Is CVE-2023-51596 in the CISA KEV catalog?

No. CVE-2023-51596 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2023-51596?

CVE-2023-51596 has a CVSS v3 base score of 7.1 (HIGH).

What is the EPSS score for CVE-2023-51596?

CVE-2023-51596 has an EPSS score of 1.49% (71th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2023-51596?

Upgrade bluez on rhel 9 to 0:5.72-2.el9 or later. Fixes are available for 26 affected products.

CVE & CISA-KEV Catalog

CVE-2023-51596

HIGHEPSS 71th pctl

7.1

CVSS v3

NVD

Description

BlueZ Phone Book Access Profile Heap-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of BlueZ. User interaction is required to exploit this vulnerability in that the target must connect to a malicious Bluetooth device. The specific flaw exists within the handling of the Phone Book Access profile. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-20939.

CWE-122Heap-based Buffer Overflow

How to fix

Remediation Available

bluezRed Hat / RHEL

Fixed in:0:5.72-2.el9RHSA-2024:9413

bluezRocky

Fixed in:0:5.72-2.el9RHSA-2024:9413

bluez-cupsRed Hat / RHEL

Fixed in:0:5.72-2.el9RHSA-2024:9413

bluez-cupsRocky

Fixed in:0:5.72-2.el9RHSA-2024:9413

bluez-cups-debuginfoRocky

Fixed in:0:5.72-2.el9RHSA-2024:9413

bluez-cups-debuginfoRed Hat / RHEL

Fixed in:0:5.72-2.el9RHSA-2024:9413

bluez-debuginfoRocky

Fixed in:0:5.72-2.el9RHSA-2024:9413

bluez-debuginfoRed Hat / RHEL

Fixed in:0:5.72-2.el9RHSA-2024:9413

bluez-debugsourceRed Hat / RHEL

Fixed in:0:5.72-2.el9RHSA-2024:9413

bluez-debugsourceRocky

Fixed in:0:5.72-2.el9RHSA-2024:9413

bluez-hid2hci-debuginfoRed Hat / RHEL

Fixed in:0:5.72-2.el9RHSA-2024:9413

bluez-hid2hci-debuginfoRocky

Fixed in:0:5.72-2.el9RHSA-2024:9413

bluez-libsRocky

Fixed in:0:5.72-2.el9RHSA-2024:9413

bluez-libsRed Hat / RHEL

Fixed in:0:5.72-2.el9RHSA-2024:9413

bluez-libs-debuginfoRed Hat / RHEL

Fixed in:0:5.72-2.el9RHSA-2024:9413

bluez-libs-debuginfoRocky

Fixed in:0:5.72-2.el9RHSA-2024:9413

bluez-libs-develRocky

Fixed in:0:5.72-2.el9RHSA-2024:9413

bluez-libs-develRed Hat / RHEL

Fixed in:0:5.72-2.el9RHSA-2024:9413

bluez-libs-devel-debuginfoRocky

Fixed in:0:5.72-2.el9RHSA-2024:9413

bluez-libs-devel-debuginfoRed Hat / RHEL

Fixed in:0:5.72-2.el9RHSA-2024:9413

bluez-mesh-debuginfoRocky

Fixed in:0:5.72-2.el9RHSA-2024:9413

bluez-mesh-debuginfoRed Hat / RHEL

Fixed in:0:5.72-2.el9RHSA-2024:9413

bluez-obexdRocky

Fixed in:0:5.72-2.el9RHSA-2024:9413

bluez-obexdRed Hat / RHEL

Fixed in:0:5.72-2.el9RHSA-2024:9413

bluez-obexd-debuginfoRed Hat / RHEL

Fixed in:0:5.72-2.el9RHSA-2024:9413

bluez-obexd-debuginfoRocky

Fixed in:0:5.72-2.el9RHSA-2024:9413

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorAdjacent

Attack ComplexityHigh

Privileges RequiredNone

User InteractionRequired

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

1.49%probability of exploitation in 30 days

71stpercentile

Elevated risk: more likely to be exploited than 71% of all known CVEs.

References

Third-Party Advisory1

zerodayinitiative.com

Related Vulnerabilities

Other CWE-122 (Heap-based Buffer Overflow) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2015-3113	Critical	9.8	100%	KEV	Fix
CVE-2024-26256	High	7.8	88%	-	Fix
CVE-2020-25687	Medium	5.9	87%	-	Fix
CVE-2009-3459	High	8.8	86%	KEV	Fix
CVE-2021-21017	High	8.8	86%	KEV	-
CVE-2020-25683	Medium	5.9	86%	-	Fix

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2025-07-08.