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VulnerabilityPublished Updated

CVE-2026-28717: Acronis Cyber Protect 17 · CWE-276

Affects Acronis Cyber Protect 17Source CVE Database V5

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Not known to be exploited · CVSS 5.0 Medium : upgrade to 41186 when convenient.

Data as of 29 Oct 2026, 19:04 UTC

CVSS 3.0 base score
5.0Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.1% chance of exploitation in 30 days – higher than 1% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 41186
CVSS:3.0/AV:L/AC:L/PR:L/UI:R/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 29 Oct 2026.

What to do

Upgrade Acronis Cyber Protect 17 to 41186.

Affected software

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

AI-suggested

Until an official patch is released by Acronis, organizations should implement the following mitigations: 1) Restrict local user access to systems running Acronis Cyber Protect 17 to trusted personnel only, minimizing the risk of local exploitation. 2) Manually audit and tighten directory permissions associated with the Acronis Cyber Protect installation, ensuring that only authorized system accounts have write or modify access. 3) Employ application whitelisting and endpoint protection solutions to detect and block unauthorized attempts to modify Acronis directories or execute suspicious scripts. 4) Monitor system logs and Acronis application logs for unusual activity indicative of privilege escalation attempts. 5) Educate users about the risks of executing untrusted files or scripts on systems with Acronis Cyber Protect installed. 6) Plan for rapid deployment of the official patch once available, including testing in controlled environments to verify remediation. 7) Consider isolating critical backup servers from general user access and enforcing strict access control policies. These steps go beyond generic advice by focusing on permission hardening, access restriction, and proactive monitoring tailored to the vulnerability's characteristics.

Description

Local privilege escalation due to improper directory permissions. The following products are affected: Acronis Cyber Protect 17 (Windows) before build 41186.

References

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