Vulnerability Details CVE-2025-27591
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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.0
EPSS Ranking 3.8%
CVSS Severity
CVSS v3 Score 6.8
References
Products affected by CVE-2025-27591
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cpe:2.3:a:facebook:below:0.2.0
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cpe:2.3:a:facebook:below:0.3.0
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cpe:2.3:a:facebook:below:0.4.0
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cpe:2.3:a:facebook:below:0.4.1
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cpe:2.3:a:facebook:below:0.5.0
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cpe:2.3:a:facebook:below:0.6.0
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cpe:2.3:a:facebook:below:0.6.1
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cpe:2.3:a:facebook:below:0.6.2
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cpe:2.3:a:facebook:below:0.6.3
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cpe:2.3:a:facebook:below:0.7.0
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cpe:2.3:a:facebook:below:0.7.1
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cpe:2.3:a:facebook:below:0.8.0
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cpe:2.3:a:facebook:below:0.8.1