Use After Free in Alpsalpine Ilx-F509

CVE-2024-23923

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

Vulnerability class: Use-After-Free

EPSS: 0.008 (52.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

References

  • cve@asrg.io (x_research-advisory, VDB Entry, Third Party Advisory)

Frequently asked questions

What is CVE-2024-23923?
CVE-2024-23923 is a high-severity vulnerability in Alpsalpine Ilx-F509, classified under Use After Free. CVSS score: 8.8/10. Published 2024-09-28.
How severe is CVE-2024-23923?
High severity. CVSS v3 base score is 8.8 out of 10.