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CVE-2026-120975

LOWCVSS 3.1/10EPSS 0.11%

Last modified

CVE-2026-120975 is a low-severity vulnerability rated 3.1/10 on the CVSS scale. On affected platforms running Arista EOS with automatic certificate management configured and automatic Certificate Authority (CA) certificate retrieval enabled, a malicious packet may cause the AutoCertMgmt process to be terminated unexpectedly. Managed X.509 certificates will not be renewed automatically and may eventually expire, potentially disrupting TLS-dependent services.. EPSS estimates a 0.11% chance of exploitation in the next 30 days.

Description

On affected platforms running Arista EOS with automatic certificate management configured and automatic Certificate Authority (CA) certificate retrieval enabled, a malicious packet may cause the AutoCertMgmt process to be terminated unexpectedly. Managed X.509 certificates will not be renewed automatically and may eventually expire, potentially disrupting TLS-dependent services.

Metrics

CVSS 3.1
3.1/10

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

CVSS 4.0
2/10

CVSS:4.0/AV:N/AC:H/AT:N/PR:H/UI:P/VC:N/VI:L/VA:L/SC:N/SI:L/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

EPSS Probability
0.11%

1.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
Arista NetworksEOS>= 4.36.1F, <= 4.36.1F

References

Timeline

Published
Last Modified
Status
Awaiting Analysis

Frequently Asked Questions

What is CVE-2026-120975?
On affected platforms running Arista EOS with automatic certificate management configured and automatic Certificate Authority (CA) certificate retrieval enabled, a malicious packet may cause the AutoCertMgmt process to be terminated unexpectedly. Managed X.509 certificates will not be renewed automatically and may eventually expire, potentially disrupting TLS-dependent services.
How severe is CVE-2026-120975?
CVE-2026-120975 has a CVSS score of 3.1/10 (LOW severity). The EPSS model estimates a 0.11% probability of exploitation in the next 30 days.
How do I fix CVE-2026-120975?
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.

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Source: NVD / NIST