What is CVE-2026-42801?

CVE-2026-42801 is a high-severity vulnerability, classified under NULL Pointer Dereference. CVSS score: 7.4/10. Published 2026-09-23.

How severe is CVE-2026-42801?

High severity. CVSS v3 base score is 7.4 out of 10.

CVE-2026-42801

CVE-2026-42801

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.

Published 2026-09-23 · last modified 2026-09-23.

CVSS v3 metric

CVSS v3 base score 7.4 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L.

EPSS exploit prediction

EPSS: 0.003 (21.1th percentile), scored 2026-09-24.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 21st percentile — 21.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

The 30-day trend appears once there are two daily scores.

Weakness classification (CWE)

CWE-476 — NULL Pointer Dereference

References

68630edc-a58c-4cbd-9b01-0e130455c8ae

Frequently asked questions

What is CVE-2026-42801?: CVE-2026-42801 is a high-severity vulnerability, classified under NULL Pointer Dereference. CVSS score: 7.4/10. Published 2026-09-23.
How severe is CVE-2026-42801?: High severity. CVSS v3 base score is 7.4 out of 10.