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CVE-2016-3751

25
FAUCET Score

CVE-2016-3751 describes an unspecified vulnerability within libpng versions prior to 1.6.20, impacting various Android versions (4.x, 5.0.x, 5.1.x, and 6.x). This flaw allows attackers to gain elevated privileges, such as Signature or SignatureOrSystem access, through a crafted application. With a CVSS score of 7.8 (High), it presents a significant risk due to its low attack complexity and potential for high confidentiality, integrity, and availability impact. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
<= 1.6.19CPE matchmatch criteria
cpe:2.3:a:libpng:libpng:*:*:*:*:*:*:*:*
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:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

7.8HIGH

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

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
0.46%
Probability of exploitation in next 30 days
EPSS Percentile
37.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0046 is in the 38th percentile among its peer group of 11,617 CVEs.

Social Chatter

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

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 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/external/libpng/+/9d4853418ab2f754c2b63e091c29c5529b8b86ca
source.android.com / security/bulletin/2016-07-01.html
Vendor Advisory
security.netapp.com / advisory/ntap-20240719-0004
openwall.com / lists/oss-security/2016/07/09/4