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Critical GNU Wget2 Vulnerability Let Remote Attackers to Overwrite Sensitive Files

## Cybersecurity: GNU Wget2 Vulnerability

NBy Noah RedmondJan 05, 20261 min read

Cybersecurity: GNU Wget2 Vulnerability

A critical security vulnerability has been identified in GNU Wget2, a widely utilized command-line tool for downloading files from the web.

The flaw, designated as CVE-2025-69194, enables remote attackers to overwrite arbitrary files on a victim's system, which may result in data loss or complete system compromise.

This vulnerability arises from improper validation of file paths in Metalink documents processed by Wget2. Metalink is a format that specifies download locations and file checksums. Attackers can craft malicious Metalink files containing path traversal sequences, misleading Wget2 into writing files to unintended locations on the filesystem.

Field Details

CVE ID CVE-2025-69194

A critical security vulnerability has been identified in GNU Wget2, a widely utilized command-line tool for downloading files from the web.
Noah Redmond · Thehackingpost

Severity Important / High

CVSS Score 8.8

Weakness CWE-22: Path Traversal

The vulnerability allows attackers to specify arbitrary locations for writing files, restricted only by the permissions of the user executing wget2. According to the Common Weakness Enumeration ( CWE-22 ), this path traversal flaw can have severe consequences. Attackers may overwrite critical system files, programs, or libraries used for code execution, modify security configuration files to bypass authentication mechanisms, or create backdoor accounts.

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In some cases, attackers can read sensitive files by directing wget2 to copy them to accessible locations. Red Hat has classified this vulnerability as of Important severity. While exploitation requires user interaction to process the malicious Metalink file, it can realistically lead to local code execution or data corruption .

The vulnerability may also cause denial-of-service attacks by corrupting or deleting essential system files. Currently, no complete mitigation is available that meets enterprise deployment standards. Users should avoid processing Metalink files from untrusted sources and monitor for security updates from the GNU Wget2 project. Organizations should assess their exposure and implement network-level controls to limit potential exploitation until patches become widely available.

Based on reporting by Cyber Security News.

AI transparency. This article was produced with the assistance of artificial intelligence and published under human editorial oversight. AI systems can make mistakes. Read how we use AI (EU AI Act, Art. 50).
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