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CVE-2026-96655

Medium5.3CISA KEV — exploited in the wild

Plex Media Server before 1.43.3.10861 allows an authenticated user to request arbitrary internal or external addresses via the '/video/:/transcode/universal' path parameter.

CVSS
5.3v4.0
EPSS (exploit probability)
0.2%12th pct
CISA KEV
Listed

EPSS trendFIRST daily scores, last 90 days

FIRST EPSS held steady from 0.2% on 2026-09-24 to 0.2% on 2026-10-20, ranging 0.2%–0.2% across 25 daily scores.
2026-09-24 → 2026-10-20 · 25 days · 0.2%–0.2%
Daily values
FIRST EPSS daily scores for this CVE
Score dateEPSSPercentile
2026-10-200.2%12.0%
2026-10-190.2%12.0%
2026-10-180.2%11.8%
2026-10-160.2%11.9%
2026-10-150.2%11.8%
2026-10-140.2%11.8%
2026-10-130.2%11.8%
2026-10-120.2%11.7%
2026-10-110.2%11.7%
2026-10-100.2%11.7%
2026-10-090.2%11.7%
2026-10-080.2%11.7%
2026-10-070.2%11.7%
2026-10-060.2%11.7%
2026-10-050.2%11.6%
2026-10-040.2%11.6%
2026-10-030.2%11.6%
2026-10-020.2%11.6%
2026-10-010.2%11.5%
2026-09-300.2%11.5%
2026-09-290.2%8.8%
2026-09-270.2%8.8%
2026-09-260.2%8.8%
2026-09-250.2%8.7%
2026-09-240.2%8.7%

CISA KEV entrycatalogue 2026.10.20

Date added
2026-10-20
Federal due date
2026-11-03
Known ransomware use
Unknown

Required action

Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.

Verbatim from the CISA KEV catalogue (CISA KEV, fetched 2026-10-21 07:34 UTC). The due date applies to US federal agencies under BOD 22-01.

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

  • plex media server

Coverage1 article

References

Facts sourced from NVD, FIRST EPSS, and CISA KEV. Last synced 2026-10-21 07:34 UTC.

  • CVSS & description: NVD 2.0, fetched 2026-10-21 06:34 UTC
  • EPSS: FIRST EPSS, fetched 2026-10-21 07:34 UTC; score date 2026-10-20
  • KEV: CISA KEV, fetched 2026-10-21 07:34 UTC