CVE-2023-21492

CRITICALNVD 4.49.0▲
EchelonGraph scoreHIGH confidence

Score elevated to 9.0 because this CVE is listed on the CISA Known Exploited Vulnerabilities catalog (added 2023-05-19), indicating real-world exploitation has been confirmed by US federal agencies. NVD baseline CVSS 4.4 retained for reference. Confidence: HIGH.

Triggered by: CISA KEV (actively exploited)
Sources: cisa_kev, epss, ghsa, nvd
Trending — 4 sources updated this weekExploited in the wild
9.0EG
EchelonGraph verdictPatch nowTreat as an emergency — this is being exploited.
  • Actively exploited in the wild (CISA-KEV)
CISA-KEV: ExploitedEPSS PROB: 3%CVSS: 4.4Exploit: cisa kev · ssvc activeExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

Kernel pointers are printed in the log file prior to SMR May-2023 Release 1 allows a privileged local attacker to bypass ASLR.

CVSS v3
4.4
EG Score
9.0(high)
EG Risk
81(Attend)
EG Risk 81/100SSVC: Attend

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity90% × 45%
Exploitation100% × 40%
Automatability0% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS PROB
3%
EPSS %ILE
84%
KEV
⚠ Exploited

Published

May 4, 2023

Last Modified

October 28, 2025

Advisory Details (2)

Auto-updated Jun 14, 2026
⚠️ Active exploitation confirmed. Patch available. Sources: cisa.
cisa Patch Available🔴 Active Exploitation

Known Exploited Vulnerabilities Catalog | CISA

Known Exploited Vulnerabilities Catalog | CISA. Listed in CISA Known Exploited Vulnerabilities catalog.

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-21492
generic🔴 Active Exploitation

Samsung Mobile Security

https://security.samsungmobile.com/securityUpdate.smsb?year=2023&month=05

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 60× in last 7d / 256× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 862 total refreshes for this CVE.

