CVE-2026-80156

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 ImpacttotalSuccessful exploitation gives total 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

0.69% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 52.7% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

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

Awaiting Analysis. NVD last modified this record on 2026-09-24.

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

2026-09-22 15:23Z1 MO AGO

Last updated

2026-09-24 19:11Z1 MO AGO

Reserved

2026-08-25

Assigning CNA

VulnCheck

Record state

PUBLISHED

Severity

Critical (CVSS 9.4)

CNA CVSS vector

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

Weaknesses

• CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')Base

Data version

5.2

Document digest

2a4763224b55e4580a8312bc78fcd4e1aec2c9ce251023bc570ac5d0595427ec

• revrb.netResearcher Disclosurehttps://revrb.net/2026/09/21/revrb-lantern.htmltechnical-description
• ts.lantronix.comSLC8000 Firmwarehttps://ts.lantronix.com/ftp/slc8000/9.7.0.5R2/patch
• ts.lantronix.comEMG8500 Firmwarehttps://ts.lantronix.com/ftp/emg/EMG_8500/9.7.0.1R2/patch
• ts.lantronix.comEMG7500 Firmwarehttps://ts.lantronix.com/ftp/emg/EMG_7500/9.7.0.1R2/patch
• ts.lantronix.comSLC9000 Firmwarehttps://ts.lantronix.com/ftp/SLC9000/9.7.0.2R1/patch
• www.vulncheck.comhttps://www.vulncheck.com/advisories/lantronix-autonomous-out-of-band-devices-arbitrary-file-write-via-upload-filename-validation-bypassthird-party-advisory