CVE-2024-23923
CVE-2024-23923 is a high-severity vulnerability in Alpsalpine Ilx-f509 Firmware with a CVSS 3.x base score of 8.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-416.
Key facts
- Severity: High (CVSS 3.x base score 8.8)
- EPSS exploit prediction: 1% (52nd percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2024-21353
- Weakness: CWE-416
- Affected product: Alpsalpine Ilx-f509 Firmware
- Published:
- Last modified:
Description
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
Frequently asked questions
- What is 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
- How severe is CVE-2024-23923?
- CVE-2024-23923 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
- Is CVE-2024-23923 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (52nd percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2024-23923?
- CVE-2024-23923 affects Alpsalpine Ilx-f509 Firmware. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2024-23923?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- Does CVE-2024-23923 have an EU (EUVD) identifier?
- Yes. CVE-2024-23923 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-21353.
- When was CVE-2024-23923 published?
- CVE-2024-23923 was published on 2024-09-28 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:o:alpsalpine:ilx-f509_firmware:6.0.000:*:*:*:*:*:*:*
More vulnerabilities in Alpsalpine Ilx-f509 Firmware
- CVE-2024-23963 — High (CVSS 8.0): This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of Alpine…
- CVE-2024-23935 — High (CVSS 8.0): Alpine Halo9 DecodeUTF7 Stack-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows…
- CVE-2024-23961 — Medium (CVSS 6.8): Alpine Halo9 UPDM_wemCmdUpdFSpeDecomp Command Injection Remote Code Execution Vulnerability. This vulnerability allows…
- CVE-2024-23924 — Medium (CVSS 6.8): Alpine Halo9 UPDM_wemCmdCreatSHA256Hash Command Injection Remote Code Execution Vulnerability. This vulnerability…
- CVE-2024-23962 — Medium (CVSS 5.3): This vulnerability allows remote attackers to disclose sensitive information on affected installations of Alpine Halo9…
- CVE-2024-23960 — Medium (CVSS 4.6): Alpine Halo9 Improper Verification of Cryptographic Signature Vulnerability. This vulnerability allows physically…
All CVEs affecting Alpsalpine Ilx-f509 Firmware →
Other CWE-416 (Use After Free) vulnerabilities
- CVE-2026-13782 — Critical (CVSS 10.0): Use after free in Browser in Google Chrome prior to 150.0.7871.47 allowed a remote attacker who had compromised the…
- CVE-2026-4725 — Critical (CVSS 10.0): Sandbox escape due to use-after-free in the Graphics: Canvas2D component. This vulnerability was fixed in Firefox 149…
- CVE-2026-4688 — Critical (CVSS 10.0): Sandbox escape due to use-after-free in the Disability Access APIs component. This vulnerability was fixed in Firefox…
- CVE-2025-24085 — Critical (CVSS 10.0): A use after free issue was addressed with improved memory management. This issue is fixed in iOS 18.3 and iPadOS 18.3,…
- CVE-2024-43102 — Critical (CVSS 10.0): Concurrent removals of certain anonymous shared memory mappings by using the UMTX_SHM_DESTROY sub-request of…
- CVE-2021-32495 — Critical (CVSS 10.0): Radare2 has a use-after-free vulnerability in pyc parser's get_none_object function. Attacker can read freed memory…