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Fencer Vulns
critical 9.8

CVE-2020-29127 json

An issue was discovered on Fujitsu Eternus Storage DX200 S4 devices through 2020-11-25.

published 2020-11-30 5 y ago modified 2026-06-17 4 mo ago also EUVD-2020-21509

cvss
9.8
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
4.5%
EPSS 4.5% chance of exploitation in 30 days, percentile 91%
public exploits
0
none known

Summary

An issue was discovered on Fujitsu Eternus Storage DX200 S4 devices through 2020-11-25. After logging into the portal as a root user (using any web browser), the portal can be accessed with root privileges when the URI cgi-bin/csp?cspid={XXXXXXXXXX}&csppage=cgi_PgOverview&csplang=en is visited from a different web browser.

Exploit prediction

4.47% chance of exploitation in the next 30 days, higher than 91% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • packetstormsecurity.com http://packetstormsecurity.com/files/160255/Fujitsu-Eternus-Storage-DX200-S4-Broken-Authentication.html referenced PoC, tagged "exploit" by a source, unverified
  • cxsecurity.com https://cxsecurity.com/issue/WLB-2020110215 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 10.0 AV:N/AC:L/Au:N/C:C/I:C/A:C

Classification

Weakness

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.