01 Record

CVE-2021-28498

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

HighPUBLISHEDCNA: Arista

CNA base score8.7 CVSS v3.xCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:H/A:H

View raw JSON

02 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

03 Exploitation and scoring

Exploitation: Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
SSVC decision: Not assessed by CISA
EPSS probability: 0.22% probability of exploitation activity in the next 30 days.
EPSS percentile: Equal to or higher than the score of 12.6% of scored records. A rank, not a probability.
NVD base score: 7.8 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
NVD analysis status: Modified. NVD last modified this record on 2026-06-17.
Red Hat severity: No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published

2021-09-09 12:38Z5 YR AGO

Last updated

2024-08-03 21:47Z2 YR AGO

Reserved

2021-03-16

Assigning CNA

Arista

Record state

PUBLISHED

Severity

High (CVSS 8.7)

CNA CVSS vector

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

Weaknesses

CWE-255
CWE-522Insufficiently Protected CredentialsClass

Data version

5.1

Document digest

706c3bf9b2ec0650b35ad64c4e1792114f87bbd9f1e637277e9ca2ff9867f100

05 Affected products

VendorProductVersionsPlatforms

AristaMetamako Operating SystemMOS-0.13 to < MOS-0.13*, MOS-0.26.7 to < MOS-0.26.7, MOS-0.32.0 to < MOS-0.32.0Arista 7130 Systems running MOS

06 References

www.arista.comhttps://www.arista.com/en/support/advisories-notices/security-advisories/12912-security-advisory-64x_refsource_MISC

07 Remediation

Upgrade to MOS-0.26.7 or MOS-0.32.0

Install hotfix stored at https://www.arista.com/assets/data/SecurityAdvisories/SA64-67/SecurityAdvisory64-67-Hotfix-mos-1818-2.0.0-1.11.core2_64.rpm For detailed information about hotfix installation, please see the advisory https://www.arista.com/en/support/advisories-notices/security-advisories/12912-security-advisory-64