CVE-2009-20004

Exploitation

Public exploit code exists. CISA's assessment records a public proof of concept. That is not a report of exploitation in the wild.

SSVC decision

• ExploitationpocPublic proof-of-concept exploit code exists. Not a report of exploitation in the wild.
• AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
• Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.34% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 27.4% of scored records. A rank, not a probability.

NVD base score

8.4 (CVSS v4.0), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

NVD analysis status

Deferred. NVD last modified this record on 2026-06-16.

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2025-08-21 20:11Z1 YR AGO

Last updated

2026-05-15 11:13Z3 MO AGO

Reserved

2025-08-21

Assigning CNA

VulnCheck

Record state

PUBLISHED

Severity

High (CVSS 8.4)

CNA CVSS vector

CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Weaknesses

• CWE-121Stack-based Buffer OverflowVariant

Data version

5.2

Document digest

e51affbde4cc60a3a52caf1f64774ca20d697a22ff6075bbea1f6d1c5cc39678

• raw.githubusercontent.comhttps://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/windows/fileformat/galan_fileformat_bof.rbexploit
• www.exploit-db.comhttps://www.exploit-db.com/exploits/16664exploit
• www.exploit-db.comhttps://www.exploit-db.com/exploits/10345exploit
• www.exploit-db.comhttps://www.exploit-db.com/exploits/10339exploit
• www.fortiguard.comhttps://www.fortiguard.com/encyclopedia/ips/18034/galan-galan-file-stack-overflowthird-party-advisory
• web.archive.orghttps://web.archive.org/web/20101210055252/http://galan.sourceforge.net/product
• www.vulncheck.comhttps://www.vulncheck.com/advisories/galan-buffer-overflowthird-party-advisory