensitive information from process memory via malicious network traffic. (Chromium security severity: Medium)
Technical Analysis
CVE-2026-13940 requires adjacent network access, limiting remote exploitation but still posing risk in shared or local network environments.
The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.
A successful exploit results in complete confidentiality breach (data exposure), with a CVSS base score of 6.5.
CVSS v3.1 Vector Breakdown
Exploitability
Attack VectorAdjacent
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityNone
AvailabilityNone
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Affected Vendors & Products
Google1 product
chrome
Source: NVD CPE · 1 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 (2)
→
https://chromereleases.googleblog.com/2026/06/stable-channel-update-for-desktop_0175352312.htmlRelease Notes · Vendor Advisory
→
https://issues.chromium.org/issues/513158425Permissions Required
Quick Facts
CVE IDCVE-2026-13940
CVSS Score6.5 / 10
SeverityMEDIUM
WeaknessCWE-457
CISA KEVNo
EPSS (30d)0.13%
Affected1 vendor
PublishedJun 30, 2026
Related CVEs (CWE-457)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2026-13940 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.