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CVE-2025-5477

19
FAUCET Score

CVE-2025-5477 is a heap-based buffer overflow vulnerability in the Bluetooth L2CAP protocol of the Sony XAV-AX8500, allowing network-adjacent attackers to execute arbitrary code. With a CVSS score of 7.5 (HIGH), exploitation requires an attacker to first pair a malicious Bluetooth device, indicating high attack complexity. While the potential impact includes full compromise of confidentiality, integrity, and availability, there is currently no evidence of active exploitation, public exploit code, or significant community discussion.

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

7.5HIGH

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

Attack Vector
ADJACENT_NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.6
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
0.33%
Probability of exploitation in next 30 days
EPSS Percentile
25.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0032 is in the 33rd percentile among its peer group of 239 CVEs.

Social Chatter

No social media mentions found for this CVE.

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.1 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-25-354
Third Party Advisory