How severe is CVE-2021-21598?

CVE-2021-21598 has a CVSS 3.x base score of 3.9, rated low severity. It is exploitable over physical access with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2021-21598 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (16th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-21598?

CVE-2021-21598 primarily affects Dell Wyse Thinos. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2021-21598?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2021-21598 published?

CVE-2021-21598 was published on 2021-08-10 and last updated on 2026-06-17.

CVE-2021-21598

CVE-2021-21598 is a low-severity vulnerability in Dell Wyse Thinos with a CVSS 3.x base score of 3.9. 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: Low (CVSS 3.x base score 3.9)
CVSS v2: 2.1
EPSS exploit prediction: 0% (16th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-532
Affected product: Dell Wyse Thinos
Published: 2021-08-10
Last modified: 2026-06-17

Description

Dell Wyse ThinOS, versions 9.0, 9.1, and 9.1 MR1, contain a Sensitive Information Disclosure Vulnerability. An authenticated attacker with physical access to the system could exploit this vulnerability to read sensitive Smartcard data in log files.

Frequently asked questions

What is CVE-2021-21598?: Dell Wyse ThinOS, versions 9.0, 9.1, and 9.1 MR1, contain a Sensitive Information Disclosure Vulnerability. An authenticated attacker with physical access to the system could exploit this vulnerability to read sensitive Smartcard data in log files.
How severe is CVE-2021-21598?: CVE-2021-21598 has a CVSS 3.x base score of 3.9, rated low severity. It is exploitable over physical access with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2021-21598 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (16th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-21598?: CVE-2021-21598 primarily affects Dell Wyse Thinos. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2021-21598?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-21598 published?: CVE-2021-21598 was published on 2021-08-10 and last updated on 2026-06-17.

References

https://www.dell.com/support/kbdoc/000189543

Affected products (3)

cpe:2.3:o:dell:wyse_thinos:9.0:*:*:*:*:*:*:*
cpe:2.3:o:dell:wyse_thinos:9.1:*:*:*:*:*:*:*
cpe:2.3:o:dell:wyse_thinos:9.1:mr1:*:*:*:*:*:*

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