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Fencer Vulns
high 7.5

CVE-2020-15327 json

Zyxel CloudCNM SecuManager 3.1.0 and 3.1.1 uses ZODB storage without authentication.

published 2020-06-26 6 y ago modified 2026-06-17 4 mo ago also EUVD-2020-7324

cvss
7.5
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
1.0%
EPSS 1.0% chance of exploitation in 30 days, percentile 61%
public exploits
0
none known

Summary

Zyxel CloudCNM SecuManager 3.1.0 and 3.1.1 uses ZODB storage without authentication.

Exploit prediction

0.96% chance of exploitation in the next 30 days, higher than 61% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • pierrekim.github.io https://pierrekim.github.io/blog/2020-03-09-zyxel-secumanager-0day-vulnerabilities.html referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.1 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Classification

Weakness
  • CWE-798 Use of Hard-coded Credentials

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.