Threats / Google / CVE-2017-5030
CVE-2017-5030
· EUVD no mirror located
· GCVE no mirror located
Verified 2026-06-22
Google Chromium V8 vulnerability
Google Chromium V8 contains a memory corruption vulnerability allowing remote code execution through crafted HTML pages, affecting multiple browsers including Chrome, Edge, and Opera.
Verdict
Today item — known-exploited.
A remote attacker can execute arbitrary code by delivering a malicious HTML page to a victim using an affected browser. The vulnerability exploits memory corruption in the V8 JavaScript engine.
01
Is it exploitable?
— the evidence, ranked above the scoreReported exploitation
3 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 2022-06-08).
Probability (EPSS)
EPSS 0.41603 — modeled likelihood of exploitation activity.EPSS is a daily-changing model output — open the source for today's value.
Severity / affected
Affected: Google, Chromium V8. Confirm exact fixed builds in the vendor advisory.
Weakness (CWE)
Mapped to CWE-125 Out-of-bounds Read — 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 code that triggers memory corruption in V8.
Business
An attacker gains the ability to execute code within the browser process with user privileges.
2
Keys to the kingdom — privilege/identity takeover narrative 2
Attacker
I host the malicious page or inject it into legitimate web traffic to reach target browsers.
Business
Victims visiting compromised or attacker-controlled sites become exposed to code execution.
3
Lateral reach — past segmentation narrative 3
Attacker
I execute arbitrary commands or install malware within the compromised browser context.
Business
User systems face data theft, credential compromise, or further lateral movement into corporate networks.
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