CVE-2020-17355
HIGH
7.5
CVSS Score
Published: October 21, 2020 at 09:59 PM UTC
Updated: June 17, 2026 at 02:58 AM UTC
1 product affected across 1 vendorEos
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Severity
HIGH7.5
Exploit prediction
EPSS 1%
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 a denial of service (restart of agents) by crafting a malformed DHCP packet which leads to an incorrect route being installed.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
4.21.0 ≤ v < 4.21.12m4.22 ≤ v < 4.22.7m4.23 ≤ v < 4.23.5m4.24.0 ≤ v < 4.24.2f
Affected range stops below 4.21.12m, so it looks safe — our inference, not a vendor statement
Affected range stops below 4.22.7m, so it looks safe — our inference, not a vendor statement
Affected range stops below 4.23.5m, so it looks safe — our inference, not a vendor statement
Affected range stops below 4.24.2f, so it looks safe — our inference, not a vendor statement
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
References (1)
x_refsource_CONFIRMVendor Advisory
Source: [email protected]
https://www.arista.com/en/support/advisories-notices/security-advisories/11759-security-advisory-53CVSS
- Attack Vector
- NETWORK
- Complexity
- LOW
- Privileges
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- NONE
- Integrity
- NONE
- Availability
- HIGH
Vector?
Quick Info
StatusMODIFIED
CWE
NVD-CWE-noinfo
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