How severe is CVE-2020-9015?

CVE-2020-9015 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2020-9015 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 16% (97th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-9015?

CVE-2020-9015 primarily affects Arista Dcs-7050qx-32s-r Firmware. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2020-9015?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2020-9015 published?

CVE-2020-9015 was published on 2020-02-20 and last updated on 2026-06-17.

CVE-2020-9015

CVE-2020-9015 is a critical-severity vulnerability in Arista Dcs-7050qx-32s-r Firmware with a CVSS 3.x base score of 9.8. Its EPSS exploit-prediction score of 16% places it in the 97th percentile, indicating an elevated likelihood of exploitation.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 16% (97th percentile)
Actively exploited: Not listed in CISA KEV
Affected product: Arista Dcs-7050qx-32s-r Firmware
Published: 2020-02-20
Last modified: 2026-06-17

Description

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

Frequently asked questions

What is CVE-2020-9015?: 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
How severe is CVE-2020-9015?: CVE-2020-9015 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2020-9015 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 16% (97th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-9015?: CVE-2020-9015 primarily affects Arista Dcs-7050qx-32s-r Firmware. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2020-9015?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2020-9015 published?: CVE-2020-9015 was published on 2020-02-20 and last updated on 2026-06-17.

References

Affected products (3)

cpe:2.3:o:arista:dcs-7050qx-32s-r_firmware:4.20.9m:*:*:*:*:*:*:*
cpe:2.3:o:arista:dcs-7050cx3-32s-r_firmware:4.20.11m:*:*:*:*:*:*:*
cpe:2.3:o:arista:dcs-7280sram-48c6-r_firmware:4.22.0.1f:*:*:*:*:*:*:*