VulnerabilityDeferred

CVE-2026-86296

A vulnerability was determined in D-Link DIR-822A A_101.

CRITICAL 9.3EPSS 1.35%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (1.35%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

A vulnerability was determined in D-Link DIR-822A A_101. This vulnerability affects the function strcpy of the file udhcpcd/serverpacket.c of the component udhcpcd. This manipulation causes stack-based buffer overflow. The attack is possible to be carried out remotely. The exploit has been publicly disclosed and may be utilized.

CVSS 4.0: 9.3 CRITICALCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M
EPSS: 1.35% probability · 70th percentile
CISA KEV: Not listed
Weakness: CWE-119, CWE-121
Source: cna@vuldb.com

References

https://tzh00203.notion.site/D-Link-DIR-822A-Stack-Overflow-in-udhcpd-TR-111-Option-125-Parsing-33cb5c52018a80238b80e89e7c7c68f0
https://vuldb.com/cve/CVE-2026-86296
https://vuldb.com/submit/906297
https://vuldb.com/vuln/399458
https://vuldb.com/vuln/399458/cti
https://www.dlink.com/

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.