TI-2024-32661 Aliases CVE-2024-48986 GHSA-ghhj-rq38-j6jp

An issue was discovered in MBed OS 6.16.0.

LOW 39CWE-120Published 2024-11-20 · Updated 2024-11-26

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: Low
Impact type: Denial of service
Confidentiality · integrity · availability: None · None · High
Fix status: No fix listed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-120 and the CVSS impact.

Summary

An issue was discovered in MBed OS 6.16.0. Its hci parsing software dynamically determines the length of certain hci packets by reading a byte from its header. Certain events cause a callback, the logic for which allocates a buffer (the length of which is determined by looking up the event type in a table). The subsequent write operation, however, copies the amount of data specified in the packet header, which may lead to a buffer overflow. This bug is trivial to exploit for a denial of service but is not certain to suffice to bring the system down and can generally not be exploited further because the exploitable buffer is dynamically allocated.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00483 41st 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: Yes
Technical impact: Partial

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

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
—	—	all versions	—	No fix listed	CNA

— Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:o:arm:mbed:6.16.0:::::::*	6.16.0	Vulnerable	Arm

cpe:2.3:o:arm:mbed:6.16.0:*:*:*:*:*:*:* Versions 6.16.0 Vulnerable ·Arm

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2024-48986
2026-10-03 Alias added: GHSA-ghhj-rq38-j6jp

References

Patch 1

https://github.com/mbed-ce/mbed-os/pull/385

Other 1

https://github.com/mbed-ce/mbed-os/blob/54e8693ef4ff7e025018094f290a1d5cf380941f/connectivity/FEATURE_BLE/libraries/cordio_stack/ble-host/sources/hci/dual_chip/hci_evt.c#L3018

TI-2021-08924 ARM mbed Integer Overflow or Wraparound CVSS 3.1CRITICAL 9.8
TI-2024-32660 An issue was discovered in MBed OS 6.16.0. CVSS 3.1HIGH 7.5
TI-2024-32658 An issue was discovered in MBed OS 6.16.0. CVSS 3.1HIGH 7.5
TI-2024-32657 An issue was discovered in MBed OS 6.16.0. CVSS 3.1HIGH 7.5
TI-2024-32656 An issue was discovered in MBed OS 6.16.0. CVSS 3.1HIGH 7.5

Sources

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