CVE-2026-5983: Buffer Overflow in D-Link DIR-605L
CVE-2026-5983 is a high-severity buffer overflow vulnerability in the D-Link DIR-605L router version 2. 13B01. The flaw exists in the formSetDDNS function of the POST request handler, where manipulation of the curTime argument can trigger the overflow. This vulnerability can be exploited remotely without user interaction. The affected product is no longer supported by the vendor, and no official patch or remediation is available. The exploit has been publicly disclosed but is not known to be actively exploited in the wild.
AI Analysis
Technical Summary
This vulnerability affects the D-Link DIR-605L router firmware version 2.13B01. The issue lies in the formSetDDNS function within the POST request handler, specifically in handling the curTime argument. Improper input validation allows a remote attacker to cause a buffer overflow, potentially leading to arbitrary code execution or denial of service. The vulnerability has a CVSS 4.0 score of 8.7, indicating high severity. The product is no longer maintained by D-Link, and no official fix or patch has been released.
Potential Impact
Successful exploitation of this vulnerability could allow a remote attacker to execute arbitrary code or cause a denial of service on the affected device. Given the high CVSS score and the nature of buffer overflow vulnerabilities, this could compromise the router's integrity and availability. Since the product is no longer supported, affected devices remain vulnerable without vendor-provided remediation.
Mitigation Recommendations
No official patch or remediation is available as the affected product is no longer supported by D-Link. Users should consider replacing the affected device with a supported model to mitigate the risk. Network-level protections such as firewall rules restricting access to the device's management interface from untrusted networks may reduce exposure.
CVE-2026-5983: Buffer Overflow in D-Link DIR-605L
Description
CVE-2026-5983 is a high-severity buffer overflow vulnerability in the D-Link DIR-605L router version 2. 13B01. The flaw exists in the formSetDDNS function of the POST request handler, where manipulation of the curTime argument can trigger the overflow. This vulnerability can be exploited remotely without user interaction. The affected product is no longer supported by the vendor, and no official patch or remediation is available. The exploit has been publicly disclosed but is not known to be actively exploited in the wild.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability affects the D-Link DIR-605L router firmware version 2.13B01. The issue lies in the formSetDDNS function within the POST request handler, specifically in handling the curTime argument. Improper input validation allows a remote attacker to cause a buffer overflow, potentially leading to arbitrary code execution or denial of service. The vulnerability has a CVSS 4.0 score of 8.7, indicating high severity. The product is no longer maintained by D-Link, and no official fix or patch has been released.
Potential Impact
Successful exploitation of this vulnerability could allow a remote attacker to execute arbitrary code or cause a denial of service on the affected device. Given the high CVSS score and the nature of buffer overflow vulnerabilities, this could compromise the router's integrity and availability. Since the product is no longer supported, affected devices remain vulnerable without vendor-provided remediation.
Mitigation Recommendations
No official patch or remediation is available as the affected product is no longer supported by D-Link. Users should consider replacing the affected device with a supported model to mitigate the risk. Network-level protections such as firewall rules restricting access to the device's management interface from untrusted networks may reduce exposure.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulDB
- Date Reserved
- 2026-04-09T12:18:30.613Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 69d822bf1cc7ad14da2ad179
Added to database: 4/9/2026, 10:05:51 PM
Last enriched: 4/9/2026, 10:20:44 PM
Last updated: 4/9/2026, 11:06:26 PM
Views: 3
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