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CVE-2020-6558

18
FAUCET Score

CVE-2020-6558 describes an insufficient policy enforcement vulnerability in Google Chrome on iOS, specifically affecting versions prior to 85.0.4183.83, and impacting products from Apple, Debian, Google, and openSUSE. This medium-severity vulnerability (CVSS 6.5) allows a remote attacker to bypass navigation restrictions through a crafted HTML page, requiring user interaction but having a high impact on integrity. While there is no known active exploitation or public exploit code (Metasploit, Nuclei, ExploitDB), the vulnerability has garnered some community discussion and media coverage, indicating awareness. It is not listed in CISA's KEV catalog.

Impacted Technologies

VendorProductVersion(s)CPE
< 85.0.4183.83CPE matchmatch criteria
cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*
15.0CPE matchmatch criteria
cpe:2.3:a:opensuse:backports_sle:15.0:sp1:*:*:*:*:*:*
15.0CPE matchmatch criteria
cpe:2.3:a:opensuse:backports_sle:15.0:sp2:*:*:*:*:*:*
15.1CPE matchmatch criteria
cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*
15.2CPE matchmatch criteria
cpe:2.3:o:opensuse:leap:15.2:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

6.5MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
HIGH
Availability Impact
NONE
Exploitability Score
2.8
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.79%
Probability of exploitation in next 30 days
EPSS Percentile
76.1%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0179 is in the 88th percentile among its peer group of 26,236 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, 0.0 Mastodon, and 0.1 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

Vendor Patches (1)

googlevendor investigatingvia nvd_reference
View patch

Vendor Advisories (1)

redhatCVE-2020-6558Important

chromium-browser: Insufficient policy enforcement in iOS

Aug 25, 2020

References

lists.opensuse.org / opensuse-security-announce/2020-09/msg00072.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-security-announce/2020-09/msg00078.html
Mailing ListThird Party Advisory
lists.opensuse.org / opensuse-security-announce/2020-09/msg00081.html
Mailing ListThird Party Advisory
chromereleases.googleblog.com / 2020/08/stable-channel-update-for-desktop_25.html
Vendor Advisory
crbug.com / 1109120
Third Party Advisory
debian.org / security/2021/dsa-4824
Third Party Advisory