CVE-2025-8938

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

0.32% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 24.4% of scored records. A rank, not a probability.

NVD base score

2.1 (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:L/VI:L/VA:L/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

2025-08-14 05:02Z1 YR AGO

Last updated

2025-08-15 12:58Z1 YR AGO

Reserved

2025-08-13

Assigning CNA

VulDB

Record state

PUBLISHED

Severity

Medium (CVSS 5.3)

CNA CVSS vector

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

Weaknesses

• CWE-912Hidden FunctionalityClass

Data version

5.1

Document digest

39dac2015614ede6527028194a2ee1993ce395d9f96b476e86dd8f840b1513be

• vuldb.comVDB-319901 | TOTOLINK N350R Telnet Service formSysTel backdoorhttps://vuldb.com/?id.319901vdb-entrytechnical-description
• vuldb.comVDB-319901 | CTI Indicators (IOB, IOC, TTP, IOA)https://vuldb.com/?ctiid.319901signaturepermissions-required
• vuldb.comSubmit #631837 | TOOLINK N350R V1.2.3-B20130826 Backdoorhttps://vuldb.com/?submit.631837third-party-advisory
• github.comhttps://github.com/rew1X/CVE/blob/main/TOTOLINK/formSysTel/formSysTel.mdrelated
• github.comhttps://github.com/rew1X/CVE/blob/main/TOTOLINK/formSysTel/formSysTel.md#pocexploit
• www.totolink.nethttps://www.totolink.net/product