CVE-2025-48963

Local privilege escalation via improper symlink handling

Published Aug 28, 2025 · Updated Feb 26, 2026

Local privilege escalation in Acronis Cyber Protect Cloud Agent before build 40296 allows local users to gain elevated privileges. The agent improperly handles a local user-controlled symbolic link during a privileged operation, but Acronis has not disclosed the affected component or exact operation. Exploitation requires low-privileged local access and user interaction, after which the local user obtains privileges beyond the original account.

CVSS severity7.3
High
EPSS probability0.14%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Local privilege escalation in Acronis Cyber Protect Cloud Agent before build 40296 allows local users to gain elevated privileges. The agent improperly handles a local user-controlled symbolic link during a privileged operation, but Acronis has not disclosed the affected component or exact operation. Exploitation requires low-privileged local access and user interaction, after which the local user obtains privileges beyond the original account.

The record

CVE
CVE-2025-48963
Published
Aug 28, 2025
Updated
Feb 26, 2026
Vendor
Acronis
Product
Acronis Cyber Protect Cloud Agent
Classifications
CWE-610, T1068
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 28, 2025CVE publishedPublication date reported by the CVE source.
  2. Feb 26, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=unspecified <40296

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Acronis · Acronis Cyber Protect Cloud Agentversion=unspecified <40296

Published CVSS scores

7.3AcronisCVSS:3.0/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-610Externally Controlled Reference to a Resource in Another Sphere
T1068Exploitation for Privilege Escalation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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