CVE-2022-24046

Root code execution via anacapd integer underflow

Published Feb 18, 2022 · Updated Aug 3, 2024

Integer underflow in Sonos One before S2 13.4.1 or S1 11.2.13 build 57923290 allows network-adjacent attackers to execute code. The anacapd daemon insufficiently validates user-supplied data, causing an integer underflow before a memory write. No authentication or user interaction is required; an attacker on an adjacent network can execute code as root, gaining full control of the speaker.

CVSS severity8.8
High
EPSS probability4.08%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Integer underflow in Sonos One before S2 13.4.1 or S1 11.2.13 build 57923290 allows network-adjacent attackers to execute code. The anacapd daemon insufficiently validates user-supplied data, causing an integer underflow before a memory write. No authentication or user interaction is required; an attacker on an adjacent network can execute code as root, gaining full control of the speaker.

The record

CVE
CVE-2022-24046
Published
Feb 18, 2022
Updated
Aug 3, 2024
Vendor
Sonos
Product
Sonos One
Classifications
CWE-191, T1210
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 18, 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?

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

  1. Affected versionversion=prior to 3.4.1 (S2 systems) and 11.2.13 build 57923290 (S1 systems)

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

Sonos · Sonos Oneversion=prior to 3.4.1 (S2 systems) and 11.2.13 build 57923290 (S1 systems)

Published CVSS scores

8.8NIST NVDCVSS:3.1/AV:A/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)
Vectoradjacent
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-191Integer Underflow (Wrap or Wraparound)
T1210Exploitation of Remote Services

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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