Cyber Posture

CVE-2025-12382

High

Published: 12 November 2025

Published
12 November 2025
Modified
11 December 2025
KEV Added
Patch
CVSS Score 8.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS Score 0.0010 26.5th percentile
Risk Priority 18 60% EPSS · 20% KEV · 20% CVSS

Description

Adversaries may backdoor web servers with web shells to establish persistent access to systems.

Security Summary

CVE-2025-12382 is an Improper Limitation of a Pathname (Path Traversal) vulnerability, classified under CWE-22, affecting AlgoSec Firewall Analyzer on Linux 64-bit systems. It enables an authenticated user to bypass path restrictions and upload files to a protected directory, facilitating code injection. The vulnerability impacts AlgoSec Firewall Analyzer versions A33.0 (up to build 320) and A33.10 (up to build 210). It carries a CVSS v3.1 base score of 8.8 (AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H), indicating high severity due to its potential for significant confidentiality, integrity, and availability impacts.

An attacker with authenticated access (low privileges required) can exploit this over the network with low complexity and no user interaction. By crafting malicious file upload requests that traverse restricted paths, the attacker gains the ability to inject and execute arbitrary code on the server, potentially leading to full system compromise, data exfiltration, or further lateral movement within the environment.

AlgoSec has published a technical advisory detailing the issue at https://techdocs.algosec.com/en/cves/Content/tech-notes/cves/cve-2025-12382.htm, which security practitioners should consult for specific patch information, workarounds, and affected build verification. The vulnerability was publicly disclosed on 2025-11-12.

Details

CWE(s)
CWE-22

Affected Products

algosec
firewall analyzer
a33.0, a33.10

MITRE ATT&CK Enterprise Techniques

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.
T1505.003 Web Shell Persistence
Adversaries may backdoor web servers with web shells to establish persistent access to systems.
Why these techniques?

Path traversal vulnerability in AlgoSec Firewall Analyzer (public-facing web application) enables exploitation (T1190) via authenticated file upload to protected directories, facilitating arbitrary code injection such as web shells (T1100).

Confidence: HIGH · MITRE ATT&CK Enterprise v19.0

References