CVE-2008-1610: TallSoft Quick TFTP Server Pro stack buffer overflow in request mode field

Automated analysis

Generated by VULONE's analysis model from the NVD record, CISA KEV and EPSS data on 20 September 2026. Confidence: medium.

high priorityRemote, unauthenticated stack overflow with public exploit code and very high EPSS probability, though no confirmed in-the-wild KEV listing and no fixed version stated in the record.

What it is

TallSoft Quick TFTP Server Pro 2.1 contains a stack-based buffer overflow (CWE-119) triggered by an overly long mode field in a TFTP read or write request. A remote, unauthenticated attacker can crash the service or potentially execute arbitrary code on the host. The flaw matters because TFTP servers are typically reachable on the network without credentials and often run with elevated privileges.

Impact

An attacker can cause a denial of service against the TFTP service, or, given the stack overflow, potentially execute arbitrary code in the context of the server process. Successful code execution would give the attacker a foothold on the host running the TFTP service.

Attack surface

The flaw is reached over the network via a crafted TFTP read (RRQ) or write (WRQ) request containing a long mode field; the CVSS vector AV:N/AC:L/Au:N confirms no authentication is required. No user interaction is indicated by the description or vector.

Exploitation

CISA KEV does not list this CVE, but public exploit code is referenced (Offensive Security PoC and Exploit-DB 5315), and EPSS reports a 30-day probability of roughly 0.54 (98.95th percentile), indicating high likelihood of exploitation activity.

What to do

• Apply the vendor fix or upgrade Quick TFTP Server Pro beyond 2.1 if a patched release exists; the record does not name a fixed version, so confirm with the vendor.
• If no patch is available, restrict TFTP access to trusted hosts via firewall or ACL rules and disable the service where it is not required.
• Run the TFTP service with least privilege and in an isolated network segment to limit the impact of code execution.
• Monitor vendor advisories (Secunia advisory 29494) for updated guidance and replacement builds.

Detection

• Inspect TFTP request logs or packet captures for RRQ/WRQ packets with abnormally long mode fields or malformed opcodes.
• Alert on TFTP server process crashes, restarts, or unexpected termination events on hosts running Quick TFTP Server Pro.
• Watch for outbound connections or child processes spawned by the TFTP service that are inconsistent with normal file-transfer behavior.
• Use network IDS signatures for TFTP mode-field overflow patterns against the service port.

This assessment is produced automatically and is not human-reviewed. Verify against the vendor advisory before acting on it.