CVE-2015-4640
The SwiftKey language-pack update implementation on Samsung Galaxy S4, S4 Mini, S5, and S6...
The SwiftKey language-pack update implementation on Samsung Galaxy S4, S4 Mini, S5, and S6 devices relies on an HTTP connection to the skslm.swiftkey.net server, which allows man-in-the-middle attackers to write to language-pack files by modifying an HTTP response. NOTE: CVE-2015-4640 exploitation can be combined with CVE-2015-4641 exploitation for man-in-the-middle code execution.
Exploit likelihood
What each source reports
NVD Score used
The SwiftKey language-pack update implementation on Samsung Galaxy S4, S4 Mini, S5, and S6 devices relies on an HTTP connection to the skslm.swiftkey.net server, which allows man-in-the-middle attackers to write to language-pack files by modifying an HTTP response. NOTE: CVE-2015-4640 exploitation can be combined with CVE-2015-4641 exploitation for man-in-the-middle code execution.
- Record
CVE-2015-4640- CVSS 2.0
- 2.9 Low
AV:A/AC:M/Au:N/C:N/I:P/A:N - Weakness
- CWE-254
- Updated
- 2026-11-02
CVE List No score
The SwiftKey language-pack update implementation on Samsung Galaxy S4, S4 Mini, S5, and S6 devices relies on an HTTP connection to the skslm.swiftkey.net server, which allows man-in-the-middle attackers to write to language-pack files by modifying an HTTP response. NOTE: CVE-2015-4640 exploitation can be combined with CVE-2015-4641 exploitation for man-in-the-middle code execution.
- Record
CVE-2015-4640- Updated
- 2026-11-02
EUVDEUVD-2015-4659 No score
The SwiftKey language-pack update implementation on Samsung Galaxy S4, S4 Mini, S5, and S6 devices relies on an HTTP connection to the skslm.swiftkey.net server, which allows man-in-the-middle attackers to write to language-pack files by modifying an HTTP response. NOTE: CVE-2015-4640 exploitation can be combined with CVE-2015-4641 exploitation for man-in-the-middle code execution.
- Record
EUVD-2015-4659- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-vvp6-3cxw-w3p7 No score
The SwiftKey language-pack update implementation on Samsung Galaxy S4, S4 Mini, S5, and S6...
The SwiftKey language-pack update implementation on Samsung Galaxy S4, S4 Mini, S5, and S6 devices relies on an HTTP connection to the skslm.swiftkey.net server, which allows man-in-the-middle attackers to write to language-pack files by modifying an HTTP response. NOTE: CVE-2015-4640 exploitation can be combined with CVE-2015-4641 exploitation for man-in-the-middle code execution.
- Record
GHSA-vvp6-3cxw-w3p7- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2015-4640 is a low vulnerability (CVSS 2.9) in Swiftkey Sdk, published June 19, 2015. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.95%, the 61st percentile. No source names a fixed version.
References
nowsecure.com/keyboard-vulnerability
github.com/nowsecure/samsung-ime-rce-poc
securityfocus.com/bid/75347
arstechnica.com/security/2015/06/new-exploit-turns-samsung-galaxy-phones-into-remote-bugging-devices
kb.cert.org/vuls/id/155412
nvd.nist.gov/vuln/detail/CVE-2015-4640