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CVE-2015-6757

19
FAUCET Score

CVE-2015-6757 is a use-after-free vulnerability in the ServiceWorker implementation of Google Chrome, specifically within content/browser/service_worker/embedded_worker_instance.cc, affecting versions prior to 46.0.2490.71. This flaw allows remote attackers to trigger a denial of service or potentially achieve other unspecified impacts by exploiting object destruction during a callback. With a CVSS score of 7.5, it is considered highly severe, requiring no authentication or complex attack vectors, and potentially leading to confidentiality, integrity, and availability impacts. While there is no evidence of active exploitation, public exploit code, or inclusion in the KEV catalog, the vulnerability has garnered some community discussion and media coverage, indicating awareness within the cybersecurity community.

Impacted Technologies

VendorProductVersion(s)CPE
<= 45.0.2454.101CPE matchmatch criteria
cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

7.5HIGH

AV:N/AC:L/Au:N/C:P/I:P/A:P

Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
6.4
CvssVersion
2.0

Exploit Intelligence

EPSS Score
1.66%
Probability of exploitation in next 30 days
EPSS Percentile
74.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0166 is in the 56th percentile among its peer group of 51,553 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 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-0:46.0.2490.71-1.el6
View patch

Vendor Advisories (1)

redhatCVE-2015-6757Important

chromium-browser: Use-after-free in ServiceWorker

Oct 13, 2015

References

googlechromereleases.blogspot.com / 2015/10/stable-channel-update.html
rhn.redhat.com / errata/RHSA-2015-1912.html
code.google.com / p/chromium/issues/detail
codereview.chromium.org / 1327723005
security.gentoo.org / glsa/201603-09
debian.org / security/2015/dsa-3376
securityfocus.com / bid/77071
securitytracker.com / id/1033816
ubuntu.com / usn/USN-2770-1
ubuntu.com / usn/USN-2770-2