ASR Crane/Falcon as_rrc module 3g.mod/lib/src/urrsir.c null pointer dereference

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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8.7$0-$5k0.68-

Summaryinfo

A vulnerability, which was classified as very critical, was found in ASR Crane and Falcon. This affects an unknown function of the file 3g.mod/lib/src/urrsir.c of the component as_rrc module. The manipulation results in null pointer dereference. This vulnerability is known as CVE-2026-42801. It is possible to launch the attack remotely. No exploit is available.

Detailsinfo

A vulnerability, which was classified as very critical, was found in ASR Crane and Falcon (affected version not known). Affected is some unknown functionality of the file 3g.mod/lib/src/urrsir.c of the component as_rrc module. The manipulation with an unknown input leads to a null pointer dereference vulnerability. CWE is classifying the issue as CWE-476. A NULL pointer dereference occurs when the application dereferences a pointer that it expects to be valid, but is NULL, typically causing a crash or exit. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

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.

The advisory is shared for download at asrmicro.com. This vulnerability is traded as CVE-2026-42801 since 04/30/2026. The exploitability is told to be easy. It is possible to launch the attack remotely. There are known technical details, but no exploit is available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 09/23/2026).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Vendor

Name

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 8.7
VulDB Meta Temp Score: 8.7

VulDB Base Score: 9.9
VulDB Temp Score: 9.9
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 7.4
CNA Vector (ASR): 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Null pointer dereference
CWE: CWE-476 / CWE-404
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

04/30/2026 CVE reserved
09/23/2026 +146 days Advisory disclosed
09/23/2026 +0 days VulDB entry created
09/23/2026 +0 days VulDB entry last update

Sourcesinfo

Advisory: asrmicro.com
Status: Confirmed

CVE: CVE-2026-42801 (🔒)
GCVE (CVE): GCVE-0-2026-42801
GCVE (VulDB): GCVE-100-408900

Entryinfo

Created: 09/23/2026 11:27
Changes: 09/23/2026 11:27 (61)
Complete: 🔍
Cache ID: 216::103

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