CVE-2016-5165: Cross-site scripting (XSS) vulnerability in the Developer Tools (aka DevTools) subsystem in Google Chrome before 53.0…

Is it exploited?

Reported, not confirmed by CISA. VulnCheck KEV lists it as exploited in the wild. CISA has not added it to its Known Exploited Vulnerabilities catalog as of 29 Oct 2026.

VulnCheck KEV lists it since 17 Aug 2021. It cites 1 public report, the first from 17 Aug 2021.

• dl.acm.org

How likely is exploitation in the next 30 days?

1.2%

EPSS score, percentile 69.2 of all scored records. A probability estimated by FIRST, not a report of exploitation.

How severe?

Not scored

The CVE record carries no CVSS score.

What should I do?

CISA has set no required action, because the vulnerability is not in KEV.

Advisories and patches (7)

Which versions are affected?

Not stated. The CVE record gives vendor and product as “n/a” and the version as “unspecified”.

Source: CISA KEV 2026.10.29, as of 29 Oct 2026; VulnCheck KEV, as of 30 Oct 2026; FIRST EPSS, as of 29 Oct 2026; CVE List, as of 30 Oct 2026. About the data.

Description

Cross-site scripting (XSS) vulnerability in the Developer Tools (aka DevTools) subsystem in Google Chrome before 53.0.2785.89 on Windows and OS X and before 53.0.2785.92 on Linux allows remote attackers to inject arbitrary web script or HTML via the settings parameter in a chrome-devtools-frontend.appspot.com URL's query string.

Source: CVE List, as of 30 Oct 2026. About the data.

What to do

Advisories and patches

• openSUSE-SU-2016:2250 (Vendor advisory)
• SUSE-SU-2016:2251 (Vendor advisory)
• openSUSE-SU-2016:2349 (Vendor advisory)
• DSA-3660 (Vendor advisory)
• GLSA-201610-09 (Vendor advisory)
• openSUSE-SU-2016:2296 (Vendor advisory)
• RHSA-2016:1854 (Vendor advisory)

This summary is based on the CVE record as of 30 Oct 2026. Check the vendor's advisory before you act: affected versions and fixes can change.

Affected products and versions

The CVE record does not name affected products or versions: vendor and product are “n/a” and the version is “unspecified”.

Source: CVE List, as of 30 Oct 2026. About the data.

Timeline

Known exploited Google vulnerabilities

• CVE-2026-111497: Google Brotli Unchecked Return Value Vulnerability (added 27 Oct 2026)
• CVE-2026-58704: Google Pixel Improper Authorization Vulnerability (added 16 Sep 2026)
• CVE-2026-87491: Google Chromium V8 Out of Bounds Write Vulnerability (added 9 Sep 2026)
• CVE-2026-85046: Google Chromium V8 Type Confusion Vulnerability (added 4 Sep 2026)
• CVE-2026-11645: Google Chromium V8 Out-of-Bounds Read and Write Vulnerability (added 9 Jun 2026)