CVE-2025-69809

CRITICALNVD 9.89.8—Elevated

9.8

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)
EPSS: 21.8%
KEV: Not listed

Published

March 16, 2026

Last Modified

April 27, 2026

Advisory Details (2)

Auto-updated May 10, 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

Data Freshness Timeline

(refreshed 19× in last 7d / 20× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-05-31 22:30 UTCepss_batch
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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 April 27, 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 21.8% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

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

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