CVE-2017-20211

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

• ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
• AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
• Technical ImpactpartialSuccessful exploitation gives limited 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

0.79% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 55.8% 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:N/UI:A/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

Deferred. NVD last modified this record on 2026-06-17.

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

2025-11-12 22:05Z11 MO AGO

Last updated

2026-07-28 01:46Z3 MO AGO

Reserved

2025-11-12

Assigning CNA

VulnCheck

Record state

PUBLISHED

Severity

High (CVSS 8.6)

CNA CVSS vector

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

Weaknesses

• CWE-823Use of Out-of-range Pointer OffsetBase

Data version

5.2

Document digest

4a9996b750bb2bba93e121e95b3a9854a556babc5a85e0537de8836bf2301644

• www.zerodayinitiative.comhttps://www.zerodayinitiative.com/advisories/ZDI-17-422/technical-description
• www.ucancode.nethttps://www.ucancode.net/product
• www.vulncheck.comhttps://www.vulncheck.com/advisories/ucancode-e-xd-visualization-enterprise-suite-untrusted-pointer-dereference-rcethird-party-advisory