An issue was discovered on Samsung Galaxy S3 i9305 4.4.4 devices. The WEP, WPA, WPA2, and WPA3 implementations accept second (or subsequent) broadcast fragments even when sent in plaintext and process them as full unfragmented frames. An adversary can abuse this to inject arbitrary network packets independent of the network configuration.
An official patch is available. Apply the patch as soon as possible.
CVSS v4.0 Metrics
Exploitability
Attack VectorAdjacent
ComplexityLow
RequirementsPresent
PrivilegesNone
User InteractionNone
Threat
Exploit MaturityPoC
Vulnerable System
ConfidentialityNone
IntegrityHigh
AvailabilityNone
Subsequent System
ConfidentialityNone
IntegrityNone
AvailabilityNone
Supplemental
SafetyNegligible
AutomatableYes
RecoveryAutomatic
Value DensityConcentrated
UrgencyMedium
Patch StatusOfficial Patch
Change Log
| Date | Source | Changes | Score |
|---|
| 2026-07-21 | PoC | E: U→P | 2.3 → 5.4 |
| 2026-07-21 | nvd | AV: P→A, AC: H→L, PR: H→N, UI: A→N, VI: N→H | 0.0 → 2.3 |
| 2026-07-21 | nvd | patch: Unavailable→Official Patch | 0.0 → 0.0 |
| 2026-07-21 | cve.org | initial, patch: Unavailable | 0.0 |
Affected Software
| Vendor | Product | Version |
|---|
| samsung | galaxy_i9305_firmware | 4.4.4 |
| siemens | 6gk5763-1al00-3aa0_firmware | < 1.2 |
| siemens | 6gk5763-1al00-3da0_firmware | < 1.2 |
| siemens | 6gk5763-1al00-7da0_firmware | < 1.2 |
| siemens | 6gk5766-1ge00-3da0_firmware | < 1.2 |
| siemens | 6gk5766-1ge00-3db0_firmware | < 1.2 |
| siemens | 6gk5766-1ge00-7da0_firmware | < 1.2 |
| siemens | 6gk5766-1ge00-7db0_firmware | < 1.2 |
| siemens | 6gk5766-1ge00-7ta0_firmware | < 1.2 |
| siemens | 6gk5766-1ge00-7tb0_firmware | < 1.2 |
| siemens | 6gk5766-1je00-3da0_firmware | < 1.2 |
| siemens | 6gk5766-1je00-7da0_firmware | < 1.2 |
| siemens | 6gk5766-1je00-7ta0_firmware | < 1.2 |
Published: 2021-05-11
