Is CVE-2021-28498 in the CISA KEV catalog?

No. CVE-2021-28498 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-28498?

CVE-2021-28498 has a CVSS v3 base score of 8.7 (HIGH).

What is the EPSS score for CVE-2021-28498?

CVE-2021-28498 has an EPSS score of 0.21% (12th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-28498?

Upgrade metamako operating system to 0.32.0 or later.

CVE & CISA-KEV Catalog

CVE-2021-28498

HIGH

8.7

CVSS v3

NVD

Description

In Arista's MOS (Metamako Operating System) software which is supported on the 7130 product line, user enable passwords set in clear text could result in unprivileged users getting complete access to the systems. This issue affects: Arista Metamako Operating System MOS-0.13 and post releases in the MOS-0.1x train MOS-0.26.6 and prior releases in the MOS-0.2x train MOS-0.31.1 and prior releases in the MOS-0.3x train

CWE-255 CWE-522

How to fix

Remediation Available

metamako operating systemNVD

Affected:>= 0.31.0, < 0.32.0Fixed in:0.32.0CVE-2021-28498derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorLocal

Attack ComplexityLow

Privileges RequiredLow

User InteractionNone

ScopeChanged

Impact

ConfidentialityLow

IntegrityHigh

AvailabilityHigh

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:H/A:H

Exploit Intelligence

0.21%probability of exploitation in 30 days

12thpercentile

Low risk: more likely to be exploited than 12% of all known CVEs.

References

Vendor Advisory1

arista.com

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.