MEDIUM
CVE-2026-9930
CWE-787Published: May 28, 2026· Updated: Jun 1, 2026
4.3
CVSS v3.1
EPSS:0.03%probability of exploitation in 30 daysPercentile:7.8th
Official Description
Out of bounds write in Dawn in Google Chrome on Mac prior to 148.0.7778.216 allowed a remote attacker to perform an out of bounds memory write via a crafted HTML page. (Chromium security severity: High)
Technical Analysis
CVE-2026-9930 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.
From a weakness classification perspective (CWE-787): Out-of-bounds write vulnerabilities can lead to data corruption, crashes, or arbitrary code execution.
CVSS v3.1 Vector Breakdown
Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionRequired
ScopeUnchanged
Impact
ConfidentialityNone
IntegrityLow
AvailabilityNone
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
Affected Vendors & Products
Apple1 product
macos
Google1 product
chrome
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 (2)
→
→
https://issues.chromium.org/issues/501499832Permissions Required · Vendor Advisory
Quick Facts
CVE IDCVE-2026-9930
CVSS Score4.3 / 10
SeverityMEDIUM
WeaknessCWE-787
CISA KEVNo
EPSS (30d)0.03%
Affected2 vendors
PublishedMay 28, 2026
Related CVEs (CWE-787)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2026-9930 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.