osmo-msc stack buffer overflow enables denial of service
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-121 and the CVSS impact.
Summary
osmo-msc through 1.15.0 contains a stack-based buffer overflow (CWE-121) in decode_mme_name() in src/libmsc/sgs_iface.c. A remote attacker can cause a denial of service without special conditions.
Written with Claude Haiku 5.5 from the sources below · 2026-11-02
Description from the CNA
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- 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
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
Remediation
The sources list no fixed version for osmo-msc.
Written with Claude Haiku 5.5 from the sources below · 2026-11-02
Timeline
- 2026-10-26 Threatist record created from CVE-2026-104593
- 2026-10-27 Alias added: GHSA-hwh6-m764-wjg7
- 2026-11-02 CVSS score added · CISA ADP
- 2026-11-02 Weakness changed · CISA ADP
- 2026-11-02 CISA SSVC decision points changed
References
Sources
- CVE-2026-104593 · CVE Program
- CVE-2026-104593 · NVD
- FIRST EPSS
- GHSA-hwh6-m764-wjg7 · GitHub Advisory Database · CC BY 4.0
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