Is CVE-2018-17480 in the CISA KEV catalog?

Yes. CVE-2018-17480 is on the CISA Known Exploited Vulnerabilities list, added 2022-06-08.

What is the CVSS severity of CVE-2018-17480?

CVE-2018-17480 has a CVSS v3 base score of 8.8 (HIGH).

What is the EPSS score for CVE-2018-17480?

CVE-2018-17480 has an EPSS score of 34.29% (98th percentile), estimating the probability of exploitation in the next 30 days.

CVE & CISA-KEV Catalog

CVE-2018-17480

HIGHCISA KEVEPSS 98th pctl

8.8

CVSS v3

NVD

Description

Execution of user supplied Javascript during array deserialization leading to an out of bounds write in V8 in Google Chrome prior to 71.0.3578.80 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page.

CWE-787Out-of-bounds Write

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionRequired

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Exploit Intelligence

34.29%probability of exploitation in 30 days

98thpercentile

Very high risk: more likely to be exploited than 98% of all known CVEs.

Known Exploited Vulnerability (CISA KEV)

Google Chromium V8 Out-of-Bounds Write Vulnerability

Google Chromium V8 Engine contains out-of-bounds write vulnerability that allows a remote attacker to execute code inside a sandbox via a crafted HTML page. This vulnerability could affect multiple web browsers that utilize Chromium, including, but not limited to, Google Chrome, Microsoft Edge, and Opera.

Apply updates per vendor instructions.

Remediation due: 2022-06-22

References

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-10-24.