CVE-2023-21492: Samsung Mobile Devices Insertion of Sensitive Information Into Log File Vulnerability
- Is it exploited?
Yes. CISA added it to the Known Exploited Vulnerabilities catalog on 19 May 2023, 15 days after the CVE record was published.
- How likely is exploitation in the next 30 days?
- 2.6%
EPSS score, percentile 85 of all scored records
- How severe?
- 4.4 Medium
CVSS v3.1 base score, given by the CNA
- What should I do?
Required action (CISA), due 9 Jun 2023: Apply updates per vendor instructions.
The CVE record links no vendor advisory, patch or mitigation.
- Which versions are affected?
Affected: Selected Android 11, 12, 13 devices up to, not including, SMR May-2023 Release 1
Source: CISA Known Exploited Vulnerabilities (KEV) catalog, 2026.10.28, as of 28 Oct 2026; FIRST Exploit Prediction Scoring System (EPSS), v2026.06.15, as of 28 Oct 2026; CVE List V5 (CVE Program), cve_2026-10-28_0000Z, as of 28 Oct 2026. About the data.
What to do
Required action, set by CISA
Apply updates per vendor instructions.
CISA due date for this action: 9 June 2023.
Advisories and patches
The CVE record links no vendor advisory, patch or mitigation.
Linked from CISA's catalog entry
- https://security.samsungmobile.com/securityUpdate.smsb
- https://nvd.nist.gov/vuln/detail/CVE-2023-21492
Affected products and versions
As listed in the CVE record.
| Status | Versions |
|---|---|
| Affected | Selected Android 11, 12, 13 devices up to, not including, SMR May-2023 Release 1 |
Source: CVE List V5 (CVE Program), cve_2026-10-28_0000Z, as of 28 Oct 2026. About the data.
About this 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.
Summary: CISA's KEV catalog, as of 28 Oct 2026.
- CISA added CVE-2023-21492 to its Known Exploited Vulnerabilities (KEV) catalog on 19 May 2023.
- CISA's ransomware flag for this entry is "Unknown": no evidence of ransomware use in the catalog, which is not proof of none.
- The due date CISA sets for the required action is 9 Jun 2023.
- The CVE record was published on 4 May 2023, 15 days before it was added to KEV.
- The CVE record carries a CVSS v3.1 base score of 4.4 (Medium), given by its CNA.
- FIRST's EPSS model puts the probability of exploitation in the next 30 days at 2.6% (percentile 85), as of 28 Oct 2026.
- CISA's SSVC assessment in the CVE record: exploitation active, automatable no, technical impact partial.
Source: CISA Known Exploited Vulnerabilities (KEV) catalog, 2026.10.28, as of 28 Oct 2026; CVE List V5 (CVE Program), cve_2026-10-28_0000Z, as of 28 Oct 2026; FIRST Exploit Prediction Scoring System (EPSS), v2026.06.15, as of 28 Oct 2026. About the data.
Description
Kernel pointers are printed in the log file prior to SMR May-2023 Release 1 allows a privileged local attacker to bypass ASLR.
Source: CVE List V5 (CVE Program), cve_2026-10-28_0000Z, as of 28 Oct 2026. About the data.
Weakness
- CWE-532: Insertion of Sensitive Information into Log File
CWE and CAPEC are maintained by MITRE; the entries are those named in the CVE record and the KEV entry.
Timeline
| Date | Event |
|---|---|
| 4 May 2023 | CVE record published |
| 19 May 2023 | Added to CISA KEV |
| 9 Jun 2023 | CISA due date for the required action |
| 21 Oct 2025 | CVE record last updated |
References
More exploited Samsung vulnerabilities
- CVE-2024-7399: Samsung MagicINFO 9 Server Path Traversal Vulnerability
- CVE-2025-21042: Samsung Mobile Devices Out-of-Bounds Write Vulnerability
- CVE-2025-21043: Samsung Mobile Devices Out-of-Bounds Write Vulnerability
- CVE-2025-4632: Samsung MagicINFO 9 Server Path Traversal Vulnerability
- CVE-2022-22265: Samsung Mobile Devices Use-After-Free Vulnerability
- CVE-2021-25371: Samsung Mobile Devices Unspecified Vulnerability