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Vulnerability record · CVE-2005-4470 · published 22 December 2005

CVE-2005-4470: Blender blenloader vulnerability

Blender · Blenloader

Heap-based buffer overflow in the get_bhead function in readfile.c in Blender BlenLoader 2.0 through 2.40pre allows remote attackers to cause a denial of service (application crash) and possibly execute arbitrary code via a .blend file with a negative bhead.len value, which causes less memory to be allocated than expected, possibly due to an integer overflow.

7.5 CVSS 2.0 High EPSS 5.8% · top 7.2%
7.5CVSS 2.0 base score
5.8%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
22References, 4 tagged exploit
16 Jun 2026Last modified by NVD

Description

Heap-based buffer overflow in the get_bhead function in readfile.c in Blender BlenLoader 2.0 through 2.40pre allows remote attackers to cause a denial of service (application crash) and possibly execute arbitrary code via a .blend file with a negative bhead.len value, which causes less memory to be allocated than expected, possibly due to an integer overflow.

AV:N/AC:L/Au:N/C:P/I:P/A:P

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

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Source: NIST National Vulnerability Database (record CVE-2005-4470), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.