CVE-2021-30810

Forced Wi-Fi joining via flawed authorization state

Published Oct 19, 2021 · Updated Aug 3, 2024

Authorization bypass in Apple iOS, iPadOS, tvOS before 15, and watchOS before 8 allows physically proximate attackers to force a malicious Wi-Fi join. The Wi-Fi setup authorization logic incorrectly tracks state, but Apple has not disclosed the affected routine or exact invalid transition. Exploitation requires close physical proximity during device setup and changes the network association without a reported confidentiality or availability impact.

CVSS severity4.3
Medium
EPSS probability0.53%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Authorization bypass in Apple iOS, iPadOS, tvOS before 15, and watchOS before 8 allows physically proximate attackers to force a malicious Wi-Fi join. The Wi-Fi setup authorization logic incorrectly tracks state, but Apple has not disclosed the affected routine or exact invalid transition. Exploitation requires close physical proximity during device setup and changes the network association without a reported confidentiality or availability impact.

The record

CVE
CVE-2021-30810
Published
Oct 19, 2021
Updated
Aug 3, 2024
Vendor
Apple
Product
iOS and iPadOS
Classifications
CWE-862, T1557
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 19, 2021CVE 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?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=unspecified <15

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

Apple · iOS and iPadOSversion=unspecified <15
Apple · tvOSversion=unspecified <15
Apple · watchOSversion=unspecified <8

Published CVSS scores

2.9NIST NVDAV:A/AC:M/Au:N/C:N/I:P/A:N
4.3NIST NVDCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

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)
Vectoradjacent
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-862Missing Authorization
T1557Adversary-in-the-Middle

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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