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CVE-2016-5166

15
FAUCET Score

CVE-2016-5166 describes a vulnerability in Google Chrome (versions prior to 53.0.2785.89 on Windows/OS X and 53.0.2785.92 on Linux) where saving an HTTP-referenced file:// URL could expose NetNTLM hashes. This low-severity vulnerability (CVSS 3.1) requires user interaction ("Save page as") and a crafted web page to facilitate SMB relay attacks. There is no evidence of active exploitation, public exploit code, or significant community discussion, indicating a low current risk.

Impacted Technologies

VendorProductVersion(s)CPE
<= 52.0.2743.116CPE matchmatch criteria
cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*
42.1CPE matchmatch criteria
cpe:2.3:o:opensuse:leap:42.1:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

3.1LOW

CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
1.6
Impact Score
1.4
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.26%
Probability of exploitation in next 30 days
EPSS Percentile
66.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0126 is in the 79th percentile among its peer group of 232 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.2 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.1 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6 SupplementaryFixed in: chromium-browser-0:53.0.2785.89-3.el6
View patch

Vendor Advisories (1)

redhatCVE-2016-5166Moderate

chromium-browser: smb relay attack via save page as

Aug 31, 2016

References

lists.opensuse.org / opensuse-security-announce/2016-09/msg00003.html
lists.opensuse.org / opensuse-security-announce/2016-09/msg00004.html
lists.opensuse.org / opensuse-security-announce/2016-09/msg00008.html
lists.opensuse.org / opensuse-updates/2016-09/msg00073.html
rhn.redhat.com / errata/RHSA-2016-1854.html
codereview.chromium.org / 2075273002
crbug.com / 616429
googlechromereleases.blogspot.com / 2016/08/stable-channel-update-for-desktop_31.html
security.gentoo.org / glsa/201610-09
debian.org / security/2016/dsa-3660
securityfocus.com / bid/92717
securitytracker.com / id/1036729