Loading vulnerability…
CVE-2026-86296 is a stack-based buffer overflow in D-Link DIR-822A firmware A_101. The flaw affects the udhcpcd component's processing of DHCP TR-111 Option 125 data in serverpacket.c, where an unchecked strcpy operation copies attacker-controlled input into a fixed-size stack buffer. An oversized Option 125 value can overwrite stack memory and reportedly enable remote code execution.
Mallory correlates every CVE against your assets, your vendors, and active adversary campaigns. Know which vulnerabilities matter for you, not just which ones are loud.
What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
What an attacker gets, and what they’ve been doing with it.
If you can’t patch tonight, do this now.
Patch, then assume compromise.
No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
12 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A remotely exploitable stack-based buffer overflow in the udhcpcd component of D-Link DIR-822A A_101, affecting strcpy in udhcpcd/serverpacket.c.
A remotely exploitable stack-based buffer overflow in the udhcpcd component of D-Link DIR-822A A_101, affecting strcpy in udhcpcd/serverpacket.c during TR-111 Option 125 parsing. The supplied CVSS vectors indicate network-accessible exploitation without privileges or user interaction and high impact to confidentiality, integrity, and availability.
A critical unauthenticated remote code-execution vulnerability in the udhcpcd component of D-Link DIR-822A firmware A_101. Unsafe strcpy handling in serverpacket.c permits a crafted DHCP TR-111 Option 125 field to overflow a stack buffer and execute code as root.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.