CVE-2026-24109 | An issue was discovered in Tenda W20E V4.0br_V15.11.0.6. Att… | CVSS 9.8 CRITICAL

Description

An issue was discovered in Tenda W20E V4.0br_V15.11.0.6. Attackers may exploit the vulnerability by controlling the value of `picName`. When this value is used in `sprintf` without validating variable sizes, it could lead to a buffer overflow vulnerability.

Metadata

CVE ID: CVE-2026-24109
State: PUBLISHED
Assigner: mitre
Reserved: 2026-01-21 00:00 UTC
Published: 2026-03-02 00:00 UTC
Last updated: 2026-03-05 15:52 UTC
Primary CWE: CWE-120
CWE-120 Buffer Copy without Checking Size of Input ('Classic…
Vendor / Product: n/a / n/a
Sources: cve.org · NVD

Severity & Metrics

9.8 CRITICAL CVSS 3.1

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

SSVC — CISA Coordinator

Exploitation: PoC
Automatable: yes
Tech. Impact: total

Affected products (1)

Vendor	Product	Platform	Versions
n/a	n/a	—	n/a

Weakness (CWE)

CWE	Source	Description
—	cna	n/a
CWE-120	adp	CWE-120 Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

CVSS scores (1)

Score	Severity	Version	Source	Vector
9.8	CRITICAL	3.1	adp	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References (2)