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CVE-2015-4640

12
FAUCET Score

CVE-2015-4640 describes a man-in-the-middle vulnerability in the SwiftKey language-pack update implementation on several Samsung Galaxy S4, S5, and S6 devices. This flaw allows an attacker to modify language-pack files by intercepting unencrypted HTTP connections to the update server. With a CVSS score of 2.9, this vulnerability has a low severity, requiring adjacent network access and moderate attack complexity to achieve partial integrity impact. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
All Versions ImpactedCPE matchmatch criteria
cpe:2.3:a:swiftkey:swiftkey_sdk:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

2.9LOW

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

Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
Access Vector
ADJACENT_NETWORK
Access Complexity
MEDIUM
Authentication
NONE
Exploitability Score
5.5
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
0.95%
Probability of exploitation in next 30 days
EPSS Percentile
57.4%
Percentile rank of EPSS score among Peer Group
As of 2026-07-23
Model: v2026.06.15
This CVE's current EPSS score of 0.0095 is in the 79th percentile among its peer group of 122 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

Remediation records are not available for this CVE.

References

arstechnica.com / security/2015/06/new-exploit-turns-samsung-galaxy-phones-into-remote-bugging-devices
Exploit
github.com / nowsecure/samsung-ime-rce-poc
Exploit
nowsecure.com / blog/2015/06/16/remote-code-execution-as-system-user-on-samsung-phones
Exploit
nowsecure.com / keyboard-vulnerability
Exploit
kb.cert.org / vuls/id/155412
Third Party AdvisoryUS Government Resource
securityfocus.com / bid/75347