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Fencer Vulns
low 3.1

CVE-2016-5166 json

The download implementation in Google Chrome before 53.0.2785.89 on Windows and OS X and before 53.0.2785.92 on Linux does not properly res…

published 2016-09-11 10 y ago modified 2026-06-17 4 mo ago also EUVD-2016-6117

cvss
3.1
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.3%
EPSS 1.3% chance of exploitation in 30 days, percentile 69%
public exploits
0
none known

Summary

The download implementation in Google Chrome before 53.0.2785.89 on Windows and OS X and before 53.0.2785.92 on Linux does not properly restrict saving a file:// URL that is referenced by an http:// URL, which makes it easier for user-assisted remote attackers to discover NetNTLM hashes and conduct SMB relay attacks via a crafted web page that is accessed with the "Save page as" menu choice.

Patch / fix

  • chromium-browser Ubuntu 14.04 LTS 53.0.2785.143-0ubuntu0.14.04.1.1142
  • chromium-browser Ubuntu 16.04 LTS 53.0.2785.143-0ubuntu0.16.04.1.1254

ubuntu advisories UBUNTU-CVE-2016-5166

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • chromium-browser RHEL 6 EXTRAS 53.0.2785.89-3.el6

red hat advisories RHSA-2016:1854

  • chromium Package Hub 12 53.0.2785.89-96.1

suse advisories SUSE-SU-2016:2250-1SUSE-SU-2016:2251-1

  • chromium openSUSE Tumbleweed 55.0.2883.75-3.1
  • chromium openSUSE Tumbleweed 113.0.5672.92-1.1
  • chromium Package Hub 12 53.0.2785.89-96.1

opensuse advisories openSUSE-SU-2024:10171-1openSUSE-SU-2024:12948-1openSUSE-SU-2016:2250-1

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2016-5166 updated cvss 6.5

chromium-browser: smb relay attack via save page as

  • Red Hat Enterprise Linux Desktop Supplementary (v. 6) chromium-browser 53.0.2785.89-3.el6 Red Hat Enterprise Linux Server Supplementary (v. 6) chromium-browser 53.0.2785.89-3.el6 Red Hat Enterprise Linux Workstation Supplementary (v. 6) chromium-browser 53.0.2785.89-3.el6
    fixed: vendor fix RHSA-2016:1854

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

1.26% chance of exploitation in the next 30 days, higher than 69% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.0 3.1 CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N
NVD 2.0 2.6 AV:N/AC:H/Au:N/C:P/I:N/A:N

Classification

Weakness
  • CWE-200 Exposure of Sensitive Information to an Unauthorized Actor
Technology feeds

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.