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TI-2026-85304 Aliases CVE-2026-33971GHSA-5m5f-wh7x-v6rw

Improper pre-authentication handling in Samsung Exynos LTE RRC

Priority LOW 22CWE-400Published · Updated

Key facts

Attack vector
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Privileges required
—
User interaction
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Attack complexity
—
Impact type
Denial of service
Confidentiality · integrity · availability
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Fix status
Fixed

No CVSS vector from any source. Fix status from CNA. Impact type from CWE-400.

Summary

Samsung Semiconductor Exynos 850, Exynos 2100, Exynos 1280, Exynos 2200, Exynos 1330 and other products are affected before October 2026. The LTE RRC component mishandles messages received before authentication, which triggers a data abort (CWE-400). The result is a denial of service condition.

Written with Claude Haiku 5.5 from the sources below · 2026-11-05

Description from the CNA

In the LTE RRC component, improper handling of messages before authentication triggers a data abort, which leads to a denial‑of‑service condition.

Why it matters now

EPSS 0.0018 7th percentileScored 2026-11-07
Fix Fixed Exynos 850 (Samsung Semiconductor): October 2026Exynos 2100 (Samsung Semiconductor): October 2026+13 more products

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
Samsung SemiconductorExynos 850before October 2026October 2026Patch availableCNA
Samsung SemiconductorExynos 2100before October 2026October 2026Patch availableCNA
Samsung SemiconductorExynos 1280before October 2026October 2026Patch availableCNA
Samsung SemiconductorExynos 2200before October 2026October 2026Patch availableCNA
Samsung SemiconductorExynos 1330before October 2026October 2026Patch availableCNA
Samsung SemiconductorExynos 1380before October 2026October 2026Patch availableCNA
Samsung SemiconductorExynos 1480before October 2026October 2026Patch availableCNA
Samsung SemiconductorExynos 2400before October 2026October 2026Patch availableCNA
Samsung SemiconductorExynos 1580before October 2026October 2026Patch availableCNA
Samsung SemiconductorExynos 2500before October 2026October 2026Patch availableCNA
Samsung SemiconductorExynos 1680before October 2026October 2026Patch availableCNA
Samsung SemiconductorExynos W920before October 2026October 2026Patch availableCNA
Samsung SemiconductorExynos W930before October 2026October 2026Patch availableCNA
Samsung SemiconductorExynos W1000before October 2026October 2026Patch availableCNA
Samsung SemiconductorExynos Modem 5410before October 2026October 2026Patch availableCNA
  • Exynos 850 VendorSamsung Semiconductor Affected before October 2026 Fixed in October 2026 Patch available CNA
  • Exynos 2100 VendorSamsung Semiconductor Affected before October 2026 Fixed in October 2026 Patch available CNA
  • Exynos 1280 VendorSamsung Semiconductor Affected before October 2026 Fixed in October 2026 Patch available CNA
  • Exynos 2200 VendorSamsung Semiconductor Affected before October 2026 Fixed in October 2026 Patch available CNA
  • Exynos 1330 VendorSamsung Semiconductor Affected before October 2026 Fixed in October 2026 Patch available CNA
  • Exynos 1380 VendorSamsung Semiconductor Affected before October 2026 Fixed in October 2026 Patch available CNA
  • Exynos 1480 VendorSamsung Semiconductor Affected before October 2026 Fixed in October 2026 Patch available CNA
  • Exynos 2400 VendorSamsung Semiconductor Affected before October 2026 Fixed in October 2026 Patch available CNA
  • Exynos 1580 VendorSamsung Semiconductor Affected before October 2026 Fixed in October 2026 Patch available CNA
  • Exynos 2500 VendorSamsung Semiconductor Affected before October 2026 Fixed in October 2026 Patch available CNA
  • Exynos 1680 VendorSamsung Semiconductor Affected before October 2026 Fixed in October 2026 Patch available CNA
  • Exynos W920 VendorSamsung Semiconductor Affected before October 2026 Fixed in October 2026 Patch available CNA
  • Exynos W930 VendorSamsung Semiconductor Affected before October 2026 Fixed in October 2026 Patch available CNA
  • Exynos W1000 VendorSamsung Semiconductor Affected before October 2026 Fixed in October 2026 Patch available CNA
  • Exynos Modem 5410 VendorSamsung Semiconductor Affected before October 2026 Fixed in October 2026 Patch available CNA

Remediation

Samsung Semiconductor lists October 2026 as the fixed version for Exynos 850, Exynos 2100, Exynos 1280, Exynos 2200, Exynos 1330 and other products.

