Strix
26.1K

CVE-2020-15897

HIGHCVSS 7.5/10EPSS 1.26%

Last modified

CVE-2020-15897 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. Arista EOS before 4.21.12M, 4.22.x before 4.22.7M, 4.23.x before 4.23.5M, and 4.24.x before 4.24.2F allows remote attackers to cause traffic loss or incorrect forwarding of traffic via a malformed link-state PDU to the IS-IS router.. EPSS estimates a 1.26% chance of exploitation in the next 30 days.

Description

Arista EOS before 4.21.12M, 4.22.x before 4.22.7M, 4.23.x before 4.23.5M, and 4.24.x before 4.24.2F allows remote attackers to cause traffic loss or incorrect forwarding of traffic via a malformed link-state PDU to the IS-IS router.

Metrics

CVSS 3.1
7.5/10

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

EPSS Probability
1.26%

65.9th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

VendorProductVersions
AristaEos< 4.21.12m
AristaEos>= 4.22, < 4.22.7m
AristaEos>= 4.23, < 4.23.5m
AristaEos>= 4.24, < 4.24.2f

References

Timeline

Published
Last Modified
Status
Modified

Frequently Asked Questions

What is CVE-2020-15897?
Arista EOS before 4.21.12M, 4.22.x before 4.22.7M, 4.23.x before 4.23.5M, and 4.24.x before 4.24.2F allows remote attackers to cause traffic loss or incorrect forwarding of traffic via a malformed link-state PDU to the IS-IS router.
How severe is CVE-2020-15897?
CVE-2020-15897 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 1.26% probability of exploitation in the next 30 days.
How do I fix CVE-2020-15897?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2020-15897?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST