CVE-2025-7770 | THREATINT

Description

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.

Reserved 2025-07-17 | Published 2025-08-06 | Updated 2025-08-06 | Assigner icscert

HIGH: 8.7CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Problem types

CWE-337 Predictable Seed in Pseudo-Random Number Generator (PRNG)

Product status

Default status

unaffected

Any version

affected

Credits

Anthony Rose of BC Security reporter

Jacob Krasnov of BC Security reporter

Peter Kariuki of Ovanova reporter

References

www.cisa.gov/news-events/ics-advisories/icsa-25-217-02 government-resource

cve.org (CVE-2025-7770)

nvd.nist.gov (CVE-2025-7770)

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