Improper SDP payload handling in Samsung Exynos modem IMS stack
Key facts
- Attack vector
- —
- Privileges required
- —
- User interaction
- —
- Attack complexity
- —
- Impact type
- —
- Confidentiality · integrity · availability
- —
- Fix status
- Fixed
No CVSS vector from any source. Fix status from CNA.
Summary
Samsung Exynos 1080, Exynos 9110, Exynos Modem 5123, Exynos Modem 5300 and Exynos Modem 5400 are affected before September 2026. Improper validation of the syntax of SDP payloads in the IMS stack of the Exynos modem (CWE-1286) lets an attacker cause a denial of service.
Written with Claude Haiku 5.5 from the sources below · 2026-11-05
Description from the CNA
In the Exynos modem's IMS stack, improper handling of SDP payload leads to a Denial of Service
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Samsung Semiconductor | Exynos 1080 | before September 2026 | September 2026 | Patch available | CNA |
| Samsung Semiconductor | Exynos 9110 | before September 2026 | September 2026 | Patch available | CNA |
| Samsung Semiconductor | Exynos Modem 5123 | before September 2026 | September 2026 | Patch available | CNA |
| Samsung Semiconductor | Exynos Modem 5300 | before September 2026 | September 2026 | Patch available | CNA |
| Samsung Semiconductor | Exynos Modem 5400 | before September 2026 | September 2026 | Patch available | CNA |
- Exynos 1080 VendorSamsung Semiconductor Affected before September 2026 Fixed in September 2026 Patch available CNA
- Exynos 9110 VendorSamsung Semiconductor Affected before September 2026 Fixed in September 2026 Patch available CNA
- Exynos Modem 5123 VendorSamsung Semiconductor Affected before September 2026 Fixed in September 2026 Patch available CNA
- Exynos Modem 5300 VendorSamsung Semiconductor Affected before September 2026 Fixed in September 2026 Patch available CNA
- Exynos Modem 5400 VendorSamsung Semiconductor Affected before September 2026 Fixed in September 2026 Patch available CNA
Remediation
Samsung fixes the flaw in September 2026 for Exynos 1080, Exynos 9110, Exynos Modem 5123, Exynos Modem 5300 and Exynos Modem 5400. The sources list no vendor advisory identifier for this fix.
Written with Claude Haiku 5.5 from the sources below · 2026-11-05
- Fix · CNA Exynos 1080 (Samsung Semiconductor) Fixed in September 2026
- Fix · CNA Exynos 9110 (Samsung Semiconductor) Fixed in September 2026
- Fix · CNA Exynos Modem 5123 (Samsung Semiconductor) Fixed in September 2026
- Fix · CNA Exynos Modem 5300 (Samsung Semiconductor) Fixed in September 2026
- Fix · CNA Exynos Modem 5400 (Samsung Semiconductor) Fixed in September 2026
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
Samsung Semiconductor Exynos Modem 5300, Exynos Modem 5400 September 2026
5 records Highest priority Priority LOW 5 LOW
Other records, highest priority first
- TI-2026-85310 Out-of-bounds read in Samsung Exynos RRC message handlingPriority LOW 24
- TI-2026-85311 Memory corruption from improper message validation in Samsung ExynosPriority LOW 22
- TI-2026-85309 Samsung Exynos NR RRC crash on messages before authenticationPriority LOW 22
- Release ·
Samsung Semiconductor Exynos Modem 5123 September 2026
4 records Highest priority Priority LOW 4 LOW
Other records, highest priority first
- TI-2026-85310 Out-of-bounds read in Samsung Exynos RRC message handlingPriority LOW 24
- TI-2026-85311 Memory corruption from improper message validation in Samsung ExynosPriority LOW 22
- TI-2026-85308 Memory corruption in Samsung Exynos NAS message handlingPriority LOW 22
Show 2 more groups
- Release ·
Samsung Semiconductor Exynos 9110 September 2026
3 records Highest priority Priority LOW 3 LOW
Other records, highest priority first
- TI-2026-85311 Memory corruption from improper message validation in Samsung ExynosPriority LOW 22
- TI-2026-85308 Memory corruption in Samsung Exynos NAS message handlingPriority LOW 22
- Release ·
Samsung Semiconductor Exynos 1080 September 2026
2 records Highest priority Priority LOW 2 LOW
Other records, highest priority first
- TI-2026-85311 Memory corruption from improper message validation in Samsung ExynosPriority LOW 22
Timeline
- 2026-11-05 Threatist record created from CVE-2026-48179
- 2026-11-05 Alias added: GHSA-8hfc-vwv2-85cc
References
More Samsung Semiconductor vulnerabilities
- TI-2026-85310 Out-of-bounds read in Samsung Exynos RRC message handling CVSS 3.1MEDIUM 5.5
- TI-2026-85330 Insufficient length validation in Samsung Exynos Modem GNSS loader CVSS —
- TI-2026-85329 Samsung Exynos GPU driver memory corruption from improper VMID validation CVSS —
- TI-2026-85328 Out-of-bounds memory access in Samsung Exynos device driver CVSS —
- TI-2026-85327 Reference count flaw in Samsung GPU driver corrupts memory CVSS —
- TI-2026-85326 Improper synchronization in Samsung Exynos GPU driver corrupts memory CVSS —
Sources
- CVE-2026-48179 · CVE Program
- CVE-2026-48179 · NVD
- FIRST EPSS
- GHSA-8hfc-vwv2-85cc · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences