How severe is CVE-2021-21546?

CVE-2021-21546 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2021-21546 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (15th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-21546?

CVE-2021-21546 primarily affects Dell Emc Networker. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2021-21546?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2021-21546 published?

CVE-2021-21546 was published on 2021-07-29 and last updated on 2026-06-17.

CVE-2021-21546

CVE-2021-21546 is a high-severity vulnerability in Dell Emc Networker with a CVSS 3.x base score of 7.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-532.

Key facts

Severity: High (CVSS 3.x base score 7.8)
CVSS v2: 2.1
EPSS exploit prediction: 0% (15th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-532
Affected product: Dell Emc Networker
Published: 2021-07-29
Last modified: 2026-06-17

Description

Dell EMC NetWorker versions 18.x,19.x prior to 19.3.0.4 and 19.4.0.0 contain an Information Disclosure in Log Files vulnerability. A local low-privileged user of the Networker server could potentially exploit this vulnerability to read plain-text credentials from server log files.

Frequently asked questions

What is CVE-2021-21546?: Dell EMC NetWorker versions 18.x,19.x prior to 19.3.0.4 and 19.4.0.0 contain an Information Disclosure in Log Files vulnerability. A local low-privileged user of the Networker server could potentially exploit this vulnerability to read plain-text credentials from server log files.
How severe is CVE-2021-21546?: CVE-2021-21546 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2021-21546 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (15th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-21546?: CVE-2021-21546 primarily affects Dell Emc Networker. In total, 5 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2021-21546?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2021-21546 published?: CVE-2021-21546 was published on 2021-07-29 and last updated on 2026-06-17.

References

https://www.dell.com/support/kbdoc/en-us/000185470/dsa-2021-081-dell-emc-networker-security-update-for-a-clear-text-vulnerability

Affected products (5)

cpe:2.3:a:dell:emc_networker:*:*:*:*:*:*:*:*
cpe:2.3:a:dell:emc_networker:18.1.0.1:*:*:*:*:*:*:*
cpe:2.3:a:dell:emc_networker:18.1.0.2:*:*:*:*:*:*:*
cpe:2.3:a:dell:emc_networker:18.2.0.0:*:*:*:*:*:*:*
cpe:2.3:a:dell:emc_networker:19.4.0.0:*:*:*:*:*:*:*

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CVE-2017-8023 — Critical (CVSS 9.8): EMC NetWorker may potentially be vulnerable to an unauthenticated remote code execution vulnerability in the Networker…
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