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VulnerabilityPublished

CVE-2025-11791: Acronis Cyber Protect 17 · Missing Authorization

Affects Acronis Cyber Protect 17Source CVE Database V5

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Not known to be exploited · CVSS 5.5 Medium : upgrade to 41186 when convenient.

Data as of 30 Oct 2026, 11:52 UTC

CVSS 3.0 base score
5.5Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.09% chance of exploitation in 30 days – higher than 0% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 41186, 41124
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 5 Mar 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 30 Oct 2026.

What to do

Upgrade Acronis Cyber Protect to 41186 (17) or 41124 (Cloud Agent).

Affected software

ProductAffectedFixed in
AcronisAcronis Cyber Protect 17Affected
  • ≥ unspecified, < 41186
Fixed in
  • 41186
AcronisAcronis Cyber Protect Cloud AgentAffected
  • ≥ unspecified, < 41124
Fixed in
  • 41124

AI-suggested

If you cannot patch yet, organizations should implement strict access control policies to limit local user privileges on systems running Acronis Cyber Protect 17 and Cloud Agent. Employ role-based access controls to ensure only trusted administrators have modification rights. Monitor logs and audit trails for unusual activities related to backup and security data manipulation. Consider isolating backup management systems from general user environments to reduce attack surface. Regularly review and update endpoint security measures to prevent unauthorized local access. Additionally, conduct internal security awareness training to highlight risks of privilege misuse and enforce strong authentication mechanisms to reduce risk of unauthorized local access. Engage with Acronis support channels for updates on remediation and best practices.

Description

Sensitive information disclosure and manipulation due to insufficient authorization checks. The following products are affected: Acronis Cyber Protect 17 (Linux, macOS, Windows) before build 41186, Acronis Cyber Protect Cloud Agent (Linux, macOS, Windows) before build 41124.

References

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