CVE-2025-21042

CRITICALNVD 8.89.0▲
EchelonGraph scoreHIGH confidence

Score elevated to 9.0 because this CVE is listed on the CISA Known Exploited Vulnerabilities catalog (added 2025-11-10), indicating real-world exploitation has been confirmed by US federal agencies. NVD baseline CVSS 8.8 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: 33%CVSS: 8.8Exploit: cisa kev · ssvc active · epss top5pctExposed: 0

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

Out-of-bounds write in libimagecodec.quram.so prior to SMR Apr-2025 Release 1 allows remote attackers to execute arbitrary code.

CVSS v3
8.8
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
33%
EPSS %ILE
98%
KEV
⚠ Exploited

Published

September 12, 2025

Last Modified

November 12, 2025

Advisory Details (3)

Auto-updated Jun 1, 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-2025-21042
generic🔴 Active Exploitation

LANDFALL: New Commercial-Grade Android Spyware in Exploit Chain Targeting Samsung Devices

https://unit42.paloaltonetworks.com/landfall-is-new-commercial-grade-android-spyware/
generic🔴 Active Exploitation

Samsung Mobile Security

https://security.samsungmobile.com/securityUpdate.smsb?year=2025&month=04

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 59× in last 7d / 243× 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 565 total refreshes for this CVE.

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

Frequently asked(6)

What is CVE-2025-21042?
CVE-2025-21042 is a critical vulnerability published on September 12, 2025. Out-of-bounds write in libimagecodec.quram.so prior to SMR Apr-2025 Release 1 allows remote attackers to execute arbitrary code.
When was CVE-2025-21042 disclosed?
CVE-2025-21042 was first published in the National Vulnerability Database on September 12, 2025, with the most recent update on November 12, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2025-21042 actively exploited?
Yes. CISA added CVE-2025-21042 to the Known Exploited Vulnerabilities catalog on November 10, 2025, 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-2025-21042?
CVE-2025-21042 has a CVSS v3 base score of 8.8 (NVD). EchelonGraph synthesises NVD + CISA KEV + FIRST EPSS + GHSA into a combined EG score of 9.0.
Which products are affected by CVE-2025-21042?
CVE-2025-21042 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-2025-21042?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2025-21042, 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

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