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Fencer Intel
high 8.2

CVE-2021-21558 json

Dell EMC NetWorker, 18.x, 19.1.x, 19.2.x 19.3.x, 19.4 and 19.4.0.1, contains an Information Disclosure vulnerability.

published 5y ago modified 4mo ago also EUVD-2021-8830

cvss
8.2
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.3%
EPSS 0.3% chance of exploitation in 30 days, percentile 16%
public exploits
0
none known

Summary

Dell EMC NetWorker, 18.x, 19.1.x, 19.2.x 19.3.x, 19.4 and 19.4.0.1, contains an Information Disclosure vulnerability. A local administrator of the gstd system may potentially exploit this vulnerability to read LDAP credentials from local logs and use the stolen credentials to make changes to the network domain.

Patch / fix

  • Dell NetWorker 19.4.0.2

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Exploit prediction

0.25% chance of exploitation in the next 30 days, higher than 16% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
CNA 3.1 8.2 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H
NVD 3.1 4.4 CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
NVD 2.0 2.1 AV:L/AC:L/Au:N/C:P/I:N/A:N

Affected products

  • Dell NetWorker

Classification

Weakness
  • CWE-532 Insertion of Sensitive Information into Log File

References

Sources

Fencer Intel 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.