Buffer overflow in Aligungr Ueransim
CVE-2026-100892
A vulnerability was found in aligungr UERANSIM up to 3.3.0. This affects the function ULInformationTransfer of the file src/gnb/rrc/handler.cpp of the component nr-gnb. Performing a manipulation of the argument dedicatedNASMessage results in memory corruption. The attack can be initiated remotely. The exploit has been made public and could be used. The vendor was contacted early about this disclosure but did not respond in any way.
Vulnerability class: Buffer Overflow
Published .
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
- Aligungr Ueransim — versions 3.0, 3.1, 3.2
Weakness classification (CWE)
References
- vuldb.com/vuln/410842 (technical-description, vdb-entry)
- vuldb.com/vuln/410842/cti (signature, permissions-required)
- vuldb.com/cve/CVE-2026-100892 (third-party-advisory)
- vuldb.com/submit/917313 (third-party-advisory)
- gist.github.com/centauruszzz/c69a6bd152f45d9ca8db981f7da34bed (exploit)
Frequently asked questions
- What is CVE-2026-100892?
- CVE-2026-100892 is a medium-severity vulnerability in Aligungr Ueransim, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 5.3/10. Published 2026-09-28.
- How severe is CVE-2026-100892?
- Medium severity. CVSS v3 base score is 5.3 out of 10.