CVE-2022-46585Network attack vector

Device takeover via REMOTE_USER stack overflow

Published Dec 30, 2022 · Updated Apr 11, 2025

Stack overflow in TRENDnet TEW-755AP 1.13B01 firmware allows remote attackers to take over the device via a crafted REMOTE_USER value. The get_access function (sub_45AC2C) processes the REMOTE_USER parameter without enforcing the destination stack buffer's bounds, allowing adjacent memory to be overwritten. No authentication or user interaction is required, and successful exploitation grants access to the device operating system.

CVSS severity9.8
Critical
EPSS probability0.87%
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 TRENDnet TEW-755AP 1.13B01 firmware allows remote attackers to take over the device via a crafted REMOTE_USER value. The get_access function (sub_45AC2C) processes the REMOTE_USER parameter without enforcing the destination stack buffer's bounds, allowing adjacent memory to be overwritten. No authentication or user interaction is required, and successful exploitation grants access to the device operating system.

The record

CVE
CVE-2022-46585
Published
Dec 30, 2022
Updated
Apr 11, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-787, T1210
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 30, 2022CVE publishedPublication date reported by the CVE source.
  2. Apr 11, 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 privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

9.8CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.8NVDCVSS: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.

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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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-787Out-of-bounds Write
T1210Exploitation of Remote Services

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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