CVE-2012-5809: The Groupon Redemptions application for Android does not verify that the server hostname matches a domain n...

Security readout for executives and security teams

This CVE describes an Android Groupon Redemptions app TLS validation flaw. The app did not confirm that a certificate belonged to the expected server name, so a network attacker could impersonate the service with another valid certificate. Source data does not identify affected versions, scoring, fixes, or confirmed exploitation. Exposure is likely limited to environments where the historical Groupon Redemptions Android application remains installed or used. The public CVE data lists no affected version range, CPE, platform build, or vendor remediation status, so fleet validation is required. Treat this as an exposure-discovery item unless the app is still business-critical. If found in active use, prioritize removal or vendor-supported replacement because the flaw undermines HTTPS identity protection and could expose credentials or transaction data on hostile networks. Mitigation focus: Inventory managed Android devices for Groupon Redemptions application installs.; Check Groupon or app-store guidance for fixed, replacement, or retired versions.; Remove or disable the app if no supported fixed version is available..

Prepared

Jun 24, 2026, 12:04 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.