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TI-2026-16039 Aliases CVE-2026-19774GHSA-53cx-rp5p-x795

Stack-based buffer overflow in BlueZ

Priority LOW 33CWE-121Published · Updated

Key facts

Attack vector
Adjacent network
Privileges required
None
User interaction
Required
Attack complexity
High
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.0 · CNA. Fix status from CNA and Red Hat. Impact type from CWE-121 and the CVSS impact.

Summary

BlueZ A2DP Stack-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of BlueZ. An attacker must first obtain the ability to pair a malicious Bluetooth device with the target system in order to exploit this vulnerability. The specific flaw exists within the handling of the stream endpoints. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length stack-based buffer. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-29429.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00266 18th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
BlueZBlueZb138a0849ba26310c3f40e78037565ce274d8737—No fix listedCNA
  • BlueZ VendorBlueZ Affected b138a0849ba26310c3f40e78037565ce274d8737 Fixed in — No fix listed CNA

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPEVersionsRoleVendor
cpe:2.3:a:bluez:bluez:*:*:*:*:*:*:*:*——BlueZ
  • cpe:2.3:a:bluez:bluez:*:*:*:*:*:*:*:* Versions — — ·BlueZ

Remediation

No fixed version listed by the sources yet.

Vendor assessments

Red Hat

Red Hat rating: Important. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux 10AffectedNo fix yet
Red Hat Enterprise Linux 6AffectedNo fix planned: Out of support scope
Red Hat Enterprise Linux 7AffectedNo fix yet
Red Hat Enterprise Linux 8AffectedNo fix yet
Red Hat Enterprise Linux 9AffectedNo fix yet

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-19774
  2. 2026-10-03 Alias added: GHSA-53cx-rp5p-x795

References

Advisory 1

Other 1

  • TI-2008-02277 src/sdp.c in bluez-libs 3.30 in BlueZ, and other bluez-libs before 3.34 and bluez-utils… CVSS 3.1CRITICAL 9.8
  • TI-2020-16504 In BlueZ before 5.55, a double free was found in the gatttool disconnect_cb() routine… CVSS 3.1HIGH 8.6
  • TI-2024-08171 Improper access control in BlueZ CVSS 3.1HIGH 8.8
  • TI-2022-00141 Memory corruption in bluez CVSS 3.1HIGH 8.8
  • TI-2021-19345 An issue was discovered in gatt-database.c in BlueZ 5.61. CVSS 3.1CRITICAL 9.1
  • TI-2019-06435 A heap-based buffer overflow was discovered in bluetoothd in BlueZ through 5.48. CVSS 3.1HIGH 8.8
See all 38 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences