{"description":"Trending threats, MITRE ATT\u0026CK coverage, and detection metadata. Fed continuously.","favicon":"https://feed.craftedsignal.io/favicon-32x32.png","feed_url":"https://feed.craftedsignal.io/products/dir-822a-a_101/feed.json","home_page_url":"https://feed.craftedsignal.io/","icon":"https://feed.craftedsignal.io/apple-touch-icon.png","items":[{"_cs_actors":[],"_cs_cpes":["cpe:2.3:h:dlink:dir-822a:a_101:*:*:*:*:*:*:*"],"_cs_cves":[{"cvss":10,"id":"CVE-2026-86296"}],"_cs_exploited":false,"_cs_has_poc":false,"_cs_poc_references":[],"_cs_products":["DIR-822A (A_101)"],"_cs_severities":["critical"],"_cs_tags":["vulnerability","cve","network-security"],"_cs_type":"advisory","_cs_vendors":["D-Link"],"content_html":"\u003cp\u003eA critical stack-based buffer overflow vulnerability (CVE-2026-86296) exists in the udhcpcd component of the D-Link DIR-822A router, specifically within the strcpy function found in serverpacket.c. This flaw allows an unauthenticated remote attacker to send maliciously crafted network packets to the vulnerable service. By exceeding the allocated buffer size, an attacker can overwrite adjacent memory on the stack, potentially leading to arbitrary code execution or a denial of service condition. The vulnerability has been publicly disclosed, and exploit code is available, increasing the risk of widespread exploitation. Given the router's role in network edge security, successful exploitation allows an attacker to gain full control over the gateway device, facilitating further lateral movement or traffic interception within the target network.\u003c/p\u003e\n\u003ch2 id=\"impact\"\u003eImpact\u003c/h2\u003e\n\u003cp\u003eThe vulnerability carries a CVSS v3.1 base score of 10.0, indicating the highest level of severity. Successfull exploitation leads to full device compromise, enabling attackers to execute commands with root privileges. This poses a significant threat to residential and small office network environments where the DIR-822A is deployed. If exploited, attackers can exfiltrate sensitive data, intercept unencrypted traffic, or use the device as a pivot point for internal network reconnaissance and attacks.\u003c/p\u003e\n\u003ch2 id=\"recommendation\"\u003eRecommendation\u003c/h2\u003e\n\u003cp\u003ePrioritize the decommissioning or replacement of D-Link DIR-822A hardware, as this model has reached critical status regarding vulnerability management. Monitor edge network traffic for anomalous DHCP traffic patterns or abnormal outbound connections originating from network infrastructure devices, as this may indicate an attempt to exploit CVE-2026-86296. Ensure all network gateway devices are segmented from critical internal assets and that management interfaces are restricted to trusted administrative subnets.\u003c/p\u003e\n","date_modified":"2026-09-07T12:52:41Z","date_published":"2026-09-07T12:52:41Z","id":"https://feed.craftedsignal.io/briefs/2026-09-dlink-buffer-overflow/","summary":"A stack-based buffer overflow vulnerability in the udhcpcd component of D-Link DIR-822A routers allows unauthenticated remote attackers to execute arbitrary code.","title":"Remote Stack-Based Buffer Overflow in D-Link DIR-822A","url":"https://feed.craftedsignal.io/briefs/2026-09-dlink-buffer-overflow/"}],"language":"en","title":"CraftedSignal Threat Feed - DIR-822A (A_101)","version":"https://jsonfeed.org/version/1.1"}