CVE-2022-46910Public exploitNetwork attack vector

Code execution via unsigned firmware update

Published Dec 20, 2022 · Updated Apr 16, 2025

Firmware verification bypass in TP-Link TL-WA901ND V1 3.11.2 and earlier and TL-WA901N V2 3.12.16 and earlier allows attackers to execute code. The updater accepts firmware protected only by replaceable MD5 header checksums and performs no signature verification, so modified kernel bytes pass integrity checks. Man-in-the-middle attackers must intercept a user-initiated HTTP firmware upload; flashing the image plants persistent code or renders the access point inoperable.

CVSS severity8.8
High
EPSS probability0.97%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Firmware verification bypass in TP-Link TL-WA901ND V1 3.11.2 and earlier and TL-WA901N V2 3.12.16 and earlier allows attackers to execute code. The updater accepts firmware protected only by replaceable MD5 header checksums and performs no signature verification, so modified kernel bytes pass integrity checks. Man-in-the-middle attackers must intercept a user-initiated HTTP firmware upload; flashing the image plants persistent code or renders the access point inoperable.

The record

CVE
CVE-2022-46910
Published
Dec 20, 2022
Updated
Apr 16, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
T1601.001
Attack vector
network
Privileges
unauthenticated

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

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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

8.8CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
8.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/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 exploitPublished

Weakness, pattern, technique

T1601.001Modify System Image

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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