CVE-2026-104596

libosmocore through 1.14.1 contains out-of-bounds reads in the GSM 04.80 supplementary-service...

7.5 HighFix available

libosmocore through 1.14.1 contains out-of-bounds reads in the GSM 04.80 supplementary-service component parsers in src/gsm/gsm0480.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

0.39%Up 0.2 points since Oct 27, 2026

What each source reports

CVE List Score used 7.5

libosmocore through 1.14.1 contains out-of-bounds reads in the GSM 04.80 supplementary-service component parsers in src/gsm/gsm0480.c. This allows a remote attacker to obtain sensitive information.

Record: CVE-2026-104596
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Weakness: CWE-200
Updated: 2026-11-02

EUVDEUVD-2026-110097 7.5

libosmocore through 1.14.1 contains out-of-bounds reads in the GSM 04.80 supplementary-service component parsers in src/gsm/gsm0480.c. This allows a remote attacker to obtain sensitive information.

Record: EUVD-2026-110097
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Updated: 2026-11-02

GitHub AdvisoriesGHSA-539p-x22q-cp96 7.5

libosmocore through 1.14.1 contains out-of-bounds reads in the GSM 04.80 supplementary-service...

libosmocore through 1.14.1 contains out-of-bounds reads in the GSM 04.80 supplementary-service component parsers in src/gsm/gsm0480.c. This allows a remote attacker to obtain sensitive information.

Record: GHSA-539p-x22q-cp96
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Weakness: CWE-200
Updated: 2026-11-02

NVD 7.5

libosmocore through 1.14.1 contains out-of-bounds reads in the GSM 04.80 supplementary-service component parsers in src/gsm/gsm0480.c. This allows a remote attacker to obtain sensitive information.

Record: CVE-2026-104596
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Weakness: CWE-200
Updated: 2026-11-02

OSV 7.5

libosmocore through 1.14.1 contains out-of-bounds reads in the GSM 04.80 supplementary-service component parsers in src/gsm/gsm0480.c. This allows a remote attacker to obtain sensitive information.

Record: CVE-2026-104596
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Updated: 2026-11-02

OSVDEBIAN-CVE-2026-104596 7.5

libosmocore through 1.14.1 contains out-of-bounds reads in the GSM 04.80 supplementary-service component parsers in src/gsm/gsm0480.c. This allows a remote attacker to obtain sensitive information.

Record: DEBIAN-CVE-2026-104596
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Updated: 2026-11-02

OSVUBUNTU-CVE-2026-104596 7.5

libosmocore through 1.14.1 contains out-of-bounds reads in the GSM 04.80 supplementary-service component parsers in src/gsm/gsm0480.c. This allows a remote attacker to obtain sensitive information.

Record: UBUNTU-CVE-2026-104596
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Updated: 2026-11-02

Affected packages

Affected packages
Package	Affected	Fixed
`libosmocore` Debian:12	All versions, plus listed versions 1.10.0-11.10.0-21.11.0-11.11.0-21.14.0-1 Show 5 moreShow less 1.14.2-11.7.0-31.7.0-3.11.7.0-3.1~exp11.9.2-1	None known
`libosmocore` Debian:13	All versions, plus listed versions 1.11.0-21.14.0-11.14.2-1	None known
`libosmocore` Debian:14	before 1.14.2-1, plus listed versions 1.11.0-21.14.0-1	1.14.2-1
`libosmocore` Ubuntu:16.04:LTS	All versions, plus listed versions 0.9.0-4	None known
`libosmocore` Ubuntu:18.04:LTS	All versions, plus listed versions 0.9.0-7	None known
`libosmocore` Ubuntu:20.04:LTS	All versions, plus listed versions 0.12.1-30.12.1-3ubuntu1	None known
`libosmocore` Ubuntu:22.04:LTS	All versions, plus listed versions 1.4.2-31.6.0-31.6.0-3build1	None known
`libosmocore` Ubuntu:24.04:LTS	All versions, plus listed versions 1.7.0-31.7.0-3.1build11.7.0-3.1build2	None known
`libosmocore` Ubuntu:26.10	All versions, plus listed versions 1.11.0-2build1	None known
`libosmocore` Ubuntu:26.04:LTS	All versions, plus listed versions 1.11.0-21.11.0-2build1	None known

History

History
Recorded	Changed	Sources
Nov 2, 2026	first indexed	CVE List, EUVD, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2026-104596 is a high vulnerability (CVSS 7.5) in libosmocore, 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 libosmocore 1.14.2-1.

References

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