CVE-2026-82539

criticalpriority · attend · 46EPSS 0.008 · 58 %ileexploit · PoCRU

grimoire priorityP1 · Urgent

Exploitable?

Public exploit

1 exploit · PoC

Likely / severe?

0.83% (58th) EPSS

CVSS 9.1 · critical

Is it mine?

1 products

Check your exposure

Who says so?

1 sources

fstec_bdu

EPSS · scored 2026-10-28

A vulnerability was determined in TOTOLINK A720R 4.1.5cu.630_B20250509. This impacts the function setMacFilterRules of the file cstecgi.cgi of the component MAC Filtering. Executing a manipulation of the argument desc can lead to memory corruption. The attack may be launched remotely. The exploit has been publicly disclosed and may be utilized.

cvss

Technical severity, 0–10. One row per scoring source.

9.1

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · high–critical · 8.3–9.1

v3.19.1criticalCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:Hprimary · cna@vuldb.comexploitability 2.3 · impact 6

v2.08.3highAV:N/AC:L/Au:M/C:C/I:C/A:Csecondary · cna@vuldb.comexploitability 6.4 · impact 10

v3.19.1criticalAV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:Hsecondary · FSTEC (BDU) RU

v4.08.5highCVSS:4.0/AV:N/AC:L/AT:N/PR:H/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/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:Xsecondary · cna@vuldb.com