CVE-2023-38926Public exploitNetwork attack vector

Buffer overflow via unvalidated SSID parameter

Published Aug 7, 2023 · Updated Oct 11, 2024

Buffer overflow in NETGEAR EX6200v1 firmware 1.0.3.94 allows remote authenticated users to disrupt or compromise the appliance via wla_temp_ssid. The web management CGI passes this unvalidated parameter through acosNvramConfig_set, where an oversized value reaches blk_getssid and overruns a buffer. Authenticated access to the management interface is required; successful exploitation can corrupt process memory and affect confidentiality, integrity, and availability.

CVSS severity8.8
High
EPSS probability0.96%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Buffer overflow in NETGEAR EX6200v1 firmware 1.0.3.94 allows remote authenticated users to disrupt or compromise the appliance via wla_temp_ssid. The web management CGI passes this unvalidated parameter through acosNvramConfig_set, where an oversized value reaches blk_getssid and overruns a buffer. Authenticated access to the management interface is required; successful exploitation can corrupt process memory and affect confidentiality, integrity, and availability.

The record

CVE
CVE-2023-38926
Published
Aug 7, 2023
Updated
Oct 11, 2024
Vendor
NETGEAR
Product
NETGEAR EX6200v1
Classifications
CWE-120, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 7, 2023CVE publishedPublication date reported by the CVE source.
  2. Oct 11, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=v1.0.3.94

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

NETGEAR · NETGEAR EX6200v1version=v1.0.3.94

Published CVSS scores

8.8NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-120Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
T1190Exploit Public-Facing Application

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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