CVE-2026-42801 json
Deference after null check in as_rrc
published 2026-09-23 46 d ago modified 2026-09-23 46 d ago also EUVD-2026-85171
- cvss
- 7.4
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 21%
- public exploits
- 0
- none known
Summary
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.
Vendor advisories
What the vendors themselves say about their products: affected, fixed or not affected, and what to do.
red hat product security vex CVE-2026-42801 updated cvss 7.4
ASR Crane: Falcon: as_rrc: 3g.mod: ASR Crane, Falcon: NULL pointer dereference allows pointer manipulation
-
Red Hat OpenStack Platform 16.2 rhosp-rhel8/openstack-zaqar-wsgiaffected: workaround, no fix available
-
Red Hat OpenStack Platform 16.2 python3-falconnot affected: vulnerable code not present
Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 46 d ago
Exploit prediction
0.28% chance of exploitation in the next 30 days, higher than 21% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 7.4 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:L |
Affected products
- ASR Crane，Falcon
Classification
- Weakness
-
- CWE-476 NULL Pointer Dereference
References
Sources
- CVE List CVE-2026-42801
- NVD CVE-2026-42801
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.