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CVE-2016-10401: zyxel pk5001z_firmware Credentials Management Errors

Modified
Published 25-07-2017Last modified 06-08-2024

Vulnerability summary

CVE-2016-10401 is a high (CVSS 9.0) Credentials Management Errors vulnerability in zyxel pk5001z_firmware. EPSS estimates a 12.34% chance of exploitation in the next 30 days, higher than 96.1% of scored vulnerabilities. 2 public exploits are recorded.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
9.0/10
010
High · v2.0 (NVD)
EPSS score
12.34%
0%100%
Medium · +0.23 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits2reference, exploit-database

Timeline

  1. 25-07-2017
    PublishedVulnerability first disclosed.
  2. 06-08-2024
    Last modifiedVulnerability information updated.

Description

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).

CVSS metrics

2 scores · 1 source · 2 versions

EPSS trend

Probability

12.34%

Chance of exploitation in the next 30 days

Percentile

96%

Versus all other CVEs

30-day change

Increase +0.23 pp

From 12.11% on 22-09-2026

22-09-202622-10-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

2 found
  • referenceUnverified

    Exploit Reference (forum.openwrt.org)

    Maturity: unknown

  • exploit-databaseremotehardwareUnverified

    ZyXEL PK5001Z Modem - Backdoor Account

    Maturity: poc

Weaknesses

CWE · root cause

Affected systems

Zyxel1 product

1 vendor · 1 product

References

2 links