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Fencer Vulns
critical 9.8

CVE-2020-17456 in the critical feed json

SEOWON INTECH SLC-130 And SLR-120S devices allow Remote Code Execution via the ipAddr parameter to the system_log.cgi page.

published 2020-08-19 6 y ago modified 2026-06-17 4 mo ago also EUVD-2020-9408

cvss
9.8
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
74.2%
EPSS 74.2% chance of exploitation in 30 days, percentile 99.4%
public exploits
1
Exploit-DB, plus a Nuclei check

Summary

SEOWON INTECH SLC-130 And SLR-120S devices allow Remote Code Execution via the ipAddr parameter to the system_log.cgi page.

Timeline

  1. Published
  2. First public exploit (EDB-50821)

Exploit prediction

74.23% chance of exploitation in the next 30 days, higher than 99.4% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • EDB-50821 Seowon SLR-120 Router - Remote Code Execution (Unauthenticated) remote, 2022-03-11
  • Nuclei template SEOWON INTECH SLC-130 & SLR-120S - Unauthenticated Remote Code Execution nuclei detection template
  • maj0rmil4d.github.io https://maj0rmil4d.github.io/Seowon-SlC-130-And-SLR-120S-Exploit/ referenced PoC, tagged "exploit" by a source, unverified
  • github.com https://github.com/TAPESH-TEAM/CVE-2020-17456-Seowon-SLR-120S42G-RCE-Exploit-Unauthenticated referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 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 7.5 AV:N/AC:L/Au:N/C:P/I:P/A:P

Classification

Weakness
  • CWE-78 Improper Neutralization of Special Elements used in an OS Command

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.