CVE-2022-46430Network attack vector

Authenticated code execution via unverified firmware upload

Published Dec 20, 2022 · Updated Apr 16, 2025

Improper firmware validation in TP-Link TL-WR740N V1 and V2 3.12.4 and earlier allows remote authenticated users to execute code. The firmware update process accepts and installs a crafted firmware image without adequately verifying its integrity. A reachable management interface and valid administrator credentials are required; exploitation executes attacker-supplied code or interrupts router operation.

CVSS severity4.8
Medium
EPSS probability0.34%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper firmware validation in TP-Link TL-WR740N V1 and V2 3.12.4 and earlier allows remote authenticated users to execute code. The firmware update process accepts and installs a crafted firmware image without adequately verifying its integrity. A reachable management interface and valid administrator credentials are required; exploitation executes attacker-supplied code or interrupts router operation.

The record

CVE
CVE-2022-46430
Published
Dec 20, 2022
Updated
Apr 16, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-494
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Dec 20, 2022CVE publishedPublication date reported by the CVE source.
  2. Apr 16, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

4.8NIST NVDCVSS:3.1/AV:N/AC:H/PR:L/UI:R/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
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-494Download of Code Without Integrity Check

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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