What’s Vulnerable › Vulnerabilities

CVE-2026-101035: aligungr UERANSIM nr-gnb encode.cpp DecodePlainMmMessage uncaught exception

• Severity: medium (CVSS 5.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-09-28 · updated 2026-09-28
• Weakness: CWE-248

Description

A flaw has been found in aligungr UERANSIM up to 3.3.0. This affects the function DecodePlainMmMessage in the library src/lib/nas/encode.cpp of the component nr-gnb. Executing a manipulation can lead to uncaught exception. The attack can be launched remotely. The exploit has been published and may be used. This patch is called 1ae9bf2062b57595dbcbc4bc1d0a0ccf06815bac. It is best practice to apply a patch to resolve this issue.

Affected products

• aligungr UERANSIM: 3.0, 3.1, 3.2, 3.3.0

References

• https://gist.github.com/centauruszzz/f729edf89aa32ae3cfe4865c71ad1102
• https://github.com/aligungr/UERANSIM/
• https://github.com/aligungr/UERANSIM/commit/1ae9bf2062b57595dbcbc4bc1d0a0ccf06815bac
• https://vuldb.com/cve/CVE-2026-101035
• https://vuldb.com/submit/926089
• https://vuldb.com/vuln/410903
• https://vuldb.com/vuln/410903/cti

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