CVE-2007-0251
HIGH · CVSS 7.8EPSS 2.4%EU EUVD
Integer underflow in the DecodeGRE function in src/decode.c in Snort 2.6.1.2 allows remote attackers to trigger dereferencing of certain memory locations via crafted GRE packets, which may cause corruption of log files or writing of sensitive information into log files.
Key facts
- CVSS score
- 7.8 (v2.0)
- Severity
- HIGH
- CVSS vector
AV:N/AC:L/Au:N/C:N/I:N/A:C- EPSS score
- 2.4% (84th percentile)
- In CISA KEV
- No
- In EU EUVD
- Yes (EUVD-2007-0253)
- Published
- January 16, 2007
- NVD last modified
- June 16, 2026
- Status
- Modified
EU Vulnerability Database (EUVD)
This vulnerability is also tracked by ENISA as EUVD-2007-0253 in the EU Vulnerability Database. Last updated in EUVD on August 7, 2024.
View on the EU Vulnerability DatabaseAffected products
- snort / snort
References
- http://labs.calyptix.com/advisories/CX-2007-01.txt
- http://osvdb.org/32095
- http://osvdb.org/33464
- http://securityreason.com/securityalert/2165
- http://securitytracker.com/id?1017507
- http://www.securityfocus.com/archive/1/456598/100/0/threaded
- http://www.securityfocus.com/bid/22004
- http://www.snort.org/got_source/source.html
- http://www.vupen.com/english/advisories/2007/0152
Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS
Query CVEs from your AI assistant
The CVE/NVD Explorer brain answers CVE questions directly inside Claude, ChatGPT, or any MCP assistant — always up to date, no setup. Add it once and stop pasting advisories into chat.
Add the CVE brain