What is CVE-2017-5070?

CVE-2017-5070 is a high-severity vulnerability in Apple macOS, classified under Access of Resource Using Incompatible Type (Type Confusion). CVSS score: 8.8/10. Published 2017-10-27.

How severe is CVE-2017-5070?

High severity. CVSS v3 base score is 8.8 out of 10.

Is CVE-2017-5070 known to be exploited?

Yes. CVE-2017-5070 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2022-06-08), indicating it is being actively exploited. 13 public proof-of-concept repositories are indexed.

Vulnerability in Apple macOS

CVE-2017-5070

Type confusion in V8 in Google Chrome prior to 59.0.3071.86 for Linux, Windows, and Mac, and 59.0.3071.92 for Android, allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page.

Published 2017-10-27 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.321 (98.3th percentile), scored 2026-10-18.

Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 98th percentile — 98.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.312 · newest: 0.321 · change: +0.009

Affected products

Apple macOS
Google Android
Google Chrome
Linux Kernel
Microsoft Windows
Red Hat Enterprise Linux Desktop — versions 6.0
Red Hat Enterprise Linux Server — versions 6.0
Red Hat Enterprise Linux Workstation — versions 6.0
Google Chrome Prior To 59.0.3071.86 For Linux, Windows And Mac, 59.0.3071.92 Android — versions Google Chrome prior to 59.0.3071.86 for Linux, Windows and Mac, and 59.0.3071.92 for Android

Weakness classification (CWE)

CWE-843 — Access of Resource Using Incompatible Type (Type Confusion)

CISA KEV (Known Exploited Vulnerabilities)

This CVE is on the CISA KEV catalog, added on 2022-06-08. CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.

BOD 22-01 due date: 2022-06-22.

Required action: Apply updates per vendor instructions.

Public proof-of-concept exploits

References

www.securityfocus.com/bid/98861 (VDB Entry, Third Party Advisory, vdb-entry, Broken Link)
crbug.com/722756 (Exploit, Issue Tracking)
access.redhat.com/errata/RHSA-2017:1399 (vendor-advisory, Third Party Advisory)
www.securitytracker.com/id/1038622 (VDB Entry, Third Party Advisory, vdb-entry, Broken Link)
security.gentoo.org/glsa/201706-20 (vendor-advisory, Third Party Advisory)
chromereleases.googleblog.com/2017/06/stable-channel-update-for-desktop.html (Release Notes, Vendor Advisory)
134c704f-9b21-4f2e-91b3-4a467353bcc0 (US Government Resource)

Frequently asked questions

What is CVE-2017-5070?: CVE-2017-5070 is a high-severity vulnerability in Apple macOS, classified under Access of Resource Using Incompatible Type (Type Confusion). CVSS score: 8.8/10. Published 2017-10-27.
How severe is CVE-2017-5070?: High severity. CVSS v3 base score is 8.8 out of 10.
Is CVE-2017-5070 known to be exploited?: Yes. CVE-2017-5070 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2022-06-08), indicating it is being actively exploited. 13 public proof-of-concept repositories are indexed.