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CVE-2023-27353

22
FAUCET Score

CVE-2023-27353 is a sensitive information disclosure vulnerability affecting Sonos One speakers running firmware version 70.3-35220. It stems from improper data validation in the msprox endpoint, leading to a read past the end of an allocated buffer. This medium-severity vulnerability (CVSS 6.5) can be exploited by network-adjacent attackers without authentication, potentially allowing arbitrary code execution when chained with other flaws. Currently, there is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
70.3-35220CPE matchmatch criteria
cpe:2.3:o:sonos:one_firmware:70.3-35220:*:*:*:*:*:*:*
< 11.7.1CPE matchmatch criteria
cpe:2.3:a:sonos:s1:*:*:*:*:*:*:*:*
< 15.1CPE matchmatch criteria
cpe:2.3:a:sonos:s2:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

5.4MEDIUM

CVSS:3.0/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L

Attack Vector
ADJACENT_NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
NONE
Availability Impact
LOW
Exploitability Score
2.8
Impact Score
2.5
CvssVersion
3.0

Exploit Intelligence

EPSS Score
0.63%
Probability of exploitation in next 30 days
EPSS Percentile
46.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.0063 is in the 73rd percentile among its peer group of 1,802 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

zerodayinitiative.com / advisories/ZDI-23-448
Third Party AdvisoryVDB Entry