What is CVE-2026-7219?

CVE-2026-7219 is a high-severity vulnerability in Totolink N300rt, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 7.2/10. Published 2026-04-28.

How severe is CVE-2026-7219?

High severity. CVSS v3 base score is 7.2 out of 10.

Buffer overflow in Totolink N300rt

CVE-2026-7219

A flaw has been found in Totolink N300RT 3.4.0-B20250430. This affects an unknown function of the file /boafrm/formIpQoS. Executing a manipulation of the argument entry_name can lead to buffer overflow. The attack may be performed from rem…

Vulnerability class: Buffer Overflow

EPSS: 0.001 (27.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.

Affected products

Totolink N300rt — versions 3.4.0-B20250430

Weakness classification (CWE)

References

VDB-359819 | Totolink N300RT formIpQoS buffer overflow (technical-description, vdb-entry)
VDB-359819 | CTI Indicators (IOB, IOC, IOA) (signature, permissions-required)
Submit #808194 | TOTOLINK N300RT Router V3.4.0-B20250430 Buffer Overflow (third-party-advisory)
cna@vuldb.com (exploit)
cna@vuldb.com (product)

Frequently asked questions

What is CVE-2026-7219?: CVE-2026-7219 is a high-severity vulnerability in Totolink N300rt, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 7.2/10. Published 2026-04-28.
How severe is CVE-2026-7219?: High severity. CVSS v3 base score is 7.2 out of 10.