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Fencer Vulns
critical 9.8

CVE-2020-5847 kev in the critical feed json

Unraid through 6.8.0 allows Remote Code Execution.

published 2020-03-16 6 y ago modified 2026-06-17 4 mo ago also EUVD-2020-27001

cvss
9.8
version 3.1, CNA
cisa kev
Exploited
added 2021-11-03
epss
95.8%
EPSS 95.8% chance of exploitation in 30 days, percentile 99.8%
public exploits
2
Metasploit, Exploit-DB, plus a Nuclei check

Summary

Unraid through 6.8.0 allows Remote Code Execution.

Patch / fix

cisa required action Apply updates per vendor instructions.

Timeline

  1. First public exploit (Metasploit exploit/linux/http/unraid_auth_bypass_exec)
  2. Published
  3. Added to CISA KEV
  4. CISA patch deadline
  5. CISA SSVC: exploitation active

Known exploited

Added
5 y ago
Patch by
2022-05-03 (4 y ago)
Ransomware
Not known
Required action
Apply updates per vendor instructions.
Vendor, product
Unraid, Unraid
CISA name
Unraid Remote Code Execution Vulnerability

CISA SSVC

Exploitation
Active, exploited in the wild
Automatable
yes
Technical impact
total
Assessed
21 mo ago

Exploit prediction

95.84% chance of exploitation in the next 30 days, higher than 99.8% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • Metasploit exploit/linux/http/unraid_auth_bypass_exec Unraid 6.8.0 Auth Bypass PHP Code Execution metasploit exploit, excellent rank, 2020-02-10
  • EDB-48353 Unraid 6.8.0 - Auth Bypass PHP Code Execution (Metasploit) remote, 2020-04-20
  • Nuclei template UnRaid <=6.80 - Remote Code Execution nuclei detection template
  • sysdream.com https://sysdream.com/news/lab/2020-02-06-cve-2020-5847-cve-2020-5849-unraid-6-8-0-unauthenticated-remote-code-execution-as-root/ referenced PoC, tagged "exploit" by a source, unverified
  • packetstormsecurity.com http://packetstormsecurity.com/files/157275/Unraid-6.8.0-Authentication-Bypass-Arbitrary-Code-Execution.html referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CISA ADP 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CNA 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 10.0 AV:N/AC:L/Au:N/C:C/I:C/A:C

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.