CVE-2026-104598
HighCVSS 7.5Exploitation Probability (EPSS)
Low risk14th percentile - higher than 14% of all known CVEs
Summary
libosmo-sigtran through 2.2.1 contains an out-of-bounds read in the M3UA NOTIFY decoder in src/m3ua.c. This allows a remote attacker to obtain sensitive information.
Risk Assessment
A remote attacker could exploit this vulnerability to leak data from process memory, potentially exposing sensitive information. This may lead to a breach of communication confidentiality.
Recommendation
Update libosmo-sigtran to a version later than 2.2.1 that contains the fix. Until then, restrict access to services using this library.
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Original NVD description (English source)
libosmo-sigtran through 2.2.1 contains an out-of-bounds read in the M3UA NOTIFY decoder in src/m3ua.c. This allows a remote attacker to obtain sensitive information.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS

