CVE-2025-9828

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 ImpactpartialSuccessful exploitation gives limited 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

0.34% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 27.1% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/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

Analyzed. 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

2025-09-02 17:02Z1 YR AGO

Last updated

2025-09-02 20:35Z1 YR AGO

Reserved

2025-09-02

Assigning CNA

VulDB

Record state

PUBLISHED

Severity

Medium (CVSS 6.3)

CNA CVSS vector

CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:P

Weaknesses

• CWE-310
• CWE-327Use of a Broken or Risky Cryptographic AlgorithmClass

Data version

5.1

Document digest

ec9ee3304cd0f6c030f828d5e413b79546c802f7f2d3d3f241839a11dc539d9c

• vuldb.comVDB-322175 | Tenda CP6 uhttp sub_2B7D04 risky encryptionhttps://vuldb.com/?id.322175vdb-entrytechnical-description
• vuldb.comVDB-322175 | CTI Indicators (IOB, IOC, TTP, IOA)https://vuldb.com/?ctiid.322175signaturepermissions-required
• vuldb.comSubmit #641566 | Tenda CP6 V11.10.00.243 CWE-327 Use of a Broken or Risky Cryptographic Algorithmhttps://vuldb.com/?submit.641566third-party-advisory
• github.comhttps://github.com/IOTRes/IOT_Firmware_Update/blob/main/Tenda/CP6.mdexploitpatch
• www.tenda.com.cnhttps://www.tenda.com.cn/product