CVE-2025-1049
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedSonos Era 300 Heap-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected Sonos Era 300 speakers. Authentication is not required to exploit this vulnerability. The specific flaw exists within the processing of ID3 data. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of the anacapa user. Was ZDI-CAN-25601.
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · high confidenceA heap-based buffer overflow vulnerability exists in Sonos Era 300 speakers due to improper length validation when processing ID3 data. Network-adjacent attackers can exploit this flaw without authentication to execute arbitrary code in the context of the 'anacapa' user.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.
NVD · CPE data< 57.22-61162< 83.1-61240CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Adjacent
- Complexity
- Low
- Privileges
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
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Identify Sonos Era 300 speakers on your networkCheck your Sonos device inventory or physically inspect devices to confirm Era 300 models are present on your networkAffected if You have one or more Era 300 speakers deployed
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Check the installed firmware version on each Era 300Open the Sonos app, go to Settings > System > About My System, or use the Sonos S1/S2 controller software to view firmware version information for each Era 300Affected if The firmware version displayed cannot be determined or is below the thresholds in the next step
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If using S1 software, note the full version string (for example 57.22-xxxxx) and check if it is less than 57.22-61162Affected if The installed S1 version is less than 57.22-61162
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If using S2 software, note the full version string (for example 83.1-xxxxx) and check if it is less than 83.1-61240Affected if The installed S2 version is less than 83.1-61240
You are affected if you have any Era 300 speakers running Sonos S1 firmware below 57.22-61162 or Sonos S2 firmware below 83.1-61240
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
dbcve · scoped57.22-6116283.1-61240
Apply the vendor-supplied firmware update for Sonos Era 300 when available. As an interim measure, restrict network access to speaker management interfaces and consider network segmentation to limit exposure to adjacent attackers.
S1: >= 57.22-61162 | S2: >= 83.1-61240
- Identify your Sonos Era 300 firmware version (S1 or S2 stream) in the Sonos app under Settings > System > About my system
- For S1 devices: Upgrade firmware to version 57.22-61162 or higher
- For S2 devices: Upgrade firmware to version 83.1-61240 or higher
- Verify the update was applied by checking the firmware version again after rebooting
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation6.0 h
- Implementation4.0 h
- Testing8.0 h
- Review / QA4.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2025-1049 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2025-1049 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
- No weaponised exploit code, or anything meant to cause harm
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