CVE-2023-21492 — Android
MEDIUMCVE-2023-21492 is a medium-severity (CVSS 4.4) CWE-532 vulnerability in samsung android. It is in CISA's Known Exploited Vulnerabilities catalog (added 2023-05-19) — treat it as actively exploited and patch now. No vendor fix is recorded yet; mitigation options are listed below.
Kernel pointers are printed in the log file prior to SMR May-2023 Release 1 allows a privileged local attacker to bypass ASLR.
Exploitation Status
Actively exploited in the wild
- Confirmed by CISA's Known Exploited Vulnerabilities catalog on 2023-05-19. Federal agencies were required to remediate by 2023-06-09.
Exploitation and automatability from CISA (KEV catalog and SSVC triage) for CVE-2023-21492.
EPSS Exploitation Probability
Probability of exploitation in the next 30 days, from FIRST.org EPSS.
How urgent is this, really
CVE-2023-21492 by exploitation likelihood (EPSS) against impact (CVSS). Outside the shaded patch-first corner.
Where this sits among everything scored
Of 394,803 CVEs with a current EPSS score, this one falls in the < 10% band (highlighted). Counts from FIRST.org, log-scaled.
Description
Kernel pointers are printed in the log file prior to SMR May-2023 Release 1 allows a privileged local attacker to bypass ASLR.
Affected Products
androidsamsungResearch use only. For defensive security, authorized penetration testing, and academic research only. Never execute exploit code against systems without explicit written authorization.
Detection & mitigation playbook
Vendor / applianceDetect
Inventory every samsung android deployment and check each version against the affected-products list above.
Remediation status
No patch has shipped for CVE-2023-21492 yet — track the samsung android advisory for a fixed release and apply the workarounds below in the meantime.
Mitigate without a patch
If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands. Alongside that, restrict the management interface to trusted networks and apply the vendor's recommended configuration mitigations.
Frequently Asked Questions
Is CVE-2023-21492 being exploited in your environment?
Detect and block the exploit chain at execution, on systems you cannot patch yet.