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CVE-2021-42521

HIGH
7.5
CVSS Score
Published: August 25, 2022 at 12:00 AM UTC
Updated: June 17, 2026 at 04:09 AM UTC
2 products affected across 2 vendorsVtkVtk

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Severity
HIGH7.5
Exploit prediction
EPSS 1%

Description

There is a NULL pointer dereference vulnerability in VTK before 9.2.5, and it lies in IO/Infovis/vtkXMLTreeReader.cxx. The vendor didn't check the return value of libxml2 API 'xmlDocGetRootElement', and try to dereference it. It is unsafe as the return value can be NULL and that NULL pointer dereference may crash the application.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (3)

Source: [email protected]
https://discourse.vtk.org/t/vtk-9-2-5-is-out/10549
ExploitIssue TrackingThird Party Advisory
Source: [email protected]
https://gitlab.kitware.com/vtk/vtk/issues/17818
Vendor Advisory
Source: [email protected]
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PCTMSAAVP4BW2HTZLDWMGKZ2WEC5OFLK/

CVSS

7.5HIGH[email protected]
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-400CWE-476

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