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CVE-2023-35803

31
FAUCET Score

CVE-2023-35803 is a critical buffer overflow vulnerability affecting Extreme Networks AP devices running IQ Engine prior to version 10.6r2. With a CVSS score of 9.8, this flaw allows unauthenticated remote attackers to execute arbitrary code with high impact on confidentiality, integrity, and availability, requiring no user interaction. While there is no confirmed active exploitation or public exploit code (Metasploit, Nuclei, ExploitDB), the vulnerability has garnered some community discussion, indicating awareness within security circles. Organizations using affected Extreme Networks APs should prioritize patching to mitigate this severe risk.

Impacted Technologies

VendorProductVersion(s)CPE
< 10.6r2CPE matchmatch criteria
cpe:2.3:o:extremenetworks:iq_engine:*:*:*:*:*:*:*:*
< 10.6r5CPE matchmatch criteria
cpe:2.3:o:extremenetworks:iq_engine:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

9.8CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
3.9
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.54%
Probability of exploitation in next 30 days
EPSS Percentile
72.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-25
Model: v2026.06.15
This CVE's current EPSS score of 0.0154 is in the 59th percentile among its peer group of 36,833 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

community.extremenetworks.com / t5/security-advisories-formerly/sa-2023-067-iq-engine-acsd-service-buffer-overflow-cve-2023/ba-p/96472
Vendor Advisory