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CVE-2025-5478

23
FAUCET Score

CVE-2025-5478 is a critical remote code execution vulnerability affecting Sony XAV-AX8500 devices, stemming from an integer overflow within the Bluetooth SDP protocol. This flaw allows unauthenticated, network-adjacent attackers to execute arbitrary code with root privileges due to insufficient validation of user-supplied data. Rated with a CVSS score of 8.8 (HIGH), the vulnerability is easily exploitable with low attack complexity and no user interaction required, leading to high impacts on confidentiality, integrity, and availability. Currently, there is no known active exploitation, public exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
>= 2.00.01, < 3.02.00CPE matchmatch criteria
cpe:2.3:o:sony:xav-ax8500_firmware:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

8.8HIGH

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

Attack Vector
ADJACENT_NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
0.38%
Probability of exploitation in next 30 days
EPSS Percentile
30.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0038 is in the 27th percentile among its peer group of 1,875 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.2 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Remediation records are not available for this CVE.

References

sony.com / electronics/support/mobile-cd-players-digital-media-players-xav-series/xav-ax8500/software/00344092
Patch
zerodayinitiative.com / advisories/ZDI-25-355
Third Party Advisory