Skip to content
Fencer Vulns
high 8.8

CVE-2016-10401 in the critical feed json

ZyXEL PK5001Z devices have zyad5001 as the su password, which makes it easier for remote attackers to obtain root access if a non-root acco…

published 2017-07-25 9 y ago modified 2026-06-17 4 mo ago also EUVD-2016-1583

cvss
8.8
version 3.0, NVD
cisa kev
Not listed
not in CISA's catalog
epss
12.3%
EPSS 12.3% chance of exploitation in 30 days, percentile 96%
public exploits
1
Exploit-DB

Summary

ZyXEL PK5001Z devices have zyad5001 as the su password, which makes it easier for remote attackers to obtain root access if a non-root account password is known (or a non-root default account exists within an ISP's deployment of these devices).

Timeline

  1. Published
  2. First public exploit (EDB-43105)

Exploit prediction

12.34% chance of exploitation in the next 30 days, higher than 96% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • EDB-43105 ZyXEL PK5001Z Modem - Backdoor Account remote, 2017-10-31
  • forum.openwrt.org https://forum.openwrt.org/viewtopic.php?id=62266 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.0 8.8 CVSS:3.0/AV:N/AC:L/PR:L/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-255 Credentials Management Errors

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.