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CVE-2025-43873

iSTAR Ultra, Ultra SE, Ultra G2, Ultra G2 SE, iSTAR Edge G2 - Authenticated web application command injection - setFaultDebounce

High8.7EPSS 0.29%
Published
Updated
Reserved
Assigned by
jci

Description

Successful exploitation of these vulnerabilities could allow an attacker to modify firmware and gain full access to the device.

Scores

CVSS scores of CVE-2025-43873, by who scored it
Scored byCVSSScoreVector
jciCNA (assigner)4.0High8.7CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
NVDNVD · Deferred4.0High8.7CVSS:4.0/AV:N/AC:L/AT:N/PR:L/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
EPSS (exploitation in 30 days)
0.29% · top 78% of all CVEs (7 Nov 2026)
CISA SSVC
Exploitation: none · Automatable: yes · Technical impact: total
Loading the EPSS history…

The list uses the assigner's score when there is one, then CISA's, then NVD's: High 8.7.

Weakness

Affected products

What to do

Solution: * Upgrade iSTAR Ultra, iSTAR Ultra SE, iStar Ultra LT to version 6.9.7.CU01 or greater. * Upgrade iSTAR Ultra G2, iSTAR Ultra G2 SE, iSTAR Edge G2 to version 6.9.3 or greater.

References (2)

Sources

The same CVE in the primary databases and aggregators, to check against.

Badge for a README or a ticket

CVE-2025-43873 badge
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Record last updated .