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TI-2021-04993 Aliases CVE-2021-21948GHSA-3q56-mvp8-x9j4

Heap-based buffer overflow in AnyCubic Chitubox AnyCubic Plugin

Priority HIGH 69CWE-122Published · Updated

Key facts

Attack vector
Local
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-122 and the CVSS impact.

Summary

A heap-based buffer overflow vulnerability exists in the readDatHeadVec functionality of AnyCubic Chitubox AnyCubic Plugin 1.0.0. A specially-crafted GF file can lead to a heap buffer overflow. An attacker can provide a malicious file to trigger this vulnerability.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00778 56th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
AnyCubicChitubox AnyCubic Plugin1.0.0—No fix listedCNA
ChituboxChitubox BasicV1.8.1—No fix listedCNA
  • Chitubox AnyCubic Plugin VendorAnyCubic Affected 1.0.0 Fixed in — No fix listed CNA
  • Chitubox Basic VendorChitubox Affected V1.8.1 Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:a:chitubox:chitubox_basic:1.8.1:*:*:*:*:*:*:*1.8.1VulnerableChitubox
cpe:2.3:a:anycubic:chitubox:1.0.0:*:*:*:*:anycubic:*:*1.0.0VulnerableAnyCubic
  • cpe:2.3:a:chitubox:chitubox_basic:1.8.1:*:*:*:*:*:*:* Versions 1.8.1 Vulnerable ·Chitubox
  • cpe:2.3:a:anycubic:chitubox:1.0.0:*:*:*:*:anycubic:*:* Versions 1.0.0 Vulnerable ·AnyCubic

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-21948
  2. 2026-10-03 Alias added: GHSA-3q56-mvp8-x9j4

References

Exploit 1

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences