CVE-2016-5128

objects.cc in Google V8 before 5.2.361.27, as used in Google Chrome before 52.0.2743.82, does not prevent API interceptors from modifying a store target without setting a property, which allows remote attackers to bypass the Same Origin Policy via a crafted web site.

Published: 2016-07-23 Last update: 2026-05-06 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2016-5128 is rated Moderate Risk (63.6/100): CVSS High severity, with medium exploitation likelihood (EPSS 1.46%). Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2016-5128

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-01-14 1.20% 1.46% +0.26%
2 2025-09-10 0.74% 1.20% +0.45%
3 2025-07-21 — 0.74% —

Full EPSS history (13 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2016-5128

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
8.8 3.0 HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 2.8 5.9 [email protected]
6.8 2.0 MEDIUM
AV:N/AC:M/Au:N/C:P/I:P/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:P)
Partial availability impact.
 8.6 6.4 [email protected]

Weakness enumeration for CVE-2016-5128

OS Trackers for CVE-2016-5128

vendor priority summary link
gentoo normal CVE-2016-5128: 1 GLSA(s) (201610-09), 1 atom(s) (www-client/chromium); latest impact normal. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2016-5128
redhat high — https://access.redhat.com/security/cve/CVE-2016-5128
suse medium CVE-2016-5128 severity moderate: SUSE including 13 source package names (chromedriver-52.0.2743.82-89.1, chromedriver-55.0.2883.75-3.1, …), 13 product×package rows across 6 product lines (SUSE Package Hub 12, openSUSE Leap 15.0, … (6 product lines)): Fixed 13. https://www.suse.com/security/cve/CVE-2016-5128/
ubuntu medium CVE-2016-5128 medium priority: Ubuntu including 4 source packages (chromium-browser, libv8, libv8-3.14, oxide-qt), 40 status rows across 10 suites (artful, bionic, cosmic, precise, trusty, upstream, wily, xenial, yakkety, zesty): released 14, DNE 13, ignored 11, needs-triage 2. https://ubuntu.com/security/CVE-2016-5128

Affected software / configurations for CVE-2016-5128

Vendor Product Version Raw CPE
google chrome <= 51.0.2704.106 cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*
google v8 5.2.360 cpe:2.3:a:google:v8:5.2.360:*:*:*:*:*:*:*

References for CVE-2016-5128

URL Tags
http://googlechromereleases.blogspot.com/2016/07/stable-channel-update.html
http://lists.opensuse.org/opensuse-security-announce/2016-07/msg00020.html
http://lists.opensuse.org/opensuse-security-announce/2016-07/msg00021.html
http://lists.opensuse.org/opensuse-security-announce/2016-07/msg00022.html
http://lists.opensuse.org/opensuse-security-announce/2016-07/msg00028.html
http://rhn.redhat.com/errata/RHSA-2016-1485.html
http://www.debian.org/security/2016/dsa-3637
http://www.securityfocus.com/bid/92053
http://www.securitytracker.com/id/1036428
http://www.ubuntu.com/usn/USN-3041-1
https://codereview.chromium.org/2082633002
https://codereview.chromium.org/2084183004
https://codereview.chromium.org/2085223002
https://codereview.chromium.org/2101983002
https://codereview.chromium.org/2103033002
https://crbug.com/619166
https://security.gentoo.org/glsa/201610-09
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