CVE-2022-35886Public exploitNetwork attack vector

Memory corruption via untrusted log format

Published Oct 25, 2022 · Updated Apr 15, 2025

Format string injection in Abode Systems iota 6.9X and 6.9Z allows remote authenticated users to corrupt memory via crafted HTTP requests. The web_wireless_connect handler builds cmd_buffer from the default_key_id and key parameters, then passes that buffer as the log format to vsnprintf. Exploitation requires the disabled-by-default web interface, valid administrator access, and WEP or SHARED mode; diagnostic output is visible only over the physical UART, while memory writes can interrupt service.

CVSS severity8.2
High
EPSS probability1.30%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Format string injection in Abode Systems iota 6.9X and 6.9Z allows remote authenticated users to corrupt memory via crafted HTTP requests. The web_wireless_connect handler builds cmd_buffer from the default_key_id and key parameters, then passes that buffer as the log format to vsnprintf. Exploitation requires the disabled-by-default web interface, valid administrator access, and WEP or SHARED mode; diagnostic output is visible only over the physical UART, while memory writes can interrupt service.

The record

CVE
CVE-2022-35886
Published
Oct 25, 2022
Updated
Apr 15, 2025
Vendor
Abode Systems, Inc.
Product
iota All-In-One Security Kit
Classifications
CWE-134, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Oct 25, 2022CVE publishedPublication date reported by the CVE source.
  2. Apr 15, 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?

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

  1. Affected versionversion=6.9X
  2. Affected versionversion=6.9Z

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Abode Systems, Inc. · iota All-In-One Security Kitversion=6.9X; version=6.9Z

Published CVSS scores

8.2Cisco TalosCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-134Use of Externally-Controlled Format String
T1190Exploit Public-Facing Application

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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