CVE-2023-36358Network attack vector

Service interruption via crafted management GET request

Published Jun 22, 2023 · Updated Dec 10, 2024

Buffer overflow in TP-Link legacy router firmware allows remote authenticated users to interrupt service via a crafted GET request. The /userRpm/AccessCtrlAccessTargetsRpm handler copies GET-supplied data without enforcing buffer bounds. Authenticated management access is required on TL-WR940N V2/V3/V4, TL-WR941ND V5/V6, TL-WR743ND V1, or TL-WR841N V8; only availability loss is reported.

CVSS severity7.7
High
EPSS probability0.70%
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 TP-Link legacy router firmware allows remote authenticated users to interrupt service via a crafted GET request. The /userRpm/AccessCtrlAccessTargetsRpm handler copies GET-supplied data without enforcing buffer bounds. Authenticated management access is required on TL-WR940N V2/V3/V4, TL-WR941ND V5/V6, TL-WR743ND V1, or TL-WR841N V8; only availability loss is reported.

The record

CVE
CVE-2023-36358
Published
Jun 22, 2023
Updated
Dec 10, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-120, T1499.004
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 22, 2023CVE publishedPublication date reported by the CVE source.
  2. Dec 10, 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?

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

7.7CISA-ADPCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
7.7NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/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 exploitUnconfirmed

Weakness, pattern, technique

CWE-120Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
T1499.004Application or System Exploitation

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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