CVE-2005-4470

Exp

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.

Published: 2005-12-21 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2005-4470 is rated High Exploit Risk (77.1/100): CVSS High severity, with high exploitation likelihood (EPSS 5.79%, 92th percentile). 2 public exploit reference(s) are indexed (Exploit-DB). Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2005-4470

EDB-ID Source Kind Published Link
— nvd_ref exploit_tag Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2005-4470

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 5.97% 5.79% -0.18%
2 2025-03-30 5.79% 5.97% +0.18%
3 2025-03-29 — 5.79% —

Full EPSS history (10 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2005-4470

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.5 2.0 HIGH
AV:N/AC:L/Au:N/C:P/I:P/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:P)
Partial availability impact.
 10.0 6.4 [email protected]

Weakness enumeration for CVE-2005-4470

OS Trackers for CVE-2005-4470

vendor priority summary link
debian medium CVE-2005-4470 medium priority: Debian including 1 source packages (blender), 4 status rows across 4 suites (bookworm, bullseye, sid, trixie): resolved 4. https://security-tracker.debian.org/tracker/CVE-2005-4470
gentoo normal CVE-2005-4470: 1 GLSA(s) (200601-08), 1 atom(s) (media-gfx/blender); latest impact normal. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2005-4470
suse medium — https://www.suse.com/security/cve/CVE-2005-4470/
ubuntu medium CVE-2005-4470 medium priority: Ubuntu including 1 source packages (blender), 4 status rows across 4 suites (dapper, edgy, feisty, upstream): not-affected 3, needs-triage 1. https://ubuntu.com/security/CVE-2005-4470

Affected software / configurations for CVE-2005-4470

Vendor Product Version Raw CPE
blender blenloader <= 2.40_pre cpe:2.3:a:blender:blenloader:*:*:*:*:*:*:*:*
blender blenloader 2.0 cpe:2.3:a:blender:blenloader:2.0:*:*:*:*:*:*:*
blender blenloader 2.04 cpe:2.3:a:blender:blenloader:2.04:*:*:*:*:*:*:*
blender blenloader 2.25 cpe:2.3:a:blender:blenloader:2.25:*:*:*:*:*:*:*
blender blenloader 2.26 cpe:2.3:a:blender:blenloader:2.26:*:*:*:*:*:*:*
blender blenloader 2.27 cpe:2.3:a:blender:blenloader:2.27:*:*:*:*:*:*:*
blender blenloader 2.28 cpe:2.3:a:blender:blenloader:2.28:*:*:*:*:*:*:*
blender blenloader 2.28a cpe:2.3:a:blender:blenloader:2.28a:*:*:*:*:*:*:*
blender blenloader 2.28c cpe:2.3:a:blender:blenloader:2.28c:*:*:*:*:*:*:*
blender blenloader 2.30 cpe:2.3:a:blender:blenloader:2.30:*:*:*:*:*:*:*
blender blenloader 2.31a cpe:2.3:a:blender:blenloader:2.31a:*:*:*:*:*:*:*
blender blenloader 2.32 cpe:2.3:a:blender:blenloader:2.32:*:*:*:*:*:*:*
blender blenloader 2.33 cpe:2.3:a:blender:blenloader:2.33:*:*:*:*:*:*:*
blender blenloader 2.33a cpe:2.3:a:blender:blenloader:2.33a:*:*:*:*:*:*:*
blender blenloader 2.34 cpe:2.3:a:blender:blenloader:2.34:*:*:*:*:*:*:*
blender blenloader 2.35 cpe:2.3:a:blender:blenloader:2.35:*:*:*:*:*:*:*
blender blenloader 2.37 cpe:2.3:a:blender:blenloader:2.37:*:*:*:*:*:*:*
blender blenloader 2.37a cpe:2.3:a:blender:blenloader:2.37a:*:*:*:*:*:*:*
blender blenloader 2.39 cpe:2.3:a:blender:blenloader:2.39:*:*:*:*:*:*:*
blender blenloader 2.40_alpha cpe:2.3:a:blender:blenloader:2.40_alpha:*:*:*:*:*:*:*

References for CVE-2005-4470

cvelogic Threat Intelligence