Threats / Google / CVE-2026-3909
CVE-2026-3909
· EUVD no mirror located
· GCVE no mirror located
Verified 2026-06-22
Google Skia vulnerability
Google Skia contains an out-of-bounds write vulnerability (CWE-787) allowing remote code execution through crafted HTML. The flaw affects Chrome, ChromeOS, Android, Flutter, and related products. Active exploitation confirmed.
Verdict
Today item — known-exploited.
Out-of-bounds write in a graphics rendering library enables memory corruption attacks via malicious web content. Attackers can achieve arbitrary code execution on affected systems without user interaction beyond visiting a compromised page.
01
Is it exploitable?
— the evidence, ranked above the scoreReported exploitation
4 independent public reports of in-the-wild exploitation are cataloged.Distinct reporting sources (vendor, incident response, government); open them for the underlying claims.
Exploited in the wild
Listed in the CISA Known Exploited Vulnerabilities catalog (added 2026-03-13).
Probability (EPSS)
EPSS 0.01629 — modeled likelihood of exploitation activity.EPSS is a daily-changing model output — open the source for today's value.
Severity / affected
Affected: Google, Skia. Confirm exact fixed builds in the vendor advisory.
Weakness (CWE)
Mapped to CWE-787 Out-of-bounds Write — weakness family: Memory safety.CWE assignment from the public NVD record; the weakness class drives how the flaw is exploited.
02
Who’s exploiting it?
— attribution turns risk into urgencyAttribution not established
No confirmed (advisory-backed) threat-actor attribution is established for this record. Absence of a named actor is not absence of compromise — see Coverage & confidence.
03
Why it matters
— the attack path, told twice: adversary, then board1
Front door — unauthenticated access narrative 1
Attacker
I craft a malicious HTML page containing specially formatted graphics data that triggers the out-of-bounds write in Skia's memory buffer.
Business
Users visiting attacker-controlled or compromised websites face immediate code execution risk, compromising device integrity and data confidentiality.
2
Keys to the kingdom — privilege/identity takeover narrative 2
Attacker
I host the exploit payload on a website or inject it into legitimate sites through advertising networks or watering hole attacks.
Business
Widespread exposure across Chrome users, Android devices, and Flutter applications creates mass compromise potential affecting millions of endpoints.
3
Lateral reach — past segmentation narrative 3
Attacker
I execute arbitrary code with the privileges of the affected browser or application process to steal credentials, install malware, or pivot to system resources.
Business
Attackers gain persistent access to sensitive user data, enterprise networks, and mobile devices, enabling data theft and lateral movement.
04
What to do
— defensible action- Remediate per the vendor advisory — confirm the fixed build for your version and verify exposure.1
Say it to the boardA vulnerability with this evidence profile is a defensible budget line, not a backlog ticket — fund the change against the proof above.
05