Written with Claude Haiku 5.5 from the sources below · 2026-11-05

  • Fix · CNA Exynos 850 (Samsung Semiconductor) Fixed in October 2026
  • Fix · CNA Exynos 2100 (Samsung Semiconductor) Fixed in October 2026
  • Fix · CNA Exynos 1280 (Samsung Semiconductor) Fixed in October 2026
  • Fix · CNA Exynos 2200 (Samsung Semiconductor) Fixed in October 2026
  • Fix · CNA Exynos 1330 (Samsung Semiconductor) Fixed in October 2026
  • Fix · CNA Exynos 1380 (Samsung Semiconductor) Fixed in October 2026
  • Fix · CNA Exynos 1480 (Samsung Semiconductor) Fixed in October 2026
  • Fix · CNA Exynos 2400 (Samsung Semiconductor) Fixed in October 2026
  • Fix · CNA Exynos 1580 (Samsung Semiconductor) Fixed in October 2026
  • Fix · CNA Exynos 2500 (Samsung Semiconductor) Fixed in October 2026
  • Fix · CNA Exynos 1680 (Samsung Semiconductor) Fixed in October 2026
  • Fix · CNA Exynos W920 (Samsung Semiconductor) Fixed in October 2026
  • Fix · CNA Exynos W930 (Samsung Semiconductor) Fixed in October 2026
  • Fix · CNA Exynos W1000 (Samsung Semiconductor) Fixed in October 2026
  • Fix · CNA Exynos Modem 5410 (Samsung Semiconductor) Fixed in October 2026

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    Samsung Semiconductor Exynos 2400 October 2026

    10 records Highest priority Priority LOW 10 LOW

    Other records, highest priority first

    • TI-2026-85326 Improper synchronization in Samsung Exynos GPU driver corrupts memoryPriority LOW 22
    • TI-2026-85320 Double free in Samsung Exynos NPU driverPriority LOW 22
    • TI-2026-85315 Samsung Exynos mishandles messages before AS security activationPriority LOW 22
    Show all 10 records →
  • Release ·

    Samsung Semiconductor Exynos 2500 October 2026

    9 records Highest priority Priority LOW 9 LOW

    Other records, highest priority first

    • TI-2026-85327 Reference count flaw in Samsung GPU driver corrupts memoryPriority LOW 22
    • TI-2026-85326 Improper synchronization in Samsung Exynos GPU driver corrupts memoryPriority LOW 22
    • TI-2026-85315 Samsung Exynos mishandles messages before AS security activationPriority LOW 22
    Show all 9 records →
Show 9 more groups
  • Release ·

    Samsung Semiconductor Exynos 2200 October 2026

    8 records Highest priority Priority LOW 8 LOW

    Other records, highest priority first

    • TI-2026-85326 Improper synchronization in Samsung Exynos GPU driver corrupts memoryPriority LOW 22
    • TI-2026-85315 Samsung Exynos mishandles messages before AS security activationPriority LOW 22
    • TI-2026-85312 Out of bound access in PPC on Samsung Exynos chipsetsPriority LOW 22
    Show all 8 records →
  • Release ·

    Samsung Semiconductor Exynos 1580, Exynos 1680 October 2026

    8 records Highest priority Priority LOW 8 LOW

    Other records, highest priority first

    • TI-2026-85327 Reference count flaw in Samsung GPU driver corrupts memoryPriority LOW 22
    • TI-2026-85326 Improper synchronization in Samsung Exynos GPU driver corrupts memoryPriority LOW 22
    • TI-2026-85315 Samsung Exynos mishandles messages before AS security activationPriority LOW 22
    Show all 8 records →
  • Release ·

