CVE-2025-27480

HIGH

Remote Desktop Gateway Service - Use After Free

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 2 public exploits for CVE-2025-27480. PoCs published by mrk336.

AI-analyzed exploit summary This repository contains a PowerShell-based proof-of-concept exploit for CVE-2025-27480, a buffer overflow vulnerability in OpenSSH 8.9p1. The exploit crafts a malicious SSH_USERAUTH packet with an oversized 'user' field to trigger arbitrary code execution, demonstrating a reverse shell payload.

Description

Use after free in Remote Desktop Gateway Service allows an unauthorized attacker to execute code over a network.

Exploits (2)

nomisec WORKING POC 1 stars
by mrk336 · poc
https://github.com/mrk336/CVE-2025-27480

This repository contains a PowerShell-based proof-of-concept exploit for CVE-2025-27480, a buffer overflow vulnerability in OpenSSH 8.9p1. The exploit crafts a malicious SSH_USERAUTH packet with an oversized 'user' field to trigger arbitrary code execution, demonstrating a reverse shell payload.

Classification
Working Poc 90%
Attack Type
Rce
Complexity
Moderate
Reliability
Reliable
Target: OpenSSH 8.9p1
No auth needed
Prerequisites: Network access to target OpenSSH server on port 22 · OpenSSH 8.9p1 running on the target
devstral-2 · analyzed Feb 16, 2026 Full analysis →
nomisec WORKING POC 1 stars
by mrk336 · poc
https://github.com/mrk336/CVE-2025-27480-The-Silent-Gateway-Risk

This repository contains a working proof-of-concept exploit for CVE-2025-27480, a stack buffer overflow vulnerability in a fictional BarServer service. The exploit sends a crafted HTTP GET request to overflow the stack and execute a reverse shell payload.

Classification
Working Poc 95%
Attack Type
Rce
Complexity
Moderate
Reliability
Reliable
Target: BarServer (fictional web service)
No auth needed
Prerequisites: Network access to the vulnerable service on TCP port 1234 · Target service must be running and vulnerable
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (1)

Core 1
Core References

Scores

CVSS v3 8.1
EPSS 0.0683
EPSS Percentile 93.2%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact total

Details

CWE
CWE-416
Status published
Products (7)
microsoft/windows_server_2012
microsoft/windows_server_2012 r2
microsoft/windows_server_2016 < 10.0.14393.7969
microsoft/windows_server_2019 < 10.0.17763.7136
microsoft/windows_server_2022 < 10.0.20348.3453
microsoft/windows_server_2022_23h2 < 10.0.25398.1551
microsoft/windows_server_2025 < 10.0.26100.3775
Published Apr 08, 2025
Tracked Since Feb 18, 2026