CVE-2017-6658
Cisco Sourcefire Snort 3.0 before build 233 has a Buffer Overread related to use of a decoder array.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.06%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
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.
- CVSS 3.0
- 7.5 HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 1.06% probability · 64th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-125
- Affected
- cisco/sourcefire snort
- Source
- psirt@cisco.com
EPSS 1.1% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://blog.snort.org/2017/05/snort-vulnerabilities-found.htmlThird Party Advisory
- http://www.securitytracker.com/id/1038483
- https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170515-snortVendor Advisory
- http://blog.snort.org/2017/05/snort-vulnerabilities-found.htmlThird Party Advisory
- http://www.securitytracker.com/id/1038483
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.