  1. 2026-09-08 13:54 UTCGHSA enrichment
  2. 2026-09-08 10:03 UTCGHSA enrichment
  3. 2026-09-08 06:12 UTCGHSA enrichment
  4. 2026-09-08 02:20 UTCGHSA enrichment
  5. 2026-09-07 22:31 UTCGHSA enrichment
  6. 2026-09-07 18:41 UTCEG score recompute
  7. 2026-09-07 18:41 UTCGHSA enrichment
  8. 2026-09-07 15:59 UTCEPSS rescore
  9. 2026-09-07 14:50 UTCGHSA enrichment
  10. 2026-09-07 11:00 UTCGHSA enrichment
  11. 2026-09-07 07:09 UTCGHSA enrichment
  12. 2026-09-07 03:16 UTCGHSA enrichment
  13. 2026-09-06 23:24 UTCGHSA enrichment
  14. 2026-09-06 19:34 UTCGHSA enrichment
  15. 2026-09-06 15:43 UTCEG score recompute
  16. 2026-09-06 15:43 UTCGHSA enrichment
  17. 2026-09-06 13:45 UTCEPSS rescore
  18. 2026-09-06 11:51 UTCGHSA enrichment
  19. 2026-09-06 08:01 UTCGHSA enrichment
  20. 2026-09-06 04:11 UTCGHSA enrichment
  21. 2026-09-06 00:22 UTCGHSA enrichment
  22. 2026-09-05 20:30 UTCGHSA enrichment
  23. 2026-09-05 16:40 UTCEG score recompute
  24. 2026-09-05 16:40 UTCGHSA enrichment
  25. 2026-09-05 15:25 UTCEPSS rescore
Show 75 more
  1. 2026-09-05 12:51 UTCGHSA enrichment
  2. 2026-09-05 09:01 UTCGHSA enrichment
  3. 2026-09-05 05:10 UTCGHSA enrichment
  4. 2026-09-05 01:20 UTCGHSA enrichment
  5. 2026-09-04 21:30 UTCGHSA enrichment
  6. 2026-09-04 17:39 UTCEG score recompute
  7. 2026-09-04 17:39 UTCGHSA enrichment
  8. 2026-09-04 17:38 UTCCISA KEV update
  9. 2026-09-04 13:58 UTCEPSS rescore
  10. 2026-09-04 13:57 UTCEPSS rescore
  11. 2026-09-04 13:49 UTCGHSA enrichment
  12. 2026-09-04 09:59 UTCGHSA enrichment
  13. 2026-09-04 06:08 UTCEG score recompute
  14. 2026-09-04 06:08 UTCGHSA enrichment
  15. 2026-09-04 05:04 UTCEPSS rescore
  16. 2026-09-04 02:16 UTCGHSA enrichment
  17. 2026-09-03 22:25 UTCGHSA enrichment
  18. 2026-09-03 18:34 UTCGHSA enrichment
  19. 2026-09-03 14:43 UTCGHSA enrichment
  20. 2026-09-03 10:50 UTCGHSA enrichment
  21. 2026-09-03 06:57 UTCGHSA enrichment
  22. 2026-09-03 03:07 UTCGHSA enrichment
  23. 2026-09-02 23:15 UTCGHSA enrichment
  24. 2026-09-02 19:24 UTCGHSA enrichment
  25. 2026-09-02 17:33 UTCCISA KEV update
  26. 2026-09-02 15:31 UTCEG score recompute
  27. 2026-09-02 15:31 UTCGHSA enrichment
  28. 2026-09-02 14:09 UTCEPSS rescore
  29. 2026-09-02 11:39 UTCGHSA enrichment
  30. 2026-09-02 07:46 UTCGHSA enrichment
  31. 2026-09-02 03:56 UTCGHSA enrichment
  32. 2026-09-02 00:02 UTCGHSA enrichment
  33. 2026-09-01 20:12 UTCGHSA enrichment
  34. 2026-09-01 16:22 UTCEG score recompute
  35. 2026-09-01 16:22 UTCGHSA enrichment
  36. 2026-09-01 13:51 UTCEPSS rescore
  37. 2026-09-01 12:31 UTCGHSA enrichment
  38. 2026-09-01 08:41 UTCGHSA enrichment
  39. 2026-09-01 04:51 UTCEG score recompute
  40. 2026-09-01 04:51 UTCGHSA enrichment
  41. 2026-09-01 01:00 UTCGHSA enrichment
  42. 2026-08-31 21:10 UTCGHSA enrichment
  43. 2026-08-31 17:19 UTCGHSA enrichment
  44. 2026-08-31 14:19 UTCCISA KEV update
  45. 2026-08-31 13:28 UTCGHSA enrichment
  46. 2026-08-31 09:38 UTCGHSA enrichment
  47. 2026-08-31 05:47 UTCGHSA enrichment
  48. 2026-08-31 01:58 UTCGHSA enrichment
  49. 2026-08-30 22:08 UTCEG score recompute
  50. 2026-08-30 22:08 UTCGHSA enrichment
  51. 2026-08-30 19:15 UTCEPSS rescore
  52. 2026-08-30 18:18 UTCGHSA enrichment
  53. 2026-08-30 14:28 UTCGHSA enrichment
  54. 2026-08-30 10:38 UTCGHSA enrichment
  55. 2026-08-30 06:45 UTCGHSA enrichment
  56. 2026-08-30 02:55 UTCEG score recompute
  57. 2026-08-30 02:55 UTCGHSA enrichment
  58. 2026-08-30 01:19 UTCEPSS rescore
  59. 2026-08-29 23:04 UTCGHSA enrichment
  60. 2026-08-29 19:11 UTCGHSA enrichment
  61. 2026-08-29 15:20 UTCGHSA enrichment
  62. 2026-08-29 11:29 UTCGHSA enrichment
  63. 2026-08-29 07:37 UTCGHSA enrichment
  64. 2026-08-29 03:45 UTCGHSA enrichment
  65. 2026-08-28 23:55 UTCEG score recompute
  66. 2026-08-28 23:55 UTCGHSA enrichment
  67. 2026-08-28 21:38 UTCEPSS rescore
  68. 2026-08-28 20:04 UTCGHSA enrichment
  69. 2026-08-28 16:12 UTCGHSA enrichment
  70. 2026-08-28 12:20 UTCGHSA enrichment
  71. 2026-08-28 08:29 UTCGHSA enrichment
  72. 2026-08-28 04:38 UTCGHSA enrichment
  73. 2026-08-28 00:47 UTCGHSA enrichment
  74. 2026-08-27 20:57 UTCGHSA enrichment
  75. 2026-08-27 17:22 UTCCISA KEV update

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Frequently asked(6)

What is CVE-2023-21492?
CVE-2023-21492 is a critical vulnerability published on May 4, 2023. Kernel pointers are printed in the log file prior to SMR May-2023 Release 1 allows a privileged local attacker to bypass ASLR.
When was CVE-2023-21492 disclosed?
CVE-2023-21492 was first published in the National Vulnerability Database on May 4, 2023, with the most recent update on October 28, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2023-21492 actively exploited?
Yes. CISA added CVE-2023-21492 to the Known Exploited Vulnerabilities catalog on May 19, 2023, affecting Samsung Mobile Devices. KEV listing indicates confirmed exploitation in the wild; this CVE warrants immediate patching attention.
What is the CVSS score of CVE-2023-21492?
CVE-2023-21492 has a CVSS v3 base score of 4.4 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 9.0.
Which products are affected by CVE-2023-21492?
CVE-2023-21492 affects Samsung Mobile Devices. The full affected-products list, including version ranges and fixed versions, is shown in the Affected Packages section of this page.
How do I remediate CVE-2023-21492?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-21492, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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