CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:M/Au:N/C:N/I:P/A:N
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
LOW
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
EPSS
Percentile
47.9%
A vulnerability in the Voice Telephony Service Provider (VTSP) service of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to bypass configured destination patterns and dial arbitrary numbers. This vulnerability is due to insufficient validation of dial strings at Foreign Exchange Office (FXO) interfaces. An attacker could exploit this vulnerability by sending a malformed dial string to an affected device via either the ISDN protocol or SIP. A successful exploit could allow the attacker to conduct toll fraud, resulting in unexpected financial impact to affected customers.
Vendor | Product | Version | CPE |
---|---|---|---|
cisco | ios | 12.3(7)xm | cpe:2.3:o:cisco:ios:12.3\(7\)xm:*:*:*:*:*:*:* |
cisco | ios | 12.3(7)xr | cpe:2.3:o:cisco:ios:12.3\(7\)xr:*:*:*:*:*:*:* |
cisco | ios | 12.3(7)xr1 | cpe:2.3:o:cisco:ios:12.3\(7\)xr1:*:*:*:*:*:*:* |
cisco | ios | 12.3(7)xr2 | cpe:2.3:o:cisco:ios:12.3\(7\)xr2:*:*:*:*:*:*:* |
cisco | ios | 12.3(7)xr3 | cpe:2.3:o:cisco:ios:12.3\(7\)xr3:*:*:*:*:*:*:* |
cisco | ios | 12.3(7)xr4 | cpe:2.3:o:cisco:ios:12.3\(7\)xr4:*:*:*:*:*:*:* |
cisco | ios | 12.3(7)xr5 | cpe:2.3:o:cisco:ios:12.3\(7\)xr5:*:*:*:*:*:*:* |
cisco | ios | 12.3(7)xr6 | cpe:2.3:o:cisco:ios:12.3\(7\)xr6:*:*:*:*:*:*:* |
cisco | ios | 12.3(7)xr7 | cpe:2.3:o:cisco:ios:12.3\(7\)xr7:*:*:*:*:*:*:* |
cisco | ios | 12.3(8)ja2 | cpe:2.3:o:cisco:ios:12.3\(8\)ja2:*:*:*:*:*:*:* |
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
NONE
AV:N/AC:M/Au:N/C:N/I:P/A:N
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
LOW
Availability Impact
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
EPSS
Percentile
47.9%