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Fencer Intel
high 7.4

CVE-2026-42801 json

Deference after null check in as_rrc

published last mo. modified last mo. 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.

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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-wsgi
    affected: workaround, no fix available
  • Red Hat OpenStack Platform 16.2 python3-falcon
    not 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
last mo.

Exploit prediction

0.28% chance of exploitation in the next 30 days, higher than 21% of all scored CVEs (FIRST EPSS, 2026-11-09).

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

References

Sources

Fencer Intel 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.