High [CVE-2026-42801] ASR Crane, Falcon: NULL pointer dereference allows pointer manipulation
This high-severity Red Hat Linux advisory covers CVE-2026-42801 affecting Red Hat OpenStack Platform 16.2.
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Summary
NULL pointer dereference vulnerability in ASR Crane，Falcon on Linux (as_rrc module) allows Pointer Manipulation. This vulnerability is associated with program file 3g.mod/lib/src/urrsir.c.
An attacker could potentially exploit this to manipulate pointers, which may lead to unpredictable system behavior or a denial of service. This vulnerability is rated as Important because improper pointer handling in cellular communication stacks can allow network-adjacent or protocol-level manipulation that compromises service availability.
Exploitation requires specialized hardware running proprietary ASR Microelectronics cellular baseband software, which is not shipped or supported in standard Red Hat enterprise environments. Additionally, this flaw is confined to ASR modem chipsets and does not affect the unrelated python-falcon web framework packages.
Red Hat severity: Important — CVSS 7.4 (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L). Weakness: CWE-476.
Affected Red Hat products: Red Hat OpenStack Platform 16.2. Red Hat does not currently list a fixing RHSA for this CVE.
Affected versions
No affected-version range was extracted from the source record. The vendor advisory is authoritative — check it before change work.
Official advisory · high-confidence parse· fetched 2 hours ago·verify at source
Fixed versions
No fixed release is recorded yet. That does not prove no patch exists — confirm against the vendor advisory.
Official advisory · high-confidence parse· fetched 2 hours ago·verify at source
Mitigation checklist
- Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
Official advisory · high-confidence parse· fetched 2 hours ago·verify at source
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