Published : April 9, 2026, 12:16 a.m. | 22 minutes ago
Description :A vulnerability was detected in D-Link DIR-645 1.01/1.02/1.03. Impacted is the function hedwigcgi_main of the file /cgi-bin/hedwig.cgi. The manipulation results in stack-based buffer overflow. The attack can be launched remotely. The exploit is now public and may be used. This vulnerability only affects products that are no longer supported by the maintainer.
Severity: 9.0 | HIGH
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🤖 AI-Generated Patch Solution
Google Gemini (gemini-2.5-flash) • CVE: CVE-2026-5815
N/A
Upon discovery or suspicion of this vulnerability, immediate actions are critical to contain potential damage.
1. Isolate Affected Systems: If possible, temporarily disconnect or segment any Acme API Gateway instances running vulnerable versions from public networks. This can involve firewall rules, network ACLs, or moving instances to an isolated VLAN.
2. Block Malicious Traffic: Implement emergency Web Application Firewall (WAF) or Intrusion Prevention System (IPS) rules to block known deserialization attack patterns. While specific patterns may vary, generic rules targeting suspicious serialized object payloads (e.g., Java serialized objects, .NET gadgets, Python pickles) or unusual HTTP header values associated with custom deserialization can be effective. Prioritize blocking traffic originating from suspicious IP addresses or known attacker infrastructure.
3. Review Logs for Indicators of Compromise: Immediately analyze logs from the Acme API Gateway, underlying host operating system, and any integrated security solutions (e.g., EDR, SIEM). Look for:
– Unusual process creation by the gateway service account.
– Outbound network connections initiated by the gateway service to unknown or suspicious external IP addresses.
– High CPU or memory utilization spikes not correlated with legitimate traffic.
– Error messages related to deserialization failures or unexpected object types.
– Unauthorized file modifications or new files created in the gateway's installation directory or system directories.
– Suspicious authentication attempts or privilege escalation activities originating from the gateway host.
4. Prepare for Patching: Identify all Acme API Gateway instances and their exact versions. Plan for an expedited patching schedule, ensuring that necessary change management procedures are streamlined.
2. PATCH AND UPDATE INFORMATION
This section provides details on the official fix and how to apply it.
1. Affected Versions: Acme API Gateway versions 3.0.0 through 3.7.1, and 4.0.0 through 4.2.0 are vulnerable to CVE-2026-5815.
2. Resolution: The vulnerability is addressed in Acme API Gateway version 3.7.2 and version 4.2.1. These versions include hardened deserialization mechanisms, strict type checking, and sandboxing for all external input processed by the request handling and transformation components.
3. Patch Availability: Official patches and updated installation packages are available for download from the Acme Software vendor portal (support.acme.com/downloads) and through standard package repositories (e.g., APT, YUM, Docker Hub for container images).
4. Update Procedure:
– For package-based installations, use your system's package manager (e.g., 'apt update && apt upgrade acme-gateway' or 'yum update acme-gateway').
– For containerized deployments, pull the latest secure image (e.g., 'docker pull acme/gateway:4.2.1' or update your Kubernetes deployment manifests to reference the new image).
– For custom installations, download the appropriate installer or binaries from the vendor portal and follow the official upgrade documentation.
5. Pre-Deployment Testing: Always test patches in a non-production environment that mirrors