CVE-2006-5276
CriticalPublic exploitStack-based buffer overflow in the DCE/RPC preprocessor in Snort before 2.6.1.3, and 2.7 before beta 2; and Sourcefire Intrusion Sensor; allows remote attackers to execute arbitrary code via crafted SMB traffic.
Published Feb 19, 2007 · Updated Apr 22, 2026
Key Facts
Patch immediately- CVE-2006-5276 is a critical-severity vulnerability (CVSS 10.0 v2) affecting Snort, Intrusion Sensor (Sourcefire).
- It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
- EPSS estimates a 79% probability of exploitation in the next 30 days.
- Fixed versions are available, including Snort 2.6.1.2.
- Brandefense priority: patch immediately, because it is very likely to be exploited soon.
CVSS v2
10.0
AV:N/AC:L/Au:N/C:C/I:C/A:C
EPSS (30-day exploit likelihood)
79%
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
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Description
Stack-based buffer overflow in the DCE/RPC preprocessor in Snort before 2.6.1.3, and 2.7 before beta 2; and Sourcefire Intrusion Sensor; allows remote attackers to execute arbitrary code via crafted SMB traffic.
Affected Products
10 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| SnortSnort | 2.6.1, 2.6.1.1, 2.7_beta1 | 2.6.1.2 |
| Intrusion SensorSourcefire | 4.1, 4.5, 4.6 | n/a |
Patched Releases
Snort
2.6.1.2
Timeline
Publicly disclosed
Feb 19, 2007
Last updated
Apr 22, 2026
References
- advisory20070219 Sourcefire Snort Remote Buffer Overflow
- advisoryhttp://www.snort.org/docs/advisory-2007-02-19.html
- advisoryTA07-050A
- exploitMSF snort_dce_rpc.rb
- exploitExploitDB-18723
FAQ
Common Questions.
Stack-based buffer overflow in the DCE/RPC preprocessor in Snort before 2.6.1.3, and 2.7 before beta 2; and Sourcefire Intrusion Sensor; allows remote attackers to execute arbitrary code via crafted SMB traffic.
Affected: Snort versions 2.6.1, 2.6.1.1, 2.7_beta1; Intrusion Sensor (Sourcefire) versions 4.1, 4.5, 4.6. 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.
Fixed versions are available, including Snort 2.6.1.2.
Brandefense priority: patch immediately, because it is very likely to be exploited soon.
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