CVE-2026-21042

HIGHPre-NVD 8.48.4—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 8.4 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.2%, top 95% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, secondary
Trending — 3 sources updated this week
8.4EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 8.4Exploit: None knownExposed: 0

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

Out-of-bounds write in libsavsac.so prior to SMR Jul-2026 Release 1 allows local attackers to execute arbitrary code.

CVSS v3
8.4
EG Score
8.4(medium)
EG Risk
38(Track)
EG Risk 38/100SSVC: Track

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
Severity84% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
5%
KEV
Not listed

Published

July 10, 2026

Last Modified

July 11, 2026

Advisory Details (1)

Auto-updated Jul 10, 2026
No patch confirmed yet.
generic

Samsung Mobile Security

https://security.samsungmobile.com/securityUpdate.smsb?year=2026&month=07

Vendor Advisories for CVE-2026-21042(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Data Freshness Timeline

(refreshed 20× in last 7d / 108× 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 165 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-21042?
CVE-2026-21042 is a high vulnerability published on July 10, 2026. Out-of-bounds write in libsavsac.so prior to SMR Jul-2026 Release 1 allows local attackers to execute arbitrary code.
When was CVE-2026-21042 disclosed?
CVE-2026-21042 was first published in the National Vulnerability Database on July 10, 2026, with the most recent update on July 11, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-21042 actively exploited?
CVE-2026-21042 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 95.0% of all scored CVEs.
What is the CVSS score of CVE-2026-21042?
CVE-2026-21042 has a CVSS v3 base score of 8.4 (NVD).
How do I remediate CVE-2026-21042?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-21042, 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.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2026-21042

Explore →

Is Your Infrastructure Affected by CVE-2026-21042?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs