CVE-2023-24096Public exploitNetwork attack vector

Authenticated code execution via oversized password storage

Published Jan 23, 2023 · Updated Apr 2, 2025

Stack-based buffer overflow in TRENDnet TEW-820AP 1.0R firmware 1.01.B01 allows remote authenticated users to execute code. The boa handler for /boafrm/formPasswordSetup accepts an arbitrarily long newpass value and apmib_set stores it as MIB key 183, causing a stack overwrite when the value is read and reused. Reaching the handler requires web-interface authentication; successful exploitation executes code or interrupts the device.

CVSS severity8.8
High
EPSS probability1.04%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stack-based buffer overflow in TRENDnet TEW-820AP 1.0R firmware 1.01.B01 allows remote authenticated users to execute code. The boa handler for /boafrm/formPasswordSetup accepts an arbitrarily long newpass value and apmib_set stores it as MIB key 183, causing a stack overwrite when the value is read and reused. Reaching the handler requires web-interface authentication; successful exploitation executes code or interrupts the device.

The record

CVE
CVE-2023-24096
Published
Jan 23, 2023
Updated
Apr 2, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-121, CWE-787, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jan 23, 2023CVE publishedPublication date reported by the CVE source.
  2. Apr 2, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

8.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
8.8CISA-ADPCVSS: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-121Stack-based Buffer Overflow
CWE-787Out-of-bounds Write
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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