Description

A privilege escalation vulnerability existed in the Below service prior to v0.9.0 due to the creation of a world-writable directory at /var/log/below. This could have allowed local unprivileged users to escalate to root privileges through symlink attacks that manipulate files such as /etc/shadow.

INFO

Published Date :

2025-03-11T18:29:21.569Z

Last Modified :

2025-03-21T20:38:10.292Z

Source :

facebook
AFFECTED PRODUCTS

The following products are affected by CVE-2025-27591 vulnerability.

Vendors Products
Facebook
  • Below
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2025-27591.

URL Resource
http://www.openwall.com/lists/oss-security/2025/03/12/1 cve-icon
https://github.com/facebookincubator/below/commit/da9382e6e3e332fd2c3195e22f34977f83f0f1f3 cve-icon cve-icon
https://www.facebook.com/security/advisories/cve-2025-27591 cve-icon cve-icon
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CVSS Vulnerability Scoring System

Detailed values of each vector for above chart.
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact