CVE-2026-104598
libosmo-sigtran through 2.2.1 contains an out-of-bounds read in the M3UA NOTIFY decoder in src...
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.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- None
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
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.
- Record
CVE-2026-104598- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N - Weakness
- CWE-125
- Updated
- 2026-11-02
EUVDEUVD-2026-110095
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.
- Record
EUVD-2026-110095- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-wjvp-f88x-8jqw
libosmo-sigtran through 2.2.1 contains an out-of-bounds read in the M3UA NOTIFY decoder in src...
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.
- Record
GHSA-wjvp-f88x-8jqw- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N - Weakness
- CWE-125
- Updated
- 2026-11-02
NVD
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.
- Record
CVE-2026-104598- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N - Weakness
- CWE-125
- Updated
- 2026-11-02
OSV
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.
- Record
CVE-2026-104598- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N - Updated
- 2026-11-11
OSVDEBIAN-CVE-2026-104598
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.
- Record
DEBIAN-CVE-2026-104598- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N - Updated
- 2026-11-03
OSVUBUNTU-CVE-2026-104598
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.
- Record
UBUNTU-CVE-2026-104598- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N - Updated
- 2026-11-04
Affected packages
| Package | Affected | Fixed |
|---|---|---|
libosmo-sigtranDebian:13 |
All versions, plus listed versions 2.1.0-32.2.1-12.2.1-22.2.1-32.3.0-12.3.0-2 |
None known |
libosmo-sigtranDebian:14 |
before 2.3.0-1, plus listed versions 2.1.0-32.2.1-12.2.1-22.2.1-3 |
2.3.0-1 |
libosmo-sigtranUbuntu:26.10 |
All versions, plus listed versions 2.1.0-3build1 |
None known |
libosmo-sigtranUbuntu:26.04:LTS |
All versions, plus listed versions 2.1.0-32.1.0-3build1 |
None known |
History
| Recorded | Changed | Sources |
|---|---|---|
| facts | EUVD, OSV | |
| first indexed | CVE List, EUVD, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-104598 is a high vulnerability (CVSS 7.5) in libosmo-sigtran, published October 26, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.39%, the 33rd percentile. Fixed in libosmo-sigtran 2.3.0-1.
References
osmocom.org/issues/7056
github.com/osmocom/libosmo-sigtran/commit/b554131f2cbb20ca9a9cf51ca17d73f644eff1f8
nvd.nist.gov/vuln/detail/CVE-2026-104598
security-tracker.debian.org/tracker/CVE-2026-104598
ubuntu.com/security/CVE-2026-104598
cve.org/CVERecord?id=CVE-2026-104598