CVE-2025-69807

High

Published: 12 February 2026

Published

12 February 2026

Modified

23 February 2026

KEV Added

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Patch

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CVSS Score 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS Score 0.0011 29.1th percentile

Risk Priority 15 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2025-69807 is a high-severity Classic Buffer Overflow (CWE-120) vulnerability in P2R3 Bareiron. Its CVSS base score is 7.5 (High).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked at the 29.1th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

Threat & Defense at a Glance

What attackers do: exploitation maps to Exploit Public-Facing Application (T1190) and 1 other technique.

Threat & Defense Details

Likely Mitigating ControlsAI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

SC-27 Platform-independent Applications

addresses: CWE-120

Platform-independent managed code eliminates the need for unchecked native buffer copies that are the root cause of classic buffer overflows.

MITRE ATT&CK Enterprise TechniquesAI

T1190 Exploit Public-Facing Application Initial Access

Adversaries may attempt to exploit a weakness in an Internet-facing host or system to initially access a network.

attack.mitre.org →

T1499.004 Application or System Exploitation Impact

Adversaries may exploit software vulnerabilities that can cause an application or system to crash and deny availability to users.

attack.mitre.org →

Why these techniques?

Remote unauthenticated buffer overflow in public-facing server component directly enables T1190 (Exploit Public-Facing Application) and T1499.004 (Application or System Exploitation) for denial-of-service impact.

Confidence: HIGH · MITRE ATT&CK Enterprise v18.1

NVD Description

p2r3 Bareiron commit: 8e4d4020d is vulnerable to Buffer Overflow, which allows unauthenticated remote attackers to cause a denial of service via a packet sent to the server.

Deeper analysisAI

CVE-2025-69807 is a buffer overflow vulnerability (CWE-120) in the p2r3 Bareiron software at commit 8e4d4020d. This flaw affects the server component, enabling unauthenticated remote attackers to trigger the issue through network traffic. The vulnerability carries a CVSS v3.1 base score of 7.5 (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H), indicating high severity primarily due to its impact on availability.

Attackers with network access to the vulnerable Bareiron server can exploit this by sending a specially crafted packet, causing a buffer overflow that leads to a denial of service. No authentication, privileges, or user interaction are required, and exploitation is straightforward given the low attack complexity.

Mitigation guidance and additional details are available in the referenced advisories at https://github.com/p2r3/bareiron and https://github.com/vmpr0be/bareiron-vr/blob/main/CVE-2025-69807.md.