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CVE-2025-1207: Low Vulnerability in phjounin TFTPD64

A low-severity denial of service vulnerability exists in phjounin TFTPD64 4.64. It requires local network access and has a high attack complexity. Organizations should assess risk and patch when feasible.

LOWCVSS 2.3 · Published February 12, 2025

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A vulnerability was found in phjounin TFTPD64 4.64. It has been declared as problematic. This vulnerability affects unknown code of the component DNS Handler. The manipulation leads to denial of service. The attack needs to be done within the local network. The complexity of an attack is rather high. The exploitation appears to be difficult. The exploit has been disclosed to the public and may be used.

With a CVSS score of 2.3, this vulnerability is classified as low severity. This means that, while it may not pose an immediate threat, it is essential for organizations to remain vigilant. The risk to organizations includes potential service disruptions if exploited, particularly in environments where TFTPD64 is utilized.

Given its status as deferred, organizations should still consider patching this vulnerability in their upcoming maintenance cycles to mitigate risks associated with denial of service attacks.

Organizations should prioritize patching immediately and ensure that proper security measures are in place to monitor network traffic for any malicious activity related to this vulnerability.

Vulnerability Details

A vulnerability was found in phjounin TFTPD64 4.64. It has been declared as problematic. This vulnerability affects unknown code of the component DNS Handler. The manipulation leads to denial of service. The attack needs to be done within the local network. The complexity of an attack is rather high. The exploitation appears to be difficult. The exploit has been disclosed to the public and may be used.

The CVSS score for this vulnerability is 2.3, reflecting a low severity level. The attack vector is classified as adjacent with a high attack complexity, indicating that attackers would require specific conditions to successfully exploit this vulnerability.

This vulnerability has been classified under CWE-404. The manipulation leads to denial of service, impacting the availability of services relying on the DNS Handler component.

Technical Analysis

The root cause of this vulnerability stems from inadequate input validation within the DNS Handler component. Attackers may leverage this flaw to induce a denial of service condition.

The attack vector is local, meaning the attacker must have access to the local network. The complexity of the attack is considered high, which may deter many would-be attackers. No privileges are required, and user interaction is not necessary to exploit this vulnerability.

In terms of impact, the confidentiality and integrity of the system remain unaffected, while the availability impact is low, indicating that successful exploitation may lead to some service disruption but not complete unavailability.

Risk & Impact Analysis

Risk to organizations includes potential service disruptions within local networks where phjounin TFTPD64 is utilized. Given the low severity score, the urgency to address this vulnerability is moderate. Organizations should schedule remediation within their patch management processes.

The denial of service impact may affect critical services, particularly in environments where uptime is essential. Thus, while the vulnerability is low in severity, its impact could be significant depending on the deployment context.

Exploitation Status

Signal

Status

Known Exploit

No

Public PoC

No

Actively Exploited

No

Ransomware Use

No

Affected Versions

All versions prior to vendor patch are affected. Organizations should check for updates or patches related to phjounin TFTPD64.

Mitigation & Remediation

Organizations should prioritize patching immediately. If no patch is available, consider implementing network controls to limit access to the affected service and monitor for unusual traffic patterns.

For further assistance, organizations can utilize penetration testing services to identify additional vulnerabilities.

Detection Guidance

To detect potential exploitation attempts, organizations should monitor logs for unusual DNS traffic patterns, particularly from local network sources. Behavioral anomalies in service availability should also be tracked.

AppSecure Threat Intelligence Insight

The long-term significance of CVE-2025-1207 lies in its demonstration of how high complexity can still lead to vulnerabilities that may be exploited in localized environments. This trend highlights the need for continuous monitoring and assessment of software components, even those perceived as low-risk.

Security teams must adopt a proactive approach by utilizing resources such as vulnerability management programs and conducting regular security assessments to identify and fix weaknesses before they can be exploited.

For a comprehensive understanding of vulnerability management, organizations can refer to our detailed penetration testing methodology guide to enhance their security posture.

Additionally, leveraging services such as API penetration testing can further secure applications against emerging threats.

Disclaimer: This content was generated using AI. While we strive for accuracy, please verify critical information with official sources.

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