CVE-2023-46550Network attack vector

Remote memory corruption via formMapDelDevice overflow

Published Oct 25, 2023 · Updated Sep 11, 2024

Stack overflow in formMapDelDevice in TOTOLINK X2000R firmware 1.0.0-B20230221.0948 allows remote attackers to corrupt memory. The handler writes beyond a stack buffer while processing a network request, but the surviving public record does not identify the input parameter or copy operation. Unauthenticated network access reaches the flaw; public evidence does not establish whether exploitation is limited to a crash or permits code execution.

CVSS severity9.8
Critical
EPSS probability0.83%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Stack overflow in formMapDelDevice in TOTOLINK X2000R firmware 1.0.0-B20230221.0948 allows remote attackers to corrupt memory. The handler writes beyond a stack buffer while processing a network request, but the surviving public record does not identify the input parameter or copy operation. Unauthenticated network access reaches the flaw; public evidence does not establish whether exploitation is limited to a crash or permits code execution.

The record

CVE
CVE-2023-46550
Published
Oct 25, 2023
Updated
Sep 11, 2024
Vendor
TOTOLINK
Product
TOTOLINK X2000R Firmware
Classifications
CWE-787, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 25, 2023CVE publishedPublication date reported by the CVE source.
  2. Sep 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=1.0.0-b20230221.0948

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

TOTOLINK · TOTOLINK X2000R Firmwareversion=1.0.0-b20230221.0948

Published CVSS scores

9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-787Out-of-bounds Write
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

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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