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TI-2026-06304 Aliases CVE-2026-7183GHSA-pq9f-h5gq-3577

aligungr UERANSIM Radio Link Simulation Layer rls_pdu.cpp DecodeRlsMessage uncaught exception

Priority LOW 37CWE-248Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · Low
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-248.

Summary

A vulnerability has been found in aligungr UERANSIM up to 3.2.7. The affected element is the function rls::DecodeRlsMessage in the library src/lib/rls/rls_pdu.cpp of the component Radio Link Simulation Layer. The manipulation of the argument pduLength leads to uncaught exception. The attack may be initiated remotely. Upgrading to version 3.2.8 is sufficient to fix this issue. The identifier of the patch is ca1a66fffe282767bb08618af9f848e3b68ea47b. It is suggested to upgrade the affected component. This behavior is related to CVE-2024-37877. The vendor was contacted early, responded in a very professional manner and quickly released a fixed version of the affected product.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00405 35th percentileScored 2026-11-07
Fix Fixed UERANSIM (aligungr): 3.2.8

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
aligungrUERANSIM3.2.0; 3.2.1; 3.2.2; 3.2.3; 3.2.4; 3.2.5; 3.2.6; 3.2.73.2.8Patch availableCNA
  • UERANSIM Vendoraligungr Affected 3.2.0; 3.2.1; 3.2.2; 3.2.3; 3.2.4; 3.2.5; 3.2.6; 3.2.7 Fixed in 3.2.8 Patch available CNA

Remediation

  • Fix · CNA UERANSIM (aligungr) Fixed in 3.2.8

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-7183
  2. 2026-10-03 Alias added: GHSA-pq9f-h5gq-3577
  3. 2026-10-25 EPSS moved to the below the 50th percentile

References

Patch 2

Other 1

  • TI-2026-65068 aligungr UERANSIM nr-gnb encode.cpp DecodePlainMmMessage uncaught exception CVSS 4.0MEDIUM 6.9
  • TI-2026-65030 aligungr UERANSIM nr-gnb handler.cpp ULInformationTransfer memory corruption CVSS 4.0MEDIUM 6.9

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences