NVD

CVE-2019-1761 Detail

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.

Metrics

NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.

CVSS 4.0 Severity and Vector Strings:

NIST: NVD

N/A

NVD assessment not yet provided.

CVSS 3.x Severity and Vector Strings:

NIST: NVD

Base Score: 4.3 MEDIUM

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

Nist CVSS score does not match with CNA score

CNA: Cisco Systems, Inc.

Base Score: 4.3 MEDIUM

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

CVSS 2.0 Severity and Vector Strings:

National Institute of Standards and Technology

NIST: NVD

Base Score: 3.3 LOW

Vector: (AV:A/AC:L/Au:N/C:P/I:N/A:N)

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
http://www.securityfocus.com/bid/107620	CVE, Cisco Systems, Inc.	Broken Link Third Party Advisory VDB Entry
https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190327-ios-infoleak	CVE, Cisco Systems, Inc.	Patch Vendor Advisory

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-665	Improper Initialization	NIST Cisco Systems, Inc.

Known Affected Software Configurations Switch to CPE 2.2

CPEs loading, please wait.

Denotes Vulnerable Software
Are we missing a CPE here? Please let us know.

Change History

7 change records found show changes

Modified Analysis by NIST 9/11/2025 10:41:27 AM

Action

Type

Old Value

New Value

Changed

CPE Configuration

Record truncated, showing 2048 of 99232 characters.
View Entire Change Record

OR
          *cpe:2.3:o:cisco:ios_xe:3.2.10sg:*:*:*:*:*:*:*
          *cpe:2.3:o:cisco:ios:12.4(11)xw6:*:*:*:*:*:*:*
          *cpe:2.3:o:cisco:ios_xe:3.3.0sq:*:*:*:*:*:*:*
          *cpe:2.3:o:cisco:ios:15.2(4)ea:*:*:*:*:*:*:*
          *cpe:2.3:o:cisco:ios:15.4(2)s2:*:*:*:*:*:*:*
          *cpe:2.3:o:cisco:ios:15.3(3)jnb3:*:*:*:*:*:*:*
          *cpe:2.3:o:cisco:ios_xe:3.13.2s:*:*:*:*:*:*:*
          *cpe:2.3:o:cisco:ios:12.2(53)sg9:*:*:*:*:*:*:*
          *cpe:2.3:o:cisco:ios:12.4(16)mr1:*:*:*:*:*:*:*
          *cpe:2.3:o:cisco:ios:15.0(2)sg11:*:*:*:*:*:*:*
          *cpe:2.3:o:cisco:ios_xe:3.2.0sg:*:*:*:*:*:*:*
          *cpe:2.3:o:cisco:ios:12.4(2)xa1:*:*:*:*:*:*:*
          *cpe:2.3:o:cisco:ios:12.4(20)mrb:*:*:*:*:*:*:*
          *cpe:2.3:o:cisco:ios:15.0(2)sg5:*:*:*:*:*:*:*
          *cpe:2.3:o:cisco:ios:15.0(2)ex4:*:*:*:*:*:*:*
          *cpe:2.3:o:cisco:ios:15.1(3)s4:*:*:*:*:*:*:*
          *cpe:2.3:o:cisco:ios:15.3(2)s1:*:*:*:*:*:*:*
          *cpe:2.3:o:cisco:ios_xe:3.10.6s:*:*:*:*:*:*:*
          *cpe:2.3:o:cisco:ios:15.1(1)s:*:*:*:*:*:*:*
          *cpe:2.3:o:cisco:ios:15.1(2)sy10:*:*:*:*:*:*:*
          *cpe:2.3:o:cisco:ios_xe:3.6.5be:*:*:*:*:*:*:*
          *cpe:2.3:o:cisco:ios_xe:3.13.6s:*:*:*:*:*:*:*
          *cpe:2.3:o:cisco:ios:12.4(15)xq2b:*:*:*:*:*:*:*
          *cpe:2.3:o:cisco:ios:12.4(22)mda6:*:*:*:*:*:*:*
          *cpe:2.3:o:cisco:ios:12.4(15)xq:*:*:*:*:*:*:*
          *cpe:2.3:o:cisco:ios:15.5(1)t1:*:*:*:*:*:*:*
          *cpe:2.3:o:cisco:ios:12.2(33)scj1a:*:*:*:*:*:*:*
          *cpe:2.3:o:cisco:ios:12.4(15)xf:*:*:*:*:*:*:*
          *cpe:2.3:o:cisco:ios:15.4(2)s4:*:*:*:*:*:*:*
          *cpe:2.3:o:cisco:ios:15.2(2)e5b:*:*:*:*:*:*:*
          *cpe:2.3:o:cisco:ios:15.0(1)ey:*:*:*:*:*:*:*
          *cpe:2.3:o:cisco:ios:15.3(3)jn:*:*:*:*:*:*:*
          *cpe:2.3:o:cisco:ios:12.4(15)xr5:*:*:*:*:*:*:*
          *cpe:2.3:o:cisco:ios:12.2(50)sq6:*:*:*:*:*:*:*
          *cpe:2.3:o:cisco:ios:15.0(2)sg10:*:*:*:*:*:*:*
          *cpe:2.3:o:cisco:ios:12.4(15)xl5:*:*:*:*:*:*:*
          *cpe:2.3:o

Record truncated, showing 2048 of 99182 characters.
View Entire Change Record

OR
          *cpe:2.3