CVE-2012-5809
The Groupon Redemptions application for Android does not verify that the server hostname matches...
CVE-2012-5809 is a medium vulnerability (CVSS 5.8) in Groupon Merchants, published November 4, 2012. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.57%, the 47th percentile. No source names a fixed version.
The Groupon Redemptions application for Android does not verify that the server hostname matches a domain name in the subject's Common Name (CN) or subjectAltName field of the X.509 certificate, which allows man-in-the-middle attackers to spoof SSL servers via an arbitrary valid certificate.
Exploit likelihood
What each source reports
NVD Score used
The Groupon Redemptions application for Android does not verify that the server hostname matches a domain name in the subject's Common Name (CN) or subjectAltName field of the X.509 certificate, which allows man-in-the-middle attackers to spoof SSL servers via an arbitrary valid certificate.
- Record
CVE-2012-5809- CVSS 2.0
- 5.8 Medium
AV:N/AC:M/Au:N/C:P/I:P/A:N - Weakness
- CWE-310
- Updated
- 2026-11-02
CVE List No score
The Groupon Redemptions application for Android does not verify that the server hostname matches a domain name in the subject's Common Name (CN) or subjectAltName field of the X.509 certificate, which allows man-in-the-middle attackers to spoof SSL servers via an arbitrary valid certificate.
- Record
CVE-2012-5809- Updated
- 2026-11-02
EUVDEUVD-2012-5689 No score
The Groupon Redemptions application for Android does not verify that the server hostname matches a domain name in the subject's Common Name (CN) or subjectAltName field of the X.509 certificate, which allows man-in-the-middle attackers to spoof SSL servers via an arbitrary valid certificate.
- Record
EUVD-2012-5689- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-2q35-gf6f-226r No score
The Groupon Redemptions application for Android does not verify that the server hostname matches...
The Groupon Redemptions application for Android does not verify that the server hostname matches a domain name in the subject's Common Name (CN) or subjectAltName field of the X.509 certificate, which allows man-in-the-middle attackers to spoof SSL servers via an arbitrary valid certificate.
- Record
GHSA-2q35-gf6f-226r- Updated
- 2026-11-02
Affected products
History
| When | Changed | Sources |
|---|---|---|
| 2026-11-03 | aliases | EUVD |
| 2026-11-02 | created | CVE List, GitHub Advisories, NVD |