Arista DCS-7050QX-32S-R 4.20.9M, DCS-7050CX3-32S-R 4.20.11M, and DCS-7280SRAM-48C6-R 4.22.0.1F devices (and possibly other products) allow…

published 2020-02-20 6y ago modified 2026-06-17 4mo ago also EUVD-2020-29846

cvss: 9.8; version 3.1, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 16.5%; EPSS 16.5% chance of exploitation in 30 days, percentile 97%
public exploits: 1; Metasploit

Arista DCS-7050QX-32S-R 4.20.9M, DCS-7050CX3-32S-R 4.20.11M, and DCS-7280SRAM-48C6-R 4.22.0.1F devices (and possibly other products) allow attackers to bypass intended TACACS+ shell restrictions via a | character. NOTE: the vendor reports that this is a configuration issue relating to an overly permissive regular expression in the TACACS+ server permitted commands

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Timeline

2020-02-02 First public exploit (Metasploit exploit/unix/ssh/arista_tacplus_shell)
2020-02-20 Published

Exploit prediction

16.46% chance of exploitation in the next 30 days, higher than 97% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

Metasploit exploit/unix/ssh/arista_tacplus_shell Arista restricted shell escape (with privesc) metasploit exploit, great rank, 2020-02-02

CVSS scores

assigned by	version	score	vector
NVD	3.1	9.8	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD	2.0	7.5	AV:N/AC:L/Au:N/C:P/I:P/A:P

References

securitybytes.me
third-party-advisory
securitybytes.me /posts/cve-2020-9015/
broken-link
eos.arista.com /arista-eos-is-not-vulnerable-to-cve-2020-9015/
packetstormsecurity.com /files/158119/Arista-Restricted-Shell-Escape-Privilege-Escalation.html

Sources

CVE List CVE-2020-9015
NVD CVE-2020-9015

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