Out-of-bounds read in Samsung Exynos RRC message handling
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA.
Summary
Samsung Semiconductor Exynos 1280, Exynos 1330, Exynos 1380, Exynos 1480 and Exynos 2400, and other products, are affected before September 2026. Improper validation of an index or offset when a malformed RRC message is processed causes an out-of-bounds read (CWE-1285). A local attacker with low privileges can trigger a denial-of-service condition.
Written with Claude Haiku 5.5 from the sources below · 2026-11-05
Description from the CNA
Processing a malformed RRC message leads to an out-of-bounds read, resulting in a denial-of-service condition.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- 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 |
|---|---|---|---|---|---|
| Samsung Semiconductor | Exynos 1280 | before September 2026 | September 2026 | Patch available | CNA |
| Samsung Semiconductor | Exynos 1330 | before September 2026 | September 2026 | Patch available | CNA |
| Samsung Semiconductor | Exynos 1380 | before September 2026 | September 2026 | Patch available | CNA |
| Samsung Semiconductor | Exynos 1480 | before September 2026 | September 2026 | Patch available | CNA |
| Samsung Semiconductor | Exynos 2400 | before September 2026 | September 2026 | Patch available | CNA |
| Samsung Semiconductor | Exynos 1580 | before September 2026 | September 2026 | Patch available | CNA |
| Samsung Semiconductor | Exynos 2500 | 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 |
| Samsung Semiconductor | Exynos Modem 5410 | before September 2026 | September 2026 | Patch available | CNA |
- Exynos 1280 VendorSamsung Semiconductor Affected before September 2026 Fixed in September 2026 Patch available CNA
- Exynos 1330 VendorSamsung Semiconductor Affected before September 2026 Fixed in September 2026 Patch available CNA
- Exynos 1380 VendorSamsung Semiconductor Affected before September 2026 Fixed in September 2026 Patch available CNA
- Exynos 1480 VendorSamsung Semiconductor Affected before September 2026 Fixed in September 2026 Patch available CNA
- Exynos 2400 VendorSamsung Semiconductor Affected before September 2026 Fixed in September 2026 Patch available CNA
- Exynos 1580 VendorSamsung Semiconductor Affected before September 2026 Fixed in September 2026 Patch available CNA
- Exynos 2500 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
- Exynos Modem 5410 VendorSamsung Semiconductor Affected before September 2026 Fixed in September 2026 Patch available CNA
Remediation
Samsung Semiconductor lists September 2026 as the fixed version for Exynos 1280, Exynos 1330, Exynos 1380, Exynos 1480, Exynos 2400, Exynos 1580, Exynos 2500, Exynos Modem 5123, Exynos Modem 5300, Exynos Modem 5400 and Exynos Modem 5410.
Written with Claude Haiku 5.5 from the sources below · 2026-11-05
- Fix · CNA Exynos 1280 (Samsung Semiconductor) Fixed in September 2026
- Fix · CNA Exynos 1330 (Samsung Semiconductor) Fixed in September 2026
- Fix · CNA Exynos 1380 (Samsung Semiconductor) Fixed in September 2026
- Fix · CNA Exynos 1480 (Samsung Semiconductor) Fixed in September 2026
- Fix · CNA Exynos 2400 (Samsung Semiconductor) Fixed in September 2026
- Fix · CNA Exynos 1580 (Samsung Semiconductor) Fixed in September 2026
- Fix · CNA Exynos 2500 (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
- Fix · CNA Exynos Modem 5410 (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-2026-85313 Improper SDP payload handling in Samsung Exynos modem IMS stackPriority LOW 22
- 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-2026-85313 Improper SDP payload handling in Samsung Exynos modem IMS stackPriority LOW 22
- 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 1280, Exynos 1330 and 3 more products September 2026
3 records Highest priority Priority LOW 3 LOW
Other records, highest priority first
- TI-2026-85309 Samsung Exynos NR RRC crash on messages before authenticationPriority LOW 22
- TI-2026-85308 Memory corruption in Samsung Exynos NAS message handlingPriority LOW 22
- Release ·
Samsung Semiconductor Exynos 1580, Exynos 2500, Exynos Modem 5410 September 2026
2 records Highest priority Priority LOW 2 LOW
Other records, highest priority first
- TI-2026-85308 Memory corruption in Samsung Exynos NAS message handlingPriority LOW 22
Timeline
- 2026-11-05 Threatist record created from CVE-2026-48175
- 2026-11-05 Alias added: GHSA-x287-fw98-pr6f
- 2026-11-05 CVSS score added · CISA ADP
- 2026-11-05 CISA SSVC decision points changed
References
More Samsung Semiconductor vulnerabilities
- 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 —
- TI-2026-85325 Out-of-bounds write in Exynos NPU driver ioctl handler CVSS —
Sources
- CVE-2026-48175 · CVE Program
- CVE-2026-48175 · NVD
- FIRST EPSS
- GHSA-x287-fw98-pr6f · GitHub Advisory Database · CC BY 4.0
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