Out-of-bounds read in Snort 3.0 All versions prior to build 233.
Priority LOW 35CWE-125Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- No fix listed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA. Impact type from CWE-125 and the CVSS impact.
Summary
Cisco Sourcefire Snort 3.0 before build 233 has a Buffer Overread related to use of a decoder array. The size was off by one making it possible to read past the end of the array with an ether type of 0xFFFF. Increasing the array size solves this problem.
Why it matters now
EPSS 0.0106 64th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | Snort 3.0 All versions prior to build 233. | Snort 3.0 All versions prior to build 233. | — | No fix listed | CNA |
- Snort 3.0 All versions prior to build 233. Vendor— Affected Snort 3.0 All versions prior to build 233. Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2017-6658
- 2026-10-03 Alias added: GHSA-7mxj-982j-3px6
References
Sources
- CVE-2017-6658 · CVE Program
- CVE-2017-6658 · NVD
- FIRST EPSS
- GHSA-7mxj-982j-3px6 · GitHub Advisory Database · CC BY 4.0
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