CVE-2026-96656

Exploitation

Exploited in the wild. Listed in the CISA Known Exploited Vulnerabilities catalog on 2026-10-20. Federal remediation due 2026-10-23.

SSVC decision

• ExploitationactiveCISA reports credible evidence of active 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

0.76% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 54.7% of scored records. A rank, not a probability.

NVD base score

8.6 (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: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

NVD analysis status

Analyzed. NVD last modified this record on 2026-10-21.

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

2026-09-23 16:07Z28 DAYS AGO

Last updated

2026-10-21 03:56Z18 HR AGO

Reserved

2026-09-23

Assigning CNA

cisa-cg

Record state

PUBLISHED

Severity

High (CVSS 8.6)

CNA CVSS vector

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

Weaknesses

• CWE-73External Control of File Name or PathBase

Data version

5.2

Document digest

88838c4d4349d59bf50d9a490dd09d58a64192c8d55f63b5ea7f15224cf0cd63

• forums.plex.tvurlhttps://forums.plex.tv/t/plex-media-server/30447/711release-notes
• www.cve.orgurlhttps://www.cve.org/CVERecord?id=CVE-2026-96656vdb-entry
• raw.githubusercontent.comurlhttps://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/IT/white/2026/va-26-266-01.jsonthird-party-advisory
• zmain.infourlhttps://zmain.info/blog/plex2shellthird-party-advisory
• www.boredhackerblog.infohttps://www.boredhackerblog.info/2026/10/plex-vulnerabilities-being-exploited-in.htmlthird-party-advisory
• www.cisa.govhttps://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-96656government-resource