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Vulnerabilities

Vulnerability · CVE-2025-7770

Tigo Energy's CCA device is vulnerable to insecure session ID generation in their remote API.

Published Aug 6, 2025 · catalog updated Aug 7, 2025 · Tigo Energy Cloud Connect Advanced

Last checked Oct 26, 2026. A connected source was read within the last 7 days.

Check if you run it

No confirmed exploitation is on record for CVE-2025-7770. EPSS is 0.54%. Act only if a listed version of Tigo Energy Cloud Connect Advanced is installed.

Gaps on this record

  • No vendor fix or required action is stored. Compare the linked advisory before you change production.

Same product and reporting

Severity
High8.7
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.54%
Remediation
Vendor / distro source
Affected products
vendor Tigo Energy Cloud Connect Advanced 0 ≤4.0.1

Tigo Energy's CCA device is vulnerable to insecure session ID generation in their remote API. The session IDs are generated using a predictable method based on the current timestamp, allowing attackers to recreate valid session IDs. When combined with the ability to circumvent session ID requirements for certain commands, this enables unauthorized access to sensitive device functions on connected solar optimization systems.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • vendor Tigo Energy Cloud Connect Advanced 0 ≤4.0.10 ≤4.0.1

How to fix CVE-2025-7770

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2025-7770. EPSS is 0.54%. Act only if a listed version of Tigo Energy Cloud Connect Advanced is installed.

Which versions are affected?

Compare what you have installed with Tigo Energy Cloud Connect Advanced 0 ≤4.0.1 0 ≤4.0.1. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS 0.54%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Aug 6, 2025 · EUVD

    Detected

    Tigo Energy's CCA device is vulnerable to insecure session ID generation in their remote API. The session IDs are generated using a predictable method based on the current timestamp, allowing attackers to recreate valid session IDs. When combined with the ability to circumvent session ID requirements for certain commands, this enables unauthorized access to sensitive device functions on connected

  2. Aug 7, 2025 · EUVD

    Updated

    Tigo Energy's CCA device is vulnerable to insecure session ID generation in their remote API. The session IDs are generated using a predictable method based on the current timestamp, allowing attackers to recreate valid session IDs. When combined with the ability to circumvent session ID requirements for certain commands, this enables unauthorized access to sensitive device functions on connected

Sources

  • CVE.orgVulnerability recordCVE-2025-7770

    Official CVE identifier

    cve.org
  • FIRST EPSSExploitation probabilityCVE-2025-7770

    30-day exploitation probability 0.54%

    first.org
  • EUVDVulnerability recordEUVD-2025-23880

    Tigo Energy's CCA device is vulnerable to insecure session ID generation in their remote API. The session IDs are generated using a predictable method based on the current timestamp, allowing attackers to recreate valid session IDs. When combined with the ability to circumvent se

    euvd.enisa.europa.eu

References

Freshness

Last verified in this catalog Oct 26, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • FIRST EPSSOct 23, 2026
  • CVE.orgOct 21, 2026
  • EUVDOct 20, 2026