CVE-2025-69809

CRITICALNVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2026-03-16. NVD baseline CVSS 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Elevated
9.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 9.8Exploit: Elevated riskExposed: 0

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

A write-what-where condition in p2r3 Bareiron commit 8e4d40 allows unauthenticated attackers to write arbitrary values to memory, enabling arbitrary code execution via a crafted packet.

CVSS v3
9.8
EG Score
9.8(medium)
EG Risk
75(Attend)
EG Risk 75/100SSVC: 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
Severity98% × 45%
Exploitation40% × 40%
Automatability100% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS PROB
1%
EPSS %ILE
43%
KEV
Not listed

Published

March 16, 2026

Last Modified

June 17, 2026

Advisory Details (2)

Auto-updated Sep 14, 2026
No patch confirmed yet.
generic

bareiron-vr/CVE-2025-69809.md at main · vmpr0be/bareiron-vr · GitHub

https://github.com/vmpr0be/bareiron-vr/blob/main/CVE-2025-69809.md
generic

GitHub - p2r3/bareiron: Minimalist Minecraft server for memory-restrictive embedded systems · GitHub

https://github.com/p2r3/bareiron

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 6× in last 7d / 25× 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 235 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2025-69809?
CVE-2025-69809 is a critical vulnerability published on March 16, 2026. A write-what-where condition in p2r3 Bareiron commit 8e4d40 allows unauthenticated attackers to write arbitrary values to memory, enabling arbitrary code execution via a crafted packet.
When was CVE-2025-69809 disclosed?
CVE-2025-69809 was first published in the National Vulnerability Database on March 16, 2026, with the most recent update on June 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2025-69809 actively exploited?
CVE-2025-69809 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 56.6% of all scored CVEs.
What is the CVSS score of CVE-2025-69809?
CVE-2025-69809 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2025-69809?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2025-69809, 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-2025-69809

Explore →

Is Your Infrastructure Affected by CVE-2025-69809?

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

Start Free Scan →Browse All CVEs