CVE-2023-38591Public exploitNetwork attack vector

Authenticated command injection via oversized SSID parameters

Published Aug 7, 2023 · Updated Oct 11, 2024

Buffer overflows in NETGEAR DG834Gv5 1.6.01.34 allow remote authenticated users to execute commands via crafted SSID parameters. The bsw_ssid.cgi handler stores unvalidated wla_ssid and wla_temp_ssid values, and blk_getssid copies an oversized value without a length check. Access to the router's authenticated management interface is required; a long SSID can inject commands or permanently interrupt service.

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

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Buffer overflows in NETGEAR DG834Gv5 1.6.01.34 allow remote authenticated users to execute commands via crafted SSID parameters. The bsw_ssid.cgi handler stores unvalidated wla_ssid and wla_temp_ssid values, and blk_getssid copies an oversized value without a length check. Access to the router's authenticated management interface is required; a long SSID can inject commands or permanently interrupt service.

The record

CVE
CVE-2023-38591
Published
Aug 7, 2023
Updated
Oct 11, 2024
Vendor
NETGEAR
Product
NETGEAR DG834Gv5
Classifications
CWE-120, T1499.004
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

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=1.6.01.34

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

NETGEAR · NETGEAR DG834Gv5version=1.6.01.34

Published CVSS scores

8.8NIST NVDCVSS: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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

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')
T1499.004Application or System Exploitation

Public exploit references

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

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo