Affects widely-used backup software; auth bypass risks extensive data disclosure and manipulation across many orgs.
CVE-2025-30410
Auth-bypass in Acronis Cyber Protect permits data disclosure and manipulation.
Is CVE-2025-30410 being exploited?
Not confirmed. CVE-2025-30410 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.62% probability of exploitation in the next 30 days.
How severe is CVE-2025-30410?
CVE-2025-30410 is rated Critical with a CVSS score of 9.8. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2025-30410?
Yes. A fix has been recorded for CVE-2025-30410. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2025-30410 affect?
CVE-2025-30410 affects Acronis Cyber Protect Cloud Agent (Linux/macOS/Windows) before build 39870, Acronis Cyber Protect 16 before build 39938, Acronis Cyber Protect 15 before build 41800. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2025-30410?
Patch to latest builds; apply vendor updates ASAP.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Authentication bypass enables access to and modification of sensitive backup data without valid credentials.
Immediate action required
- affected< 41800
- affected< 39938
- affected< 39870
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.