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Fencer Vulns
high 7.2

CVE-2021-39474 json

Vulnerability in the product Docsis 3.0 UBC1319BA00 Router supported affected version 1319010201r009.

published 2021-11-10 4 y ago modified 2026-06-17 4 mo ago also EUVD-2021-25832

cvss
7.2
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
2.0%
EPSS 2.0% chance of exploitation in 30 days, percentile 81%
public exploits
0
none known

Summary

Vulnerability in the product Docsis 3.0 UBC1319BA00 Router supported affected version 1319010201r009. The vulnerability allows an attacker with privileges and network access through the ping.cmd component to execute commands on the device.

Exploit prediction

2.01% chance of exploitation in the next 30 days, higher than 81% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • saikotwolf.medium.com https://saikotwolf.medium.com/f9ed24e14e51 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.1 7.2 CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 9.0 AV:N/AC:L/Au:S/C:C/I:C/A:C

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.