CVE-2018-17462

CRITICALNVD 9.69.6—
EchelonGraph scoreMEDIUM confidence

Score 9.6 from GitHub Security Advisory (severity: CRITICAL) published 2022-05-13. NVD baseline CVSS 9.6; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
9.6
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 1%CVSS: 9.6Exploit: NoneExposed: 0

A fix is available — apply it.

Incorrect refcounting in AppCache in Google Chrome prior to 70.0.3538.67 allowed a remote attacker to perform a sandbox escape via a crafted HTML page.

CVSS v3
9.6
EG Score
9.6(medium)
EG Risk
48(Track)
EG Risk 48/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity96% × 45%
Exploitation1% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS
71.1%
KEV
Not listed

Published

November 14, 2018

Last Modified

November 21, 2024

Advisory Details (6)

Auto-updated Jul 14, 2026
Patch available. Sources: redhat.
generic
https://crbug.com/888926
generic

Chrome Releases: Stable Channel Update for Desktop

https://chromereleases.googleblog.com/2018/10/stable-channel-update-for-desktop.html
redhat Patch Available

Affected: Red Hat Enterprise Linux 6 Supplementary.

https://access.redhat.com/errata/RHSA-2018:3004
generic
http://www.securityfocus.com/bid/105666
generic

[SECURITY] [DSA 4330-1] chromium-browser security update

https://www.debian.org/security/2018/dsa-4330
generic

Chromium: Multiple vulnerabilities (GLSA 201811-10) — Gentoo security

https://security.gentoo.org/glsa/201811-10

Patch Availability(1)

Vendor / EcosystemFixed in / PatchReleasedSource
redhatchromium-browser-0:70.0.3538.67-1.el6_102018-10-24redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

All Vendor Advisories

(1)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 11× in last 7d / 43× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-07-23 14:15 UTCEPSS rescore
  2. 2026-07-23 14:15 UTCEPSS rescore
  3. 2026-07-23 01:34 UTCEG score recompute
  4. 2026-07-22 22:14 UTCEG score recompute
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  7. 2026-06-30 23:19 UTCEPSS rescore
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  44. 2026-06-06 13:45 UTCEPSS rescore
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  62. 2026-05-28 01:09 UTCEG score recompute
  63. 2026-05-28 01:09 UTCVendor advisory
  64. 2026-05-28 01:09 UTCGHSA enrichment
  65. 2026-05-27 13:38 UTCEPSS rescore
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Frequently asked(5)

What is CVE-2018-17462?
CVE-2018-17462 is a critical vulnerability published on November 14, 2018. Incorrect refcounting in AppCache in Google Chrome prior to 70.0.3538.67 allowed a remote attacker to perform a sandbox escape via a crafted HTML page.
When was CVE-2018-17462 disclosed?
CVE-2018-17462 was first published in the National Vulnerability Database on November 14, 2018, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2018-17462 actively exploited?
CVE-2018-17462 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 71.1% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2018-17462?
CVE-2018-17462 has a CVSS v3 base score of 9.6 (NVD).
How do I remediate CVE-2018-17462?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2018-17462, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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