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CVSS 7.2 · HIGH

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 remote. The exploit has been published and may be used.

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Analysis

This vulnerability involves a buffer overflow in the web interface of the Totolink N300RT router. As it is vendor-specific firmware for a consumer networking device, it does not impact the software development or server management stacks used by the community.

Severity

Score: 7.2(HIGH)
Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
AV: NETWORK
AC: LOW
PR: HIGH
UI: NONE
S: UNCHANGED
C: HIGH
I: HIGH
A: HIGH
Weakness (CWE): CWE-119CWE-120

EPSS

Probability of exploitation (next 30 days): 0.0009 (0.1%)
Percentile: 25.7%
EPSS: 2026-05-06

Technical description

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 remote. The exploit has been published and may be used.

Published: 4/28/2026, 4:16:23 AM
Last modified: 4/28/2026, 8:24:58 PM

References

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