CVE-2026-4492

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

• ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
• AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
• Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.64% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 48.2% of scored records. A rank, not a probability.

NVD base score

7.4 (CVSS v4.0), scored by the NVD independently of the CNA.

NVD CVSS 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

NVD analysis status

Deferred. NVD last modified this record on 2026-06-17.

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2026-03-20 17:02Z5 MO AGO

Last updated

2026-03-20 18:06Z5 MO AGO

Reserved

2026-03-20

Assigning CNA

VulDB

Record state

PUBLISHED

Severity

High (CVSS 8.7)

CNA CVSS 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

Weaknesses

• CWE-119Improper Restriction of Operations within the Bounds of a Memory BufferClass
• CWE-121Stack-based Buffer OverflowVariant

Data version

5.2

Document digest

e6a37d1ef911f48ac7332f5f7379746cf753a2b0393cd2e6d1aa88a09c2ff2d1

• vuldb.comVDB-352018 | Tenda A18 Pro formSetQosBand set_qosMib_list stack-based overflowhttps://vuldb.com/?id.352018vdb-entrytechnical-description
• vuldb.comVDB-352018 | CTI Indicators (IOB, IOC, IOA)https://vuldb.com/?ctiid.352018signaturepermissions-required
• vuldb.comSubmit #773682 | Tenda A18pro V02.03.02.28 Stack-based Buffer Overflowhttps://vuldb.com/?submit.773682third-party-advisory
• github.comhttps://github.com/lilukun337/cve/issues/4exploitissue-tracking
• www.tenda.com.cnhttps://www.tenda.com.cn/product