CVE-2026-102162
Received
Published: 06 Oct 2026, 19:40
Last modified:06 Oct 2026, 20:06
Vulnerability Summary
Overall Risk (default)
high
70/100 CVSS Score
9.4 CRITICAL
v4.0 (cve.org)
EPSS Score
No data
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected
Timeline
06 Oct 2026, 19:40
Published
Vulnerability first disclosed
06 Oct 2026, 20:06
Last Modified
Vulnerability information updated
Description
On affected Arista Wi-Fi access points with captive portal, or application firewall enabled on at least one SSID, a vulnerability in the wireless gateway service could allow an unauthenticated network-adjacent attacker to send a crafted packet that triggers a stack overflow, resulting in a denial-of-service condition or potentially execute arbitrary code on the device. The wireless gateway service is automatically restarted after a crash, allowing repeated exploitation attempts.
CVSS Metrics
- v4.0•CRITICAL•Score: 9.4CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H
- v4.0•CRITICAL•Score: 9.4CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/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
- v3.1•HIGH•Score: 8.8CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Techniques & Countermeasures
- CWE-121•Stack-based Buffer Overflow
A stack-based buffer overflow condition is a condition where the buffer being overwritten is allocated on the stack (i.e., is a local variable or, rarely, a parameter to a function).
Affected Systems
- arista networks•wi-fi access points
≥ 22.0.0, ≤ 22.0.1F-32 | ≥ 21.3.0, ≤ 21.3.0M-13 | ≥ 1.0.0, < 21.3.0