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CVE-2016-1634

27
FAUCET Score

CVE-2016-1634 is a high-severity use-after-free vulnerability in the StyleResolver::appendCSSStyleSheet function within Blink, affecting Google Chrome versions prior to 49.0.2623.75. This flaw allows remote attackers to trigger a denial of service or potentially achieve other unspecified impacts by enticing users to a crafted website that manipulates CSS style invalidation during subtree removal. With a CVSS v3 score of 8.8 (High), exploitation requires user interaction (UI:R) but has low attack complexity (AC:L) and can lead to high impacts on confidentiality, integrity, and availability (C:H/I:H/A:H). While not currently listed in CISA's KEV catalog and lacking public exploit code in Metasploit, Nuclei, or ExploitDB, the vulnerability has garnered significant community discussion and media coverage, indicating awareness within the security community.

Impacted Technologies

VendorProductVersion(s)CPE
<= 48.0.2564.116CPE matchmatch criteria
cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

8.8HIGH

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

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.61%
Probability of exploitation in next 30 days
EPSS Percentile
73.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0161 is in the 72nd percentile among its peer group of 14,848 CVEs.

Social Chatter

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

Media Mentions

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.1 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 6 SupplementaryFixed in: chromium-browser-0:49.0.2623.75-1.el6
View patch

Vendor Advisories (1)

redhatCVE-2016-1634Important

chromium-browser: use-after-free in Blink

Mar 2, 2016

References

googlechromereleases.blogspot.com / 2016/03/stable-channel-update.html
lists.opensuse.org / opensuse-security-announce/2016-03/msg00014.html
lists.opensuse.org / opensuse-security-announce/2016-03/msg00015.html
lists.opensuse.org / opensuse-security-announce/2016-03/msg00018.html
lists.opensuse.org / opensuse-security-announce/2016-03/msg00028.html
code.google.com / p/chromium/issues/detail
codereview.chromium.org / 1556963002
security.gentoo.org / glsa/201603-09
debian.org / security/2016/dsa-3507
securityfocus.com / bid/84008
securitytracker.com / id/1035185
ubuntu.com / usn/USN-2920-1