CVE-2022-30473Public exploitNetwork attack vector

Unauthenticated service interruption via unchecked SSID copy

Published May 26, 2022 · Updated Aug 3, 2024

Stack overflow in Tenda AC18 firmware 15.03.05.19(6318) allows remote attackers to interrupt service via a crafted SSID. The form_fast_setting_wifi_set handler passes the user-supplied ssid parameter to strcpy without checking its length, overflowing the fixed stack buffer s. The vulnerable HTTP endpoint accepts an unauthenticated network request, and the documented consequence is service interruption rather than data disclosure or modification.

CVSS severity7.5
High
EPSS probability1.17%
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 Tenda AC18 firmware 15.03.05.19(6318) allows remote attackers to interrupt service via a crafted SSID. The form_fast_setting_wifi_set handler passes the user-supplied ssid parameter to strcpy without checking its length, overflowing the fixed stack buffer s. The vulnerable HTTP endpoint accepts an unauthenticated network request, and the documented consequence is service interruption rather than data disclosure or modification.

The record

CVE
CVE-2022-30473
Published
May 26, 2022
Updated
Aug 3, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-787, T1499
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 26, 2022CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 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?

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

7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
5.0NIST NVDAV:N/AC:L/Au:N/C:N/I:N/A:P

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

CWE-787Out-of-bounds Write
T1499Endpoint Denial of Service

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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