CVE-2026-42801
Deference after null check in as_rrc
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.
INFO
Published Date :
Sept. 23, 2026, 9:17 a.m.
Last Modified :
Sept. 23, 2026, 5:58 p.m.
Remotely Exploit :
Yes !
Source :
68630edc-a58c-4cbd-9b01-0e130455c8ae
Affected Products
The following products are affected by CVE-2026-42801
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 3.1 | HIGH | 68630edc-a58c-4cbd-9b01-0e130455c8ae |
Solution
- Validate pointers before dereferencing in urrsir.c.
- Apply vendor patches for the ASR Crane.
- Update the as_rrc module to the latest version.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-42801.
| URL | Resource |
|---|---|
| https://www.asrmicro.com/en/goods/psirt?cid=45 |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-42801 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-42801
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-42801 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-42801 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Sep. 23, 2026
Action Type Old Value New Value Added SSVC {'id': 'CVE-2026-42801', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'no'}, {'technicalImpact': 'partial'}], 'version': '2.0.3', 'timestamp': '2026-09-23T15:25:08.195447Z'} -
New CVE Received by 68630edc-a58c-4cbd-9b01-0e130455c8ae
Sep. 23, 2026
Action Type Old Value New Value Added 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. Added CVSS V3.1 AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L Added CWE CWE-476 Added Affected New affected value received. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2026/42xxx/CVE-2026-42801.json">CVE-2026-42801</a> Added Reference https://www.asrmicro.com/en/goods/psirt?cid=45