CVE Catalog

CVE-2024-27619

HighCVSS 7.3
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Elevated risk
0.84%

54th percentile - higher than 54% of all known CVEs

Summary

A buffer overflow vulnerability has been discovered in the Dlink Dir-3040us A1 version 1.20b03a hotfix. Any user with read/write access to the FTP server can directly write to RAM, causing a buffer overflow if uploaded files exceed available memory. The FTP server allows directory change to root, one level above the USB flash directory root, and during upload, RAM fills up, leading to system resource exhaustion and a crash/reboot.

Risk Assessment

The risk is a Denial of Service (DoS) attack by intentionally overloading the device's RAM, causing it to hang and reboot. This can disrupt network operations and access to services provided by the router.

Recommendation

It is recommended to immediately update the firmware of the Dlink Dir-3040us device to the latest available version that fixes this vulnerability. Until the update, restrict FTP server access to trusted users only and monitor RAM usage.

Related vulnerabilities

Original NVD description (English source)

Dlink Dir-3040us A1 1.20b03a hotfix is vulnerable to Buffer Overflow. Any user having read/write access to ftp server can write directly to ram causing buffer overflow if file or files uploaded are greater than available ram. Ftp server allows change of directory to root which is one level up than root of usb flash directory. During upload ram is getting filled and causing system resource exhaustion (no free memory) which causes system to crash and reboot.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS