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CVE-2026-63248

Medium6.9

In Eclipse Milo versions 0.6.0 through 1.1.4, OPC UA server diagnostics nodes do not enforce access authorization. An anonymous client can enable diagnostics over a None/None endpoint without a certificate; with a trusted client application certificate over SignAndEncrypt, it can read security diagnostics for other active sessions, exposing usernames, login history, authentication mechanisms, security modes and policies, and public client certificates.

CVSS
6.9v4.0
EPSS (exploit probability)
0.3%17th pct
CISA KEV
Not listed

EPSS trendFIRST daily scores, last 90 days

FIRST EPSS rose from 0.2% on 2026-09-18 to 0.3% on 2026-10-20, ranging 0.2%–0.3% across 31 daily scores.
2026-09-18 → 2026-10-20 · 31 days · 0.2%–0.3%
Daily values
FIRST EPSS daily scores for this CVE
Score dateEPSSPercentile
2026-10-200.3%16.7%
2026-10-190.3%16.6%
2026-10-180.3%16.5%
2026-10-160.3%16.5%
2026-10-150.3%16.5%
2026-10-140.3%16.5%
2026-10-130.3%16.4%
2026-10-120.3%16.4%
2026-10-110.3%16.3%
2026-10-100.3%16.3%
2026-10-090.3%16.3%
2026-10-080.3%16.3%
2026-10-070.3%16.2%
2026-10-060.3%16.2%
2026-10-050.3%16.1%
2026-10-040.3%16.1%
2026-10-030.3%16.1%
2026-10-020.3%16.1%
2026-10-010.3%16.0%
2026-09-300.3%16.0%
2026-09-290.3%15.9%
2026-09-270.3%15.9%
2026-09-260.3%15.9%
2026-09-250.3%15.8%
2026-09-240.3%15.7%
2026-09-230.2%5.1%
2026-09-220.2%5.1%
2026-09-210.2%5.1%
2026-09-200.2%5.1%
2026-09-190.2%5.1%
2026-09-180.2%5.1%

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/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

Affected products

  • eclipse milo

Coverage1 article

References

Facts sourced from NVD, FIRST EPSS, and CISA KEV. Last synced 2026-10-21 08:34 UTC.

  • CVSS & description: NVD 2.0, fetched 2026-10-21 05:34 UTC
  • EPSS: FIRST EPSS, fetched 2026-10-21 08:34 UTC; score date 2026-10-20
  • KEV: CISA KEV, fetched 2026-10-21 08:34 UTC
CVE-2026-63248 | SecurityTabs