CVE-2005-3252
HighPublic exploitStack-based buffer overflow in the Back Orifice (BO) preprocessor for Snort before 2.4.3 allows remote attackers to execute arbitrary code via a crafted UDP packet.
Published Oct 18, 2005 · Updated Apr 15, 2026
Key Facts
Patch immediately- CVE-2005-3252 is a high-severity vulnerability (CVSS 7.5 v2) affecting Snort (Sourcefire).
- It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
- EPSS estimates a 84% probability of exploitation in the next 30 days.
- No fixed version is listed yet; check the vendor advisory for mitigations.
- Brandefense priority: patch immediately, because it is very likely to be exploited soon.
CVSS v2
7.5
AV:N/AC:L/Au:N/C:P/I:P/A:P
EPSS (30-day exploit likelihood)
84%
Higher than 99.6% of all scored CVEs
Exploited in the wild
No known
Not in a known-exploited catalog
Public exploit code
Available
Proof-of-concept or weaponized module
Get the full CVE-2005-3252 brief as a PDF
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Description
Stack-based buffer overflow in the Back Orifice (BO) preprocessor for Snort before 2.4.3 allows remote attackers to execute arbitrary code via a crafted UDP packet.
Affected Products
3 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| SnortSourcefire | 2.4.0, 2.4.1, 2.4.2 | n/a |
Timeline
Publicly disclosed
Oct 18, 2005
Last updated
Apr 15, 2026
References
- advisory20051018 Snort Back Orifice Parsing Remote Code Execution
- patchVU#175500
- patchTA05-291A
- exploitMSF snortbopre.rb
- exploitExploitDB-10026
FAQ
Common Questions.
Stack-based buffer overflow in the Back Orifice (BO) preprocessor for Snort before 2.4.3 allows remote attackers to execute arbitrary code via a crafted UDP packet.
Affected: Snort (Sourcefire) versions 2.4.0, 2.4.1, 2.4.2. The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
No fixed version is listed yet; check the vendor advisory for mitigations.
Brandefense priority: patch immediately, because it is very likely to be exploited soon.
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