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TI-2026-80561 Aliases CVE-2026-104598GHSA-wjvp-f88x-8jqw

Out-of-bounds read in libosmo-sigtran M3UA NOTIFY decoder

Priority HIGH 72CWE-125Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Information disclosure
Confidentiality · integrity · availability
High · None · None
Fix status
No fix listed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-125 and the CVSS impact.

Summary

libosmo-sigtran through 2.2.1 is affected. The M3UA NOTIFY decoder in src/m3ua.c performs an out-of-bounds read (CWE-125). A remote attacker without privileges or user interaction can obtain sensitive information.

Written with Claude Haiku 5.5 from the sources below · 2026-11-06

Description from the CNA

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00389 33rd percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
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
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

Remediation

The sources list no fixed version for libosmo-sigtran.

Written with Claude Haiku 5.5 from the sources below · 2026-11-06

Vendor assessments

Red Hat

Red Hat's page for this CVE →

Not affected: 1 product
  • Red Hat

Timeline

  1. 2026-10-26 Threatist record created from CVE-2026-104598
  2. 2026-10-27 Alias added: GHSA-wjvp-f88x-8jqw
  3. 2026-11-02 CVSS score added · CISA ADP
  4. 2026-11-02 Weakness changed · CISA ADP
  5. 2026-11-02 CISA SSVC decision points changed
  6. 2026-11-02 Priority changed: LOW → HIGH
  7. 2026-11-06 Affected versions changed · Red Hat
  8. 2026-11-06 CVSS score added · Red Hat

References

Other 2

Sources

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