CVE-2026-5214
Status: AnalyzedHigh (7.4)—
A vulnerability was found in D-Link DNS-120, DNR-202L, DNS-315L, DNS-320, DNS-320L, DNS-320LW, DNS-321, DNR-322L, DNS-323, DNS-325, DNS-326, DNS-327L, DNR-326, DNS-340L, DNS-343, DNS-345, DNS-726-4, DNS-1100-4, DNS-1200-05 and DNS-1550-04 up to 20260205. Impacted is the function cgi_addgroup_get_group_quota_minsize of the file /cgi-bin/account_mgr.cgi. The manipulation of the argument Name results in stack-based buffer overflow. The attack may be performed from remote. The exploit has been made public and could be used.
CVSS
- Version: 4.0
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/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:X
- Base score: 7.4
Exploitation probability (EPSS)
- Probability of exploitation in the next 30 days: 1.17%
- Percentile among all scored CVEs: 66
- Score date: 10/4/2026
EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).
🎯 ATT&CK techniques
How this vulnerability is exploited and what the attacker gains, in MITRE ATT&CK terms.
- Exploitation
T1210Exploitation of Remote Serviceslateral movement85 % - Primary impact
T1059Command and Scripting Interpreterexecution75 % - Secondary impact
T1068Exploitation for Privilege Escalationprivilege escalation70 %
AV:N/PR:L indica acceso remoto con privilegios (T1210). Stack buffer overflow en CGI puede permitir ejecución de código (T1059) y potencialmente escalar privilegios en el dispositivo (T1068).
Inferred by our analysis agent from the official description, CVSS vector and CWE, and checked by a supervisor. May contain errors.
🛡️ ATT&CK mitigations that cover these techniques
Affected technologies (20)
Dlink — Dnr-202l FirmwareDlink — Dnr-326 FirmwareDlink — Dns-1100-4 FirmwareDlink — Dns-1200-05 FirmwareDlink — Dns-120 FirmwareDlink — Dns-1550-04 FirmwareDlink — Dns-315l FirmwareDlink — Dns-320 FirmwareDlink — Dns-320l FirmwareDlink — Dns-320lw FirmwareDlink — Dns-321 FirmwareDlink — Dns-322l FirmwareDlink — Dns-323 FirmwareDlink — Dns-325 FirmwareDlink — Dns-326 FirmwareDlink — Dns-327l FirmwareDlink — Dns-340l FirmwareDlink — Dns-343 FirmwareDlink — Dns-345 FirmwareDlink — Dns-726-4 Firmware
CWEs
- CWE-119, CWE-121
- CWE-787
References
Raw JSON (NVD)
Show
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