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CVE-2025-27591RUSTSEC-2025-0149GHSA-9MC5-7QHG-FP3W

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/

Published
Last modified
published
Not listed in CISA KEV
Fix
Fixed in 0.9.0
19 proofs of concept on GitHub
  • Exploitation: none
  • Automatable: no
  • Technical impact: total

Summary

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.

Timeline

  1. CVE published
  2. CISA SSVC assessment

    Exploitation: none · Automatable: no · Technical impact: total

  3. Record last updated

Affected versions

  • Meta Platforms, Inc below

    From 0.0.0 · fixed in 0.9.0

  • belowcrates.io

    From 0.0.0-0 · fixed in 0.9.0

  • belowcrates.io

    fixed in 0.9.0

References 21

facebook.com

GitHub · facebookincubator/below

GitHub · 00xCanelo/CVE-2025-27591

GitHub · 0x00Jeff/CVE-2025-27591

GitHub · 0xDTC/Below-Logger-Symlink-Attack_CVE-2025-27591

GitHub · BridgerAlderson/CVE-2025-27591-PoC

GitHub · Cythonic1/CVE-2025-27591

GitHub · MoTechStore/CVE-2025-27591-PoC

GitHub · Stp1t/CVE-2025-27591

GitHub · Thekin-ctrl/CVE-2025-27591-Below

GitHub · VisaiCyber/CVE-2025-27591-below-

GitHub · alialucas7/CVE-2025-27591_PoC

GitHub · danil-koltsov/below-log-race-poc

GitHub · dollarboysushil/Linux-Privilege-Escalation-CVE-2025-27591

GitHub · incommatose/CVE-2025-27591-PoC

GitHub · krn966/CVE-2025-27591

GitHub · obamalaolu/CVE-2025-27591

GitHub · rippsec/CVE-2025-27591-Meta-below-LPE

GitHub · rvzsec/CVE-2025-27591

GitHub · sefafl77/CVE-2025-27591-PoC

GitHub · umutcamliyurt/CVE-2025-27591