TI-2024-15911 Aliases CVE-2024-23923 GHSA-4grv-37wf-jg36

Use after free in Alpine Halo9

MEDIUM 41CWE-416Published 2024-09-28 · Updated 2024-10-03

Key facts

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

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-416 and the CVSS impact.

Summary

Alpine Halo9 prh_l2_sar_data_ind Use-After-Free Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of Alpine Halo9 devices. Authentication is not required to exploit this vulnerability. The specific flaw exists within the prh_l2_sar_data_ind function. The issue results from the lack of validating the existence of an object prior to performing operations on the object. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-22945

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00789 56th 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

Vendor	Product	Affected versions	Fixed in	Status	Source
Alpine	Halo9	6.0.000	—	No fix listed	CNA

Halo9 VendorAlpine Affected 6.0.000 Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPE	Versions	Role	Vendor
cpe:2.3:o:alpsalpine:ilx-f509_firmware:6.0.000:::::::*	6.0.000	Vulnerable	Alpine
cpe:2.3:h:alpsalpine:ilx-f509:-:::::::*	not specified by NVD	Running on	Alpine

cpe:2.3:o:alpsalpine:ilx-f509_firmware:6.0.000:*:*:*:*:*:*:* Versions 6.0.000 Vulnerable ·Alpine
cpe:2.3:h:alpsalpine:ilx-f509:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Alpine

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2024-23923
2026-10-03 Alias added: GHSA-4grv-37wf-jg36

References

Advisory 1

ZDI-24-844

TI-2024-15941 Alpine Halo9 Stack-based Buffer Overflow CVSS 3.1HIGH 8.0
TI-2024-15918 Stack-based buffer overflow in Alpine Halo9 CVSS 3.1HIGH 8.0
TI-2024-15939 OS command injection in Alpine Halo9 CVSS 3.1MEDIUM 6.8
TI-2024-15912 OS command injection in Alpine Halo9 CVSS 3.1MEDIUM 6.8
TI-2024-15940 Alpine Halo9 Missing Authentication CVSS 3.1MEDIUM 5.3
TI-2024-15938 Improper signature verification in Alpine Halo9 CVSS 3.1MEDIUM 4.6

Sources

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