CVE-2023-21492 Samsung Mobile Devices Insertion of Sensitive Information Into Log File Vulnerability
Samsung mobile devices running Android 11, 12, and 13 contain an insertion of sensitive information into log file vulnerability that allows a privileged, local attacker to conduct an address space layout randomization (ASLR) bypass.
From the CISA KEV catalogue version 2026.11.06, with Cybergen analysis. Updated 6 Nov 2026.
Should You Worry?
- CISA confirmed exploitation in the wild and added it to the Known Exploited Vulnerabilities catalogue on 19 May 2023.
- Rated Medium severity (CVSS 4.4, scored by Vendor).
- It has been in the catalogue for 1,267 days. Systems still unpatched now have almost certainly been scanned for it.
What It Is
Kernel pointers are printed in the log file prior to SMR May-2023 Release 1 allows a privileged local attacker to bypass ASLR.
Affected Versions
| Product | Versions |
|---|---|
| Samsung Mobile Samsung Mobile Devices | Selected Android 11, 12, 13 devices to before SMR May-2023 Release 1 |
From the public CVE record, as supplied by the vendor. Always confirm against the vendor advisory.
What To Do Now
- 1
Find it
Search your asset inventory and external attack surface for Samsung Mobile Devices. Include cloud images, appliances and anything a supplier runs for you.
Attack Surface Management - 2
- 3
Hunt for compromise
If an affected system was reachable before you patched, assume it may have been hit. Check logs, new accounts, web shells and outbound connections from the date of exposure.
Incident Response - 4
Prove it is fixed
Rescan or test the system after patching. Upgrades that fail silently and forgotten secondary instances are common.
Penetration Testing
The Compliance Clock
General guidance, not legal advice. Your obligations depend on your sector, scope and jurisdiction.
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