    Samsung Semiconductor Exynos 1480 October 2026

    8 records Highest priority Priority LOW 8 LOW

    Other records, highest priority first

    • TI-2026-85326 Improper synchronization in Samsung Exynos GPU driver corrupts memoryPriority LOW 22
    • TI-2026-85320 Double free in Samsung Exynos NPU driverPriority LOW 22
    • TI-2026-85315 Samsung Exynos mishandles messages before AS security activationPriority LOW 22
    Show all 8 records →
  • Release ·

    Samsung Semiconductor Exynos 1280, Exynos 1330, Exynos 1380 October 2026

    6 records Highest priority Priority LOW 6 LOW

    Other records, highest priority first

    • TI-2026-85315 Samsung Exynos mishandles messages before AS security activationPriority LOW 22
    • TI-2026-85306 Memory corruption in Samsung Exynos baseband causes denial of servicePriority LOW 22
    • TI-2026-85303 Infinite loop in Samsung Exynos NAS decoding causes denial of servicePriority LOW 22
    Show all 6 records →
  • Release ·

    Samsung Semiconductor Exynos Modem 5410 October 2026

    5 records Highest priority Priority LOW 5 LOW

    Other records, highest priority first

    • TI-2026-85315 Samsung Exynos mishandles messages before AS security activationPriority LOW 22
    • TI-2026-85303 Infinite loop in Samsung Exynos NAS decoding causes denial of servicePriority LOW 22
    • TI-2026-85301 Out-of-bounds access in Samsung Exynos RRC Reconfiguration handlingPriority LOW 22
    Show all 5 records →
  • Release ·

    Samsung Semiconductor Exynos W1000 October 2026

    4 records Highest priority Priority LOW 4 LOW

    Other records, highest priority first

    • TI-2026-85315 Samsung Exynos mishandles messages before AS security activationPriority LOW 22
    • TI-2026-85303 Infinite loop in Samsung Exynos NAS decoding causes denial of servicePriority LOW 22
    • TI-2025-44014 Continuous control-plane messages crash Samsung Exynos basebandPriority LOW 22
    Show all 4 records →
  • Release ·

    Samsung Semiconductor Exynos W920, Exynos W930 October 2026

    4 records Highest priority Priority LOW 4 LOW

    Other records, highest priority first

    • TI-2026-85306 Memory corruption in Samsung Exynos baseband causes denial of servicePriority LOW 22
    • TI-2026-85303 Infinite loop in Samsung Exynos NAS decoding causes denial of servicePriority LOW 22
    • TI-2025-44014 Continuous control-plane messages crash Samsung Exynos basebandPriority LOW 22
    Show all 4 records →
  • Release ·

    Samsung Semiconductor Exynos 2100 October 2026

    4 records Highest priority Priority LOW 4 LOW

    Other records, highest priority first

    • TI-2026-85303 Infinite loop in Samsung Exynos NAS decoding causes denial of servicePriority LOW 22
    • TI-2026-85301 Out-of-bounds access in Samsung Exynos RRC Reconfiguration handlingPriority LOW 22
    • TI-2025-44014 Continuous control-plane messages crash Samsung Exynos basebandPriority LOW 22
    Show all 4 records →
  • Release ·

    Samsung Semiconductor Exynos 850 October 2026

    3 records Highest priority Priority LOW 3 LOW

    Other records, highest priority first

    • TI-2026-85303 Infinite loop in Samsung Exynos NAS decoding causes denial of servicePriority LOW 22
    • TI-2025-44014 Continuous control-plane messages crash Samsung Exynos basebandPriority LOW 22
    Show all 3 records →

Timeline

  1. 2026-11-05 Threatist record created from CVE-2026-33971
  2. 2026-11-05 Alias added: GHSA-5m5f-wh7x-v6rw

References

Other 1

  • 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 —
See all 34 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences