CVE-2006-1991 : The substr_compare function in string.c in PHP 5.1.2 allows context-dependent attackers to cause a denial of service (me

The substr_compare function in string.c in PHP 5.1.2 allows context-dependent attackers to cause a denial of service (memory access violation) via an out-of-bounds offset argument.

Published 2006-04-24 23:02:00

Updated 2017-07-20 01:31:05

Source Red Hat, Inc.

View at NVD, CVE.org

Vulnerability category: Denial of service

Threat overview for CVE-2006-1991

Top countries where our scanners detected CVE-2006-1991

Top open port discovered on systems with this issue 80

IPs affected by CVE-2006-1991 876

Threat actors abusing to this issue? Yes

Find out if you^* are affected by CVE-2006-1991!

^*Directly or indirectly through your vendors, service providers and 3rd parties. Powered by attack surface intelligence from SecurityScorecard.

Exploit prediction scoring system (EPSS) score for CVE-2006-1991

Probability of exploitation activity in the next 30 days: 3.49%

Percentile, the proportion of vulnerabilities that are scored at or less: ~ 91 % EPSS Score History EPSS FAQ

CVSS scores for CVE-2006-1991

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
6.4	MEDIUM	AV:N/AC:L/Au:N/C:N/I:P/A:P	10.0	4.9	NIST
Access Vector: Network Access Complexity: Low Authentication: None Confidentiality Impact: None Integrity Impact: Partial Availability Impact: Partial

CWE ids for CVE-2006-1991

CWE-399

Assigned by: nvd@nist.gov (Primary)

References for CVE-2006-1991

Products affected by CVE-2006-1991