CVE-2026-85428

Exploitation

Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.

SSVC decision

Not assessed by CISA

EPSS probability

0.55% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 43.9% of scored records. A rank, not a probability.

NVD base score

9.3 (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:H/VI:H/VA:H/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

Received. NVD last modified this record on 2026-09-03.

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

2026-09-03 22:38Z1 DAY AGO

Last updated

2026-09-03 22:38Z1 DAY AGO

Reserved

2026-09-03

Assigning CNA

VulnCheck

Record state

PUBLISHED

Severity

Critical (CVSS 9.3)

CNA CVSS vector

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

Weaknesses

• CWE-306Missing Authentication for Critical FunctionBase

Data version

5.2

Document digest

39d149b48d05615e9793f0dd298c6fbb38592cda55d2d24d3c7fb28f7bcb20d6

• github.comPull Request #77https://github.com/themoos/core-moos/pull/77issue-trackingpatch
• github.comProposed fix commit (pull request not merged)https://github.com/themoos/core-moos/commit/7e3aecdbf5fe47980ea9399340c77940991a6fa5patch
• github.comhttps://github.com/themoos/core-moosproduct
• github.comHTTPConnection.cpp (verified sink)https://github.com/themoos/core-moos/blob/ec9c77c68fcbdef8f5e4c60fe243acd223433f0c/Core/libMOOS/DB/HTTPConnection.cpp#L196technical-description
• www.vulncheck.comVulnCheck Advisory: MOOS core-moos through 10.4.0 MOOSDB HTTP Server Unauthenticated Variable Writehttps://www.vulncheck.com/advisories/moos-core-moos-through-10.4.0-moosdb-http-server-unauthenticated-variable-writethird-party-advisory