This advisory documents the impact of an internally found vulnerability in Arista EOS state streaming telemetry agent TerminAttr and OpenConfig transport protocols. The impact of this vulnerability is that, in certain conditions, TerminAttr might leak MACsec sensitive data in clear text in CVP to other authorized users, which could cause MACsec traffic to be decrypted or modified by other authorized users on the device.
Published 2022-05-26 20:15:09
Updated 2022-06-09 19:08:59
View at NVD,   CVE.org

Products affected by CVE-2021-28509

Exploit prediction scoring system (EPSS) score for CVE-2021-28509

0.07%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 31 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2021-28509

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
3.6
LOW AV:N/AC:H/Au:S/C:P/I:P/A:N
3.9
4.9
NIST
6.1
MEDIUM CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:N
0.9
5.2
NIST
6.1
MEDIUM CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:U/C:H/I:H/A:N
0.9
5.2
Arista Networks, Inc.

CWE ids for CVE-2021-28509

References for CVE-2021-28509

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