No exploitation reportedFix available

CVE-2023-35802

Q: Is CVE-2023-35802 actively exploited?

Active exploitation of CVE-2023-35802 has not been confirmed. Its EPSS score was 1.1% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

Q: What is the CVSS score for CVE-2023-35802?

CVE-2023-35802 has a CVSS v3 base score of 9.8 (CRITICAL severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

No exploitation reported by the sources we read.

Published2023-07-15
Fixed in10.6r1 · 10.6r5 · 10.6r2
WeaknessCWE-120

Am I affected?

With a domain, we read the version its public headers and pages expose. A distribution build can carry the fix under an older number.

Description

IQ Engine before 10.6r1 on Extreme Network AP devices has a Buffer Overflow in the implementation of the CAPWAP protocol that may be exploited to obtain elevated privileges to conduct remote code execution. Access to the internal management interface/subnet is required to conduct the exploit.

Timeline

dates in UTC

2023-07-1502:15CVE publishedNVD

Observed activity

isMalicious corpus · updated 2026-10-23 18:48 UTC

Indicators tagged with this CVE, per day0 indicators over 7 days

Block these indicators

Firewall list (EDL, text): https://api.ismalicious.com/edl/cve/CVE-2023-35802?format=txt
CSV export: https://api.ismalicious.com/edl/cve/CVE-2023-35802?format=csv
TAXII collection of exploited CVEs
The EDL and CSV take an API key on the Pro plan.

Versions per branch

NVD · CISA-ADP

Extremenetworks iq engineversion to verify

Branch	Affected	Fixed in	Source
10.6	< 10.6r1	10.6r1	NVD
10.6	< 10.6r5	10.6r5	NVD
10.6	< 10.6r2	10.6r2	CISA-ADP

as publishedRanges as NVD and OSV publish them; a distribution’s build can be fixed under an older number.

Fix

Update Extremenetworks iq engine to 10.6r1 · 10.6r5 · 10.6r2

Advisories and patches

extremeportal.force.comVendor Advisory

Detection

Nuclei template: none so far
Exploit-DB: no entry
Proof-of-concept repositories: none listed

Sources

CISA-ADPSSVC decisionnone2024-10-30
OpenCVESSVC decisionnone—
NVDCVSS 3.19.8read 2026-10-23
NVDweakness (CWE)CWE-120read 2026-10-23
FIRST EPSSEPSS score1.1 %2026-10-22

Technical details

CVSS v3 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Published: 2023-07-15
Last Modified: 2026-06-17
NVD status: Modified

Frequently asked questions

What is CVE-2023-35802?

Is CVE-2023-35802 actively exploited?

Active exploitation of CVE-2023-35802 has not been confirmed. Its EPSS score was 1.1% on 2026-10-22, the estimated probability of exploitation in the next 30 days.

What is the CVSS score for CVE-2023-35802?

CVE-2023-35802 has a CVSS v3 base score of 9.8 (CRITICAL severity), with vector string CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

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