CVE-2026-86510CWE-119CWE-787

CVE-2026-86510

Critical · published September 8, 2026

CVSS v3.1
9.9
EPSS
1%
Percentile
42.7
In the wild
Unconfirmed
What it is

A vulnerability has been found in D-Link DIR-822A A_101. Affected is the function tunnel_set_params of the component L2TP Control Message Parser. Such manipulation leads to out-of-bounds write. The attack can be launched remotely. The exploit has been disclosed to the public and may be used.

The record
Technical detail
CVSS v3.1
9.9 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
CVSS v4.0
9.4 · CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P
EPSS
0.00511 · 42.7th percentile
Weaknesses
CWE-119 · Improper Restriction of Operations within the Bounds of a Memory Buffer; CWE-787 · Out-of-bounds Write
Published
2026-09-08T06:17Z
References (6)
https://vuldb.com/vuln/399663 · [email protected]https://vuldb.com/vuln/399663/cti · [email protected]https://www.dlink.com/ · [email protected]https://tzh00203.notion.site/D-Link-DIR-822A-L2TP-Host-Name-AVP-Out-of-Bounds-Write-33cb5c52018a80a7af5fdc1af3d5aa73 · [email protected]https://vuldb.com/cve/CVE-2026-86510 · [email protected]https://vuldb.com/submit/906300 · [email protected]
EPSS history
Timeline
  • 09 SEP 03:20Z
    EPSS moved — → 0%
    epss
  • 08 SEP 01:15Z
    D-Link DIR-822A L2TP Control Message tunnel_set_params out-of-bounds write
    cvelistv5