01 Record
CVE-2026-73455
Security Advisory 0173
HighPUBLISHEDCNA: Arista
CNA base score8.9 CVSS v4.0CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H
02 Description
Security Advisory 0173
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- Not scored by EPSS
- EPSS percentile
- Not scored by EPSS
- NVD base score
- The NVD has published no score for this record
- NVD CVSS vector
- No NVD score to derive
- NVD analysis status
- Not recorded
- Red Hat severity
- No Red Hat rating. Red Hat rates the CVEs that affect its products.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2026-09-16 09:46Z50 MIN AGO
- Last updated
- 2026-09-16 09:46Z50 MIN AGO
- Reserved
- 2026-08-12
- Assigning CNA
- Arista
- Record state
- PUBLISHED
- Severity
- High (CVSS 8.9)
- CNA CVSS vector
- CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H
- Weaknesses
- CWE-130Improper Handling of Length Parameter InconsistencyBase
- Data version
- 5.2
- Document digest
- faf6b2c2106f6b2860108d241047144a63c7ec491aa4bedc87e3ed70259fff22
05 Affected products
VendorProductVersionsPlatforms
Arista NetworksEOS1.0.0 to < 4.33.0F, 4.33.0F to 4.33.8M, 4.34.0F to 4.34.6M, 4.35.0F to 4.35.4M, 4.36.0F to 4.36.0.1F—
06 References
07 Remediation
The following EOS releases contain the fix: - 4.33.9M and later in the 4.33.x train - 4.34.7M and later in the 4.34.x train - 4.35.5M and later in the 4.35.x train - 4.36.1F and later in the 4.36.x train A hotfix (version 1.0) is available for 4.36.0.1F, 4.35.4M, 4.34.6M, and 4.33.8M.