CVE-2026-6143

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.
• 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

0.19% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 8.8% 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

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

2026-04-13 01:15Z4 MO AGO

Last updated

2026-04-13 11:59Z4 MO AGO

Reserved

2026-04-12

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-346Origin Validation ErrorClass
• CWE-942Permissive Cross-domain Security Policy with Untrusted DomainsVariant

Data version

5.2

Document digest

5f092eecdad74db67b308b69dd9be03c45d96916f4dd97906b2b5322fed794de

• vuldb.comVDB-357007 | farion1231 cc-switch ProxyServer server.rs cross-domain policyhttps://vuldb.com/vuln/357007vdb-entry
• vuldb.comVDB-357007 | CTI Indicators (IOB, IOC, IOA)https://vuldb.com/vuln/357007/ctisignaturepermissions-required
• vuldb.comSubmit #796145 | github.com/farion1231 cc-switch v3.12.3 Origin Validation Errorhttps://vuldb.com/submit/796145third-party-advisory
• github.comhttps://github.com/farion1231/cc-switch/issues/1841issue-tracking
• github.comhttps://github.com/farion1231/cc-switch/pull/1915issue-trackingpatch
• github.comhttps://github.com/farion1231/cc-switch/issues/1841#issue-4191294952exploitissue-tracking
• github.comhttps://github.com/farion1231/cc-switch/product