How severe is CVE-2017-20211?

CVE-2017-20211 has a CVSS 4.0 base score of 8.6, rated high severity.

Is CVE-2017-20211 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (47th percentile), an estimate of the probability of exploitation in the next 30 days.

How do I fix CVE-2017-20211?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2017-20211 have an EU (EUVD) identifier?

Yes. CVE-2017-20211 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2017-18927.

When was CVE-2017-20211 published?

CVE-2017-20211 was published on 2025-11-12 and last updated on 2026-06-17.

CVE-2017-20211

CVE-2017-20211 is a high-severity vulnerability with a CVSS 4.0 base score of 8.6. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-823.

Key facts

Severity: High (CVSS 4.0 base score 8.6)
EPSS exploit prediction: 1% (47th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2017-18927
Weakness: CWE-823
Published: 2025-11-12
Last modified: 2026-06-17

Description

UCanCode E-XD++ Visualization Enterprise Suite contains an untrusted pointer dereference vulnerability via the TKDRAWCAD.TKDrawCADCtrl.1 ActiveX control. This is because it exposes a RotateShape method that dereferences a user-supplied pointer without sufficient validation. A crafted input may cause the control to dereference an attacker-controlled pointer, enabling remote code execution in the context of the hosting process. The vulnerability requires user interaction (instantiation of the ActiveX control via a web page or a file).

Frequently asked questions

What is CVE-2017-20211?: UCanCode E-XD++ Visualization Enterprise Suite contains an untrusted pointer dereference vulnerability via the TKDRAWCAD.TKDrawCADCtrl.1 ActiveX control. This is because it exposes a RotateShape method that dereferences a user-supplied pointer without sufficient validation. A crafted input may cause the control to dereference an attacker-controlled pointer, enabling remote code execution in the context of the hosting process. The vulnerability requires user interaction (instantiation of the ActiveX control via a web page or a file).
How severe is CVE-2017-20211?: CVE-2017-20211 has a CVSS 4.0 base score of 8.6, rated high severity.
Is CVE-2017-20211 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (47th percentile), an estimate of the probability of exploitation in the next 30 days.
How do I fix CVE-2017-20211?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2017-20211 have an EU (EUVD) identifier?: Yes. CVE-2017-20211 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2017-18927.
When was CVE-2017-20211 published?: CVE-2017-20211 was published on 2025-11-12 and last updated on 2026-06-17.

References

Other CWE-823 vulnerabilities

CVE-2023-43553 — Critical (CVSS 9.8): Memory corruption while parsing beacon/probe response frame when AP sends more supported links in MLIE.
CVE-2026-46244 — Critical (CVSS 9.1): In the Linux kernel, the following vulnerability has been resolved: netfilter: nft_inner: Fix IPv6 inner_thoff…
CVE-2025-27059 — High (CVSS 8.8): Memory corruption while performing SCM call.
CVE-2022-0729 — High (CVSS 8.8): Use of Out-of-range Pointer Offset in GitHub repository vim/vim prior to 8.2.4440.
CVE-2023-20187 — High (CVSS 8.6): A vulnerability in the Multicast Leaf Recycle Elimination (mLRE) feature of Cisco IOS XE Software for Cisco ASR 1000…
CVE-2025-0467 — High (CVSS 8.2): Kernel software installed and running inside a Guest VM may exploit memory shared with the GPU Firmware to write data…

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