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CVE-2016-3763

12
FAUCET Score

CVE-2016-3763 describes a vulnerability in the Proxy Auto-Config (PAC) feature of Android versions 4.x through 6.x. The flaw in net/PacProxySelector.java allows remote attackers to discover credentials by operating a server with a PAC script, as the system fails to restrict URL information to only scheme, host, and port. This vulnerability is rated as LOW severity (CVSS 3.3) with a local attack vector, low attack complexity, and requires user interaction, potentially leading to a loss of confidentiality. There is no evidence of active exploitation, no known public exploit code (Metasploit, Nuclei, ExploitDB), and minimal community discussion or media coverage.

Impacted Technologies

VendorProductVersion(s)CPE
4.0CPE matchmatch criteria
cpe:2.3:o:google:android:4.0:*:*:*:*:*:*:*
4.0.1CPE matchmatch criteria
cpe:2.3:o:google:android:4.0.1:*:*:*:*:*:*:*
4.0.2CPE matchmatch criteria
cpe:2.3:o:google:android:4.0.2:*:*:*:*:*:*:*
4.0.3CPE matchmatch criteria
cpe:2.3:o:google:android:4.0.3:*:*:*:*:*:*:*
4.0.4CPE matchmatch criteria
cpe:2.3:o:google:android:4.0.4:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

3.3LOW

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
1.8
Impact Score
1.4
CvssVersion
3.0

Exploit Intelligence

EPSS Score
0.51%
Probability of exploitation in next 30 days
EPSS Percentile
40.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0051 is in the 51st percentile among its peer group of 577 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 0.0 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

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

References

android.googlesource.com / platform/frameworks/base/+/ec2fc50d202d975447211012997fe425496c849c
source.android.com / security/bulletin/2016-07-01.html
Vendor Advisory