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CVE-2016-5648

21
FAUCET Score

CVE-2016-5648 describes a critical vulnerability in the Acer Portal app for Android versions prior to 3.9.4.2000, where improper SSL certificate validation allows remote attackers to conduct Man-in-the-Middle (MitM) attacks using crafted certificates. This vulnerability has a CVSS v3 score of 5.3 (MEDIUM), indicating a network-based attack with high complexity, requiring user interaction, and potentially leading to high confidentiality impact. While the EPSS score is low and there is no evidence of active exploitation, nor publicly available exploit code in Metasploit or ExploitDB, the underlying weakness (CWE-295) remains a significant security concern.

Impacted Technologies

VendorProductVersion(s)CPE
<= 3.9.3.2006CPE matchmatch criteria
cpe:2.3:a:acer:acer_portal:*:*:*:*:*:android:*:*

CVSS Data

CVSS version used by this source: 3.0

5.3MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
1.6
Impact Score
3.6
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.17%
Probability of exploitation in next 30 days
EPSS Percentile
64.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0117 is in the 77th percentile among its peer group of 705 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.2 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 0.2 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

packetstormsecurity.com / files/137775/Acer-Portal-Android-Application-3.9.3.2006-Man-In-The-Middle.html
ExploitThird Party AdvisoryVDB Entry
seclists.org / fulldisclosure/2016/Jul/17
Mailing ListThird Party Advisory
kb.cert.org / vuls/id/690343
Third Party AdvisoryUS Government Resource
securityfocus.com / archive/1/538851/100/0/threaded