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UERANSIM

CVE-2026-7183 is a medium severity vulnerability in aligungr UERANSIM versions up to 3.2.7. It involves an uncaught exception triggered by manipulation of the pduLength argument in the function rls::DecodeRlsMessage within the Radio Link Simulation Layer. This issue can be exploited remotely and may cause application instability. The vendor has released version 3.2.8 which fixes this vulnerability. Users are advised to upgrade to this fixed version to mitigate the risk.

This vulnerability affects the function rls::DecodeRlsMessage in the src/lib/rls/rls_pdu.cpp component of aligungr UERANSIM up to version 3.2.7. Manipulating the pduLength argument leads to an uncaught exception, potentially causing a denial of service or application crash. The issue is remotely exploitable without requiring privileges or user interaction. The vendor responded promptly and released version 3.2.8 containing the patch identified by commit ca1a66fffe282767bb08618af9f848e3b68ea47b. This vulnerability is related to CVE-2024-37877.

Detailed information about CVE-2026-7183: Uncaught Exception in aligungr UERANSIM affecting aligungr UERANSIM. Get real-time updates, technical details, and mit

CVE-2026-7183: Uncaught Exception in aligungr UERANSIM - Live Threat Intelligence - Threat Radar | OffSeq.com

CVE-2026-7183: Uncaught Exception in aligungr UERANSIM

UERANSIM before 3.2.6 allows out-of-bounds read when a RLS packet is sent to gNodeB with malformed PDU length. This occurs in function readOctetString in src/utils/octet_view.cpp and in function DecodeRlsMessage in src/lib/rls/rls_pdu.cpp

CVE-2024-37877 is a vulnerability identified in UERANSIM, an open-source 5G core network simulator, affecting versions prior to 3.2.6. The issue is an out-of-bounds read triggered when a malformed RLS (Radio Link Status) packet is sent to a gNodeB component with an incorrect Protocol Data Unit (PDU) length. Specifically, the vulnerability arises in the readOctetString function located in src/utils/octet_view.cpp and the DecodeRlsMessage function in src/lib/rls/rls_pdu.cpp. These functions improperly handle the length field of the RLS packet, leading to reading memory beyond the intended buffer boundaries (CWE-125). This can cause leakage of memory contents, potentially exposing sensitive information or causing application instability. The vulnerability requires an attacker to have network access to the target gNodeB and possess low-level privileges (PR:L) with user interaction (UI:R), indicating that some form of user action is needed to trigger the flaw. The CVSS v3.1 base score is 5.5, categorizing it as medium severity, with attack vector being network (AV:N), low attack complexity (AC:L), and limited impact on confidentiality, integrity, and availability (C:L/I:L/A:L). No public exploits or active exploitation in the wild have been reported to date. This vulnerability is particularly relevant for organizations deploying UERANSIM in their 5G network testing or research environments, as exploitation could lead to partial disclosure of memory data or service disruption. The lack of available patches at the time of reporting necessitates prompt attention to updates once released.

Detailed information about CVE-2024-37877: n/a. Get real-time updates, technical details, and mitigation strategies.

CVE-2024-37877: n/a - Live Threat Intelligence - Threat Radar | OffSeq.com

CVE-2024-37877: n/a


CVE-2026-7183: Uncaught Exception in aligungr UERANSIMCVE-2026-7183 0 CVE-2026-7183 is a medium severity vulnerability in aligungr UERANSIM versions up to 3.2.7. It involves an uncaught exception triggered by manipulation of the pduLength argument in the function rls::DecodeRlsMessage within the Radio Link Simulation Layer. This issue can be exploited remotely and may cause application instability. The vendor has released version 3.2.8 which fixes this vulnerability. Users are advised to upgrade to this fixed version to mitigate the risk. MediumVulnerability#cve #cve-2026-7183 Join the discussion	CVE Database V5	04/27/2026, 22:30:15 UTC Added: 04/27/2026, 22:39:11 UTC
CVE-2024-37877: n/aCVE-2024-37877 0 UERANSIM before 3.2.6 allows out-of-bounds read when a RLS packet is sent to gNodeB with malformed PDU length. This occurs in function readOctetString in src/utils/octet_view.cpp and in function DecodeRlsMessage in src/lib/rls/rls_pdu.cpp MediumVulnerabilityUnited StatesGermanySouth Korea+7#cve #cve-2024-37877 Join the discussion	CVE Database V5	06/13/2024, 00:00:00 UTC Added: 02/25/2026, 21:41:06 UTC

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