CVE-2025-7770

HIGHPre-NVD 8.78.7—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 8.7 under NVD CVSS v3. EPSS exploit probability: 0.4%, top 42% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
8.7
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 1%CVSS: 8.7Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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.

CVSS v3
8.7
EG Score
8.7(medium)
EPSS
39.8%
KEV
Not listed

Published

August 6, 2025

Last Modified

June 17, 2026

References (1)

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 11× in last 7d / 44× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 114 total refreshes for this CVE.

  1. 2026-07-22 14:08 UTCEPSS rescore
  2. 2026-07-21 15:24 UTCEPSS rescore
  3. 2026-07-20 17:08 UTCEPSS rescore
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  1. 2026-07-05 02:30 UTCEPSS rescore
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  8. 2026-06-29 14:06 UTCEPSS rescore
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  22. 2026-06-21 14:56 UTCEPSS rescore
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  24. 2026-06-21 01:59 UTCEPSS rescore
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  26. 2026-06-19 19:25 UTCEPSS rescore
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  28. 2026-06-18 17:52 UTCEPSS rescore
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  39. 2026-06-10 22:18 UTCEPSS rescore
  40. 2026-06-10 13:22 UTCEPSS rescore
  41. 2026-06-08 15:49 UTCEG score recompute▲ 8.70
  42. 2026-06-08 15:49 UTCGHSA enrichment
  43. 2026-06-08 14:17 UTCEPSS rescore
  44. 2026-06-08 14:17 UTCEPSS rescore
  45. 2026-06-07 15:24 UTCEPSS rescore
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  47. 2026-06-06 13:47 UTCEPSS rescore
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  49. 2026-06-05 22:47 UTCEPSS rescore
  50. 2026-06-05 22:46 UTCEPSS rescore
  51. 2026-06-05 06:10 UTCEPSS rescore
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  53. 2026-06-04 13:12 UTCEPSS rescore
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  74. 2026-05-26 07:18 UTCEPSS rescore
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Frequently asked(5)

What is CVE-2025-7770?
CVE-2025-7770 is a high vulnerability published on August 6, 2025. 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…
When was CVE-2025-7770 disclosed?
CVE-2025-7770 was first published in the National Vulnerability Database on August 6, 2025, with the most recent update on June 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2025-7770 actively exploited?
CVE-2025-7770 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 39.8% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2025-7770?
CVE-2025-7770 has a CVSS v3 base score of 8.7 (NVD).
How do I remediate CVE-2025-7770?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2025-7770, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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