CVE-2026-42801— Deference after null check in as_rrc
Quick assessment
Affected
ASR Crane，Falcon
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
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.
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I. Basic Information for CVE-2026-42801
Vulnerability Information
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Vulnerability Title
Deference after null check in as_rrc
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
空指针解引用
Source: CVE Program / CVE List V5
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| ASR | Crane，Falcon | - | - |
|
II. Public POCs for CVE-2026-42801
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Advisories for CVE-2026-42801 (1)
IV. Related Vulnerabilities
Same weakness: CWE-476
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V. Comments for CVE-2026-42801
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