CVE-2026-42801 ASR Crane Falcon - Denial of Service

ASR Crane Falcon on Linux contains a null pointer dereference vulnerability caused by improper pointer manipulation in as_rrc module (3g.mod/lib/src/urrsir.c), letting attackers cause denial of service, exploit requires crafted input.

CVSS base score 7.4 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Required
EPSS
0.21% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Denial of Service
Impact
Denial Of Service
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L
Published
23 September 2026
Updated
15 October 2026
Weakness
CWE-476

Vendor fix

Update to the latest version with the vulnerability fixed.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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