CVE-2022-44175Network attack vector

Unauthenticated memory corruption via formSetMacFilterCfg

Published Nov 21, 2022 · Updated Apr 29, 2025

Buffer overflow in formSetMacFilterCfg in Tenda AC18 firmware 15.03.05.19 allows remote attackers to corrupt memory via network requests. Public records identify the handler but do not disclose the affected parameter, destination buffer, or unchecked copy operation that accepts untrusted input. No authentication or user interaction is required, but public sources do not document whether exploitation causes a crash, code execution, or another concrete outcome.

CVSS severity9.8
Critical
EPSS probability0.78%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Buffer overflow in formSetMacFilterCfg in Tenda AC18 firmware 15.03.05.19 allows remote attackers to corrupt memory via network requests. Public records identify the handler but do not disclose the affected parameter, destination buffer, or unchecked copy operation that accepts untrusted input. No authentication or user interaction is required, but public sources do not document whether exploitation causes a crash, code execution, or another concrete outcome.

The record

CVE
CVE-2022-44175
Published
Nov 21, 2022
Updated
Apr 29, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-120
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Nov 21, 2022CVE publishedPublication date reported by the CVE source.
  2. Apr 29, 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
9.8NIST 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-120Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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