CVE-2024-22733Public exploitNetwork attack vector

Unauthenticated router crash via malformed login parameters

Published Nov 1, 2024 · Updated Nov 5, 2024

Null-pointer dereference in TP-Link Archer MR200 Firmware 210201 allows remote attackers to crash the router through /cgi/login requests. The web administration panel dereferences a null pointer while processing crafted sign, Action, or LoginStatus query parameters. The endpoint requires no authentication; LAN clients can reach management by default, while internet reachability requires remote management to be enabled.

CVSS severity7.5
High
EPSS probability0.61%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Null-pointer dereference in TP-Link Archer MR200 Firmware 210201 allows remote attackers to crash the router through /cgi/login requests. The web administration panel dereferences a null pointer while processing crafted sign, Action, or LoginStatus query parameters. The endpoint requires no authentication; LAN clients can reach management by default, while internet reachability requires remote management to be enabled.

The record

CVE
CVE-2024-22733
Published
Nov 1, 2024
Updated
Nov 5, 2024
Vendor
TP-Link
Product
Archer MR200 Firmware
Classifications
CWE-476, T1499.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Nov 1, 2024CVE publishedPublication date reported by the CVE source.
  2. Nov 5, 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=210201

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

TP-Link · Archer MR200 Firmwareversion=210201

Published CVSS scores

3.5CISA-ADPCVSS:3.1/AV:A/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/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.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-476NULL Pointer Dereference
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

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Your stack

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