Instituto Nacional de ciberseguridad. Sección Incibe
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CVE-2019-1761

Severity CVSS v4.0:
Pending analysis
Type:
Unavailable / Other
Publication date:
28/03/2019
Last modified:
11/09/2025

Description

A vulnerability in the Hot Standby Router Protocol (HSRP) subsystem of Cisco IOS and IOS XE Software could allow an unauthenticated, adjacent attacker to receive potentially sensitive information from an affected device. The vulnerability is due to insufficient memory initialization. An attacker could exploit this vulnerability by receiving HSRPv2 traffic from an adjacent HSRP member. A successful exploit could allow the attacker to receive potentially sensitive information from the adjacent device.

Impact

Vector 3.x
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N CVSS v3.1 Severity and Metrics:

Base Score: 4.30 MEDIUM
Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Attack Vector (AV): Adjacent
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): Low
Integrity (I): None
Availability (A): None

Base Score 3.x
4.30
Severity 3.x
MEDIUM
Vector 2.0
AV:A/AC:L/Au:N/C:P/I:N/A:N CVSS v2.0 Severity and Metrics:

Base Score: 3.30 LOW
Vector: AV:A/AC:L/Au:N/C:P/I:N/A:N

Attack Vector (AV): Adjacent
Attack Complexity (AC): Low
Authentication (Au): None
Confidentiality (C): Physical
Integrity (I): None
Availability (A): None

Base Score 2.0
3.30
Severity 2.0
LOW

Vulnerable products and versions

CPE From Up to
cpe:2.3:o:cisco:ios:12.2\(6\)i1:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:12.2\(33\)cx:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:12.2\(33\)cy:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:12.2\(33\)cy1:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:12.2\(33\)cy2:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:12.2\(33\)ira:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:12.2\(33\)irb:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:12.2\(33\)irc:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:12.2\(33\)ird:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:12.2\(33\)ire:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:12.2\(33\)ire1:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:12.2\(33\)ire2:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:12.2\(33\)irf:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:12.2\(33\)irg:*:*:*:*:*:*:*
cpe:2.3:o:cisco:ios:12.2\(33\)irg1:*:*:*:*:*:*:*

To consult the complete list of CPE names with products and versions, see this page


References to Advisories, Solutions, and Tools