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CVE-2023-51596

20
FAUCET Score

CVE-2023-51596 is a heap-based buffer overflow vulnerability in BlueZ's Phone Book Access Profile, allowing network-adjacent attackers to execute arbitrary code with root privileges. Exploitation requires user interaction, as the target must connect to a malicious Bluetooth device. Rated with a CVSS score of 7.1 (HIGH), this vulnerability has high impact on confidentiality, integrity, and availability, but high attack complexity. Currently, there is no public exploit code available, nor any evidence of active exploitation or significant community discussion.

Impacted Technologies

VendorProductVersion(s)CPE
5.66CPE matchmatch criteria
cpe:2.3:a:bluez:bluez:5.66:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.0

7.1HIGH

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

Attack Vector
ADJACENT_NETWORK
Attack Complexity
HIGH
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
1.2
Impact Score
5.9
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.49%
Probability of exploitation in next 30 days
EPSS Percentile
71.5%
Percentile rank of EPSS score among Peer Group
As of 2026-07-28
Model: v2026.06.15
This CVE's current EPSS score of 0.0149 is in the 96th percentile among its peer group of 29 CVEs.

Social Chatter

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

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.7 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

redhatpatch availablevia redhat_api
Product: Red Hat Enterprise Linux 9Fixed in: bluez-0:5.72-2.el9
View patch
redhatno patchvia redhat_api
Product: Red Hat Enterprise Linux 8Fixed in: bluez

Vendor Advisories (1)

redhatCVE-2023-51596Moderate

bluez: phone book access profile heap-based buffer overflow remote code execution vulnerability

May 3, 2024

References

zerodayinitiative.com / advisories/ZDI-23-1902
Third Party Advisory