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Vulnerability record · CVE-2025-69809 · published 16 March 2026

CVE-2025-69809: P2r3 bareiron vulnerability

P2r3 · Bareiron

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.

9.8 CVSS 3.1 Critical EPSS 0.53% · top 57.8% CWE-123 · CWE-123
9.8CVSS 3.1 base score
0.53%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References
17 Jun 2026Last modified by NVD

Description

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:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/p2r3/bareiron Product
https://github.com/vmpr0be/bareiron-vr/blob/main/CVE-2025-69809.md Third Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.1CVE-2025-69808P2r3 bareiron out-of-bounds read vulnerabilityAn out-of-bounds memory access (OOB) in p2r3 Bareiron commit 8e4d40 allows unauthenticated attackers to access sensitive information and cause a Deni…EPSS 0.35%7.5CVE-2025-69806P2r3 bareiron out-of-bounds read vulnerabilityp2r3 bareiron commit: 8e4d4020d contains an Out-of-bounds Read, which allows unauthenticated remote attackers to get relative information leakage via…EPSS 0.34%7.5CVE-2025-69807P2r3 bareiron classic buffer overflow vulnerabilityp2r3 Bareiron commit: 8e4d4020d is vulnerable to Buffer Overflow, which allows unauthenticated remote attackers to cause a denial of service via a pa…EPSS 0.40%8.2CVE-2025-22225VMware ESXi VMX arbitrary write enables sandbox escapeVMware ESXi contains an arbitrary write vulnerability in which a malicious actor with privileges within the VMX process can trigger an arbitrary kern…KEVEPSS 1.00%analysed

Source: NIST National Vulnerability Database (record CVE-2025-69809), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.