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CVE-2026-25599 Orca Heat Pump Spoofing: Detection & IOCs

Orca heat pumps trust a bare device ID over HTTP, so attackers can impersonate them. Includes 9 detection rules, 11 IOCs and a free Splunk SPL rule.

Read the full threat intel for CVE-2026-25599 Orca Heat Pump Spoofing: Detection & IOCs →

Chapters

  1. 0:00The hookLegacy Orca heat pumps transmit unencrypted device identifiers.
  2. 0:05The storyLegacy terminals transmit device IDs in clear text.
  3. 0:12Attack pathAttackers reportedly exploit unencrypted terminal IDs to impersonate devices and submit malware.
  4. 0:31AttributionNo threat actor is attributed.
  5. 0:35Indicators of compromise1 indicator to hunt: 1 file name.
  6. 0:40MITRE ATT&CK techniques7 ATT&CK techniques, from initial access to impact.
  7. 0:44Remediation3 steps now: Confirm Orca user portal is at version 1.19 or later.
  8. 0:51Detection rules9 detection rules, in SPL, KQL and Sigma.
Transcript

0:00Legacy Orca heat pumps transmit unencrypted device identifiers.

0:05Legacy terminals transmit device IDs in clear text.

0:09Attacker injects malware through the portal.

0:12Attackers reportedly exploit unencrypted terminal IDs to impersonate devices and submit malware.

0:20On vulnerable portals, version before 1.19, the malware executes in user browsers.

0:26Session cookies stolen, sent to attacker infrastructure.

0:31No threat actor is attributed. Confidence: low.

0:351 indicator to hunt: 1 file name.

0:407 ATT&CK techniques, from initial access to impact.

0:453 steps now: Confirm Orca user portal is at version 1.19 or later.

0:519 detection rules, in SPL, KQL and Sigma.

0:56Threadlinqs. The unified security engineering platform.