CVE Explorer
CVE-2025-66266
The RupsMon.exe service executable in UPSilon 2000 has insecure permissions, allowing the 'Everyone' group Full Control. A local attacker can replace the executable with a malicious binary to execute code with SYSTEM privileges or simply change the config path of the service to a command; starting and stopping the service to immediately achieve code execution and privilege escalation
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0
Affected products and versions
1 source assertion{"defaultStatus":"unaffected","product":"UPSilon2000V6.0","vendor":"MegaTec Taiwan","versions":[{"status":"affected","version":"6.0.5"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:fff0b2edb12ebdcb8fe0dabbd4017cabf01303960c5ce663ecb666449b8721a1 · sha256:efc20949c8d900f1… · /containers/cna/affected/0
Provider-owned CVSS observations
1 source assertion{"metric":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"LOCAL","baseScore":9.3,"baseSeverity":"CRITICAL","exploitMaturity":"NOT_DEFINED","privilegesRequired":"NONE","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"NONE","subConfidentialityImpact":"HIGH","subIntegrityImpact":"HIGH","userInteraction":"NONE","valueDensity":"NOT_DEFINED","vectorString":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact"…
- cve_program_cvelist_v5cvssurn:baitaphish:normalized-source-record:v2:fff0b2edb12ebdcb8fe0dabbd4017cabf01303960c5ce663ecb666449b8721a1 · sha256:efc20949c8d900f1… · /containers/cna/metrics/0/cvssV4_0
CWE assertions
1 source assertion{"cweId":"CWE-269","description":"CWE-269 Improper Privilege Management","lang":"en","type":"CWE"}
- cve_program_cvelist_v5cweurn:baitaphish:normalized-source-record:v2:fff0b2edb12ebdcb8fe0dabbd4017cabf01303960c5ce663ecb666449b8721a1 · sha256:efc20949c8d900f1… · /containers/cna/problemTypes/0/descriptions/0
Source references
1 source assertion{"url":"https://www.megatec.com.tw/software-download/"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:fff0b2edb12ebdcb8fe0dabbd4017cabf01303960c5ce663ecb666449b8721a1 · sha256:efc20949c8d900f1… · /containers/cna/references/0
Attribution and limitations
- CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →
Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.