CVE-2026-73454: CWE-77 Improper Neutralization of Special Elements used in a Command ('Command Injection') in Arista Networks EOS
On affected platforms running Arista EOS with gRPC Network Security Interface (gNSI) Credentialz configured, a specially crafted request can cause unintended modifications to the target account's properties. This may result in the account being assigned elevated privileges or access beyond what an administrator intended.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-73454) involves improper neutralization of special elements used in a command (CWE-77) within Arista EOS when gNSI Credentialz is configured. A crafted request can manipulate account properties, leading to privilege escalation. The CVSS 3.1 score is 8.1 (high), indicating network attack vector, low attack complexity, requiring low privileges, no user interaction, unchanged scope, and high confidentiality and integrity impact with no availability impact.
Potential Impact
Successful exploitation allows an attacker with some privileges to escalate account privileges or gain unauthorized access beyond intended administrative controls. This can compromise the confidentiality and integrity of the system without affecting availability.
Mitigation Recommendations
No explicit patch or remediation details are provided in the input data. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, restrict access to gNSI Credentialz interfaces and monitor for suspicious requests related to account property changes.
CVE-2026-73454: CWE-77 Improper Neutralization of Special Elements used in a Command ('Command Injection') in Arista Networks EOS
Description
On affected platforms running Arista EOS with gRPC Network Security Interface (gNSI) Credentialz configured, a specially crafted request can cause unintended modifications to the target account's properties. This may result in the account being assigned elevated privileges or access beyond what an administrator intended.
CVSS v3.1
Score 8.1high
Affected software
Arista Networks
EOS
pkg:github/arista-networks/eosRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-73454) involves improper neutralization of special elements used in a command (CWE-77) within Arista EOS when gNSI Credentialz is configured. A crafted request can manipulate account properties, leading to privilege escalation. The CVSS 3.1 score is 8.1 (high), indicating network attack vector, low attack complexity, requiring low privileges, no user interaction, unchanged scope, and high confidentiality and integrity impact with no availability impact.
Potential Impact
Successful exploitation allows an attacker with some privileges to escalate account privileges or gain unauthorized access beyond intended administrative controls. This can compromise the confidentiality and integrity of the system without affecting availability.
Mitigation Recommendations
No explicit patch or remediation details are provided in the input data. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, restrict access to gNSI Credentialz interfaces and monitor for suspicious requests related to account property changes.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Arista
- Date Reserved
- 2026-08-12T16:42:47.921Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6aaa540255bf5e2cf53c614d
Added to database: 09/16/2026, 08:32:02 UTC
Last enriched: 09/16/2026, 08:46:36 UTC
Last updated: 09/17/2026, 03:43:27 UTC
Views: 11
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
External Links
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.