CVE-2026-18810

Exploitation

Public exploit code exists. CISA's assessment records a public proof of concept. That is not a report of exploitation in the wild.

SSVC decision

• ExploitationpocPublic proof-of-concept exploit code exists. Not a report of exploitation in the wild.
• AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
• 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

0.65% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 50.7% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/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 2026-08-12.

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

2026-08-04 20:00Z2 MO AGO

Last updated

2026-08-05 14:47Z2 MO AGO

Reserved

2026-08-04

Assigning CNA

VulDB

Record state

PUBLISHED

Severity

Medium (CVSS 6.9)

CNA CVSS vector

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

Weaknesses

• CWE-287Improper AuthenticationClass
• CWE-306Missing Authentication for Critical FunctionBase

Data version

5.2

Document digest

73c2d4a31cde08670487e93b4dd81ab554193dac541a6d713b66bc22204e6cce

• vuldb.comVDB-385809 | H3C NX15 networkSetup missing authenticationhttps://vuldb.com/vuln/385809vdb-entry
• vuldb.comVDB-385809 | CTI Indicators (IOB, IOC, IOA)https://vuldb.com/vuln/385809/ctisignaturepermissions-required
• vuldb.comCVE-2026-18810 | CVE Analysis and Reporthttps://vuldb.com/cve/CVE-2026-18810third-party-advisory
• vuldb.comSubmit #857805 | H3C NX15 Router V100R017 Improper Authenticationhttps://vuldb.com/submit/857805third-party-advisory
• github.comhttps://github.com/coconut652-7/IOT_Vul_Public/tree/main/H3C/NX15R017/api_wizard_networksetup_preauth_hijackrelated