How severe is CVE-2021-22643?

CVE-2021-22643 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2021-22643 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (79th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-22643?

CVE-2021-22643 primarily affects Luxion Keyshot. In total, 6 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2021-22643?

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.

When was CVE-2021-22643 published?

CVE-2021-22643 was published on 2021-02-23 and last updated on 2026-06-17.

CVE-2021-22643

CVE-2021-22643 is a high-severity vulnerability in Luxion Keyshot with a CVSS 3.x base score of 7.8. 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-125.

Key facts

Severity: High (CVSS 3.x base score 7.8)
CVSS v2: 6.8
EPSS exploit prediction: 2% (79th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-125
Affected product: Luxion Keyshot
Published: 2021-02-23
Last modified: 2026-06-17

Description

Luxion KeyShot versions prior to 10.1, Luxion KeyShot Viewer versions prior to 10.1, Luxion KeyShot Network Rendering versions prior to 10.1, and Luxion KeyVR versions prior to 10.1 are vulnerable to an out-of-bounds read while processing project files, which may allow an attacker to execute arbitrary code.

Frequently asked questions

What is CVE-2021-22643?: Luxion KeyShot versions prior to 10.1, Luxion KeyShot Viewer versions prior to 10.1, Luxion KeyShot Network Rendering versions prior to 10.1, and Luxion KeyVR versions prior to 10.1 are vulnerable to an out-of-bounds read while processing project files, which may allow an attacker to execute arbitrary code.
How severe is CVE-2021-22643?: CVE-2021-22643 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2021-22643 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (79th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-22643?: CVE-2021-22643 primarily affects Luxion Keyshot. In total, 6 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2021-22643?: 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.
When was CVE-2021-22643 published?: CVE-2021-22643 was published on 2021-02-23 and last updated on 2026-06-17.

References

Affected products (6)

cpe:2.3:a:luxion:keyshot:*:*:*:*:*:*:*:*
cpe:2.3:a:luxion:keyshot_network_rendering:*:*:*:*:*:*:*:*
cpe:2.3:a:luxion:keyshot_viewer:*:*:*:*:*:*:*:*
cpe:2.3:a:luxion:keyvr:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:solid_edge_se2020_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:siemens:solid_edge_se2021_firmware:*:*:*:*:*:*:*:*

More vulnerabilities in Luxion Keyshot

CVE-2025-7222 — High (CVSS 7.8): Luxion KeyShot 3DM File Parsing Out-Of-Bounds Write Remote Code Execution Vulnerability. This vulnerability allows…
CVE-2025-1047 — High (CVSS 7.8): Luxion KeyShot PVS File Parsing Access of Uninitialized Pointer Remote Code Execution Vulnerability. This vulnerability…
CVE-2025-1046 — High (CVSS 7.8): Luxion KeyShot SKP File Parsing Use-After-Free Remote Code Execution Vulnerability. This vulnerability allows remote…
CVE-2025-1045 — High (CVSS 7.8): Luxion KeyShot Viewer KSP File Parsing Heap-based Buffer Overflow Remote Code Execution Vulnerability. This…
CVE-2025-2532 — High (CVSS 7.8): Luxion KeyShot USDC File Parsing Use-After-Free Remote Code Execution Vulnerability. This vulnerability allows remote…
CVE-2025-2531 — High (CVSS 7.8): Luxion KeyShot DAE File Parsing Heap-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability…

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Other CWE-125 (Out-of-bounds Read) vulnerabilities

CVE-2026-24826 — Critical (CVSS 10.0): Out-of-bounds Write, Divide By Zero, NULL Pointer Dereference, Use of Uninitialized Resource, Out-of-bounds Read,…
CVE-2024-22004 — Critical (CVSS 10.0): Due to length check, an attacker with privilege access on a Linux Nonsecure operating system can trigger a…
CVE-2021-41556 — Critical (CVSS 10.0): sqclass.cpp in Squirrel through 2.2.5 and 3.x through 3.1 allows an out-of-bounds read (in the core interpreter) that…
CVE-2021-21777 — Critical (CVSS 10.0): An information disclosure vulnerability exists in the Ethernet/IP UDP handler functionality of EIP Stack Group OpENer…
CVE-2017-14451 — Critical (CVSS 10.0): An exploitable out-of-bounds read vulnerability exists in libevm (Ethereum Virtual Machine) of CPP-Ethereum. A…
CVE-2013-0767 — Critical (CVSS 10.0): The nsSVGPathElement::GetPathLengthScale function in Mozilla Firefox before 18.0, Firefox ESR 10.x before 10.0.12 and…

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