CVE-2005-4470

Blenloader vulnerability

CVSS

7.5

EPSS

5.8%

EPSS pct

92th

Exploited

No known

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.

Affected vendor

Blender

Affected product

Blenloader

CVSS vector

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

Published

2005-12-22

Risk analysis

Based on its CVSS vector, this vulnerability is exploitable over the network, low attack complexity, requiring no authentication. Successful exploitation leads to partial impact to confidentiality, partial impact to integrity, partial impact to availability.

Its EPSS score of 5.8% reflects a lower probability of exploitation activity in the wild over the next 30 days, placing it above 92% of all scored CVEs.

Check your external exposure to CVE-2005-4470

Confirm whether Blender Blenloader is running on any internet-facing host or subdomain.
Match discovered service fingerprints against the version affected by CVE-2005-4470.
Prioritise remediation if the asset is public, business-critical, or near authentication/payment flows.

How ThreatPort helps with CVE-2005-4470

ThreatPort's external attack surface scanner checks your internet-facing assets — agentlessly, from the outside in — for the exposed services and versions that CVE-2005-4470 affects, then prioritises the finding by real risk using CISA KEV and FIRST.org EPSS.

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