CVE-2009-3586

critical

Description

Off-by-one error in src/http.c in CoreHTTP 0.5.3.1 and earlier allows remote attackers to cause a denial of service or possibly execute arbitrary code via an HTTP request with a long first line that triggers a buffer overflow. NOTE: this vulnerability reportedly exists because of an incorrect fix for CVE-2007-4060.

References

http://www.securityfocus.com/archive/1/508272/100/0/threaded

Details

Source: Mitre, NVD

Published: 2009-12-08

Updated: 2026-06-16

Risk Information

CVSS v2

Base Score: 7.5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P

Severity: High

CVSS v3

Base Score: 9.8

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Severity: Critical

EPSS

EPSS: 0.0942