CVE-2026-104593

osmo-msc through 1.15.0 contains a stack-based buffer overflow in decode_mme_name() in src/libmsc...

7.5 HighFix available

osmo-msc through 1.15.0 contains a stack-based buffer overflow in decode_mme_name() in src/libmsc/sgs_iface.c. This allows a remote attacker to cause a denial of service.

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: None
Integrity: None
Availability: High

Exploit likelihood

0.45%Up 0.2 points since Oct 27, 2026

What each source reports

CVE List Score used 7.5

osmo-msc through 1.15.0 contains a stack-based buffer overflow in decode_mme_name() in src/libmsc/sgs_iface.c. This allows a remote attacker to cause a denial of service.

Record: CVE-2026-104593
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness: CWE-121
Updated: 2026-11-02

EUVDEUVD-2026-110099 7.5

osmo-msc through 1.15.0 contains a stack-based buffer overflow in decode_mme_name() in src/libmsc/sgs_iface.c. This allows a remote attacker to cause a denial of service.

Record: EUVD-2026-110099
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated: 2026-11-03

GitHub AdvisoriesGHSA-hwh6-m764-wjg7 7.5

osmo-msc through 1.15.0 contains a stack-based buffer overflow in decode_mme_name() in src/libmsc...

osmo-msc through 1.15.0 contains a stack-based buffer overflow in decode_mme_name() in src/libmsc/sgs_iface.c. This allows a remote attacker to cause a denial of service.

Record: GHSA-hwh6-m764-wjg7
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness: CWE-121
Updated: 2026-11-02

NVD 7.5

osmo-msc through 1.15.0 contains a stack-based buffer overflow in decode_mme_name() in src/libmsc/sgs_iface.c. This allows a remote attacker to cause a denial of service.

Record: CVE-2026-104593
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness: CWE-121
Updated: 2026-11-02

OSV 7.5

osmo-msc through 1.15.0 contains a stack-based buffer overflow in decode_mme_name() in src/libmsc/sgs_iface.c. This allows a remote attacker to cause a denial of service.

Record: CVE-2026-104593
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated: 2026-11-11

OSVDEBIAN-CVE-2026-104593 7.5

osmo-msc through 1.15.0 contains a stack-based buffer overflow in decode_mme_name() in src/libmsc/sgs_iface.c. This allows a remote attacker to cause a denial of service.

Record: DEBIAN-CVE-2026-104593
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated: 2026-11-03

OSVUBUNTU-CVE-2026-104593 7.5

osmo-msc through 1.15.0 contains a stack-based buffer overflow in decode_mme_name() in src/libmsc/sgs_iface.c. This allows a remote attacker to cause a denial of service.

Record: UBUNTU-CVE-2026-104593
CVSS 3.1: 7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated: 2026-11-04

Affected packages

Affected packages
Package	Affected	Fixed
`osmo-msc` Debian:12	All versions, plus listed versions 1.12.0+dfsg1-11.12.0+dfsg1-21.13.0+dfsg1-11.13.0+dfsg1-21.13.0+dfsg1-31.16.0+dfsg1-11.16.0+dfsg1-21.9.0+dfsg1-2	None known
`osmo-msc` Debian:13	All versions, plus listed versions 1.13.0+dfsg1-21.13.0+dfsg1-31.16.0+dfsg1-11.16.0+dfsg1-2	None known
`osmo-msc` Debian:14	before 1.16.0+dfsg1-2, plus listed versions 1.13.0+dfsg1-21.13.0+dfsg1-31.16.0+dfsg1-1	1.16.0+dfsg1-2
`osmo-msc` Ubuntu:20.04:LTS	All versions, plus listed versions 1.2.0-3	None known
`osmo-msc` Ubuntu:22.04:LTS	All versions, plus listed versions 1.6.3+dfsg1-21.6.3+dfsg1-2build2	None known
`osmo-msc` Ubuntu:24.04:LTS	All versions, plus listed versions 1.9.0+dfsg1-21.9.0+dfsg1-2build2	None known
`osmo-msc` Ubuntu:26.10	All versions, plus listed versions 1.13.0+dfsg1-2build1	None known
`osmo-msc` Ubuntu:26.04:LTS	All versions, plus listed versions 1.13.0+dfsg1-21.13.0+dfsg1-2build1	None known

History

History
Recorded	Changed	Sources
Nov 4, 2026	facts	EUVD, OSV
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-2026-104593 is a high vulnerability (CVSS 7.5) in osmo-msc, published October 26, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.45%, the 39th percentile. Fixed in osmo-msc 1.16.0+dfsg1-2.

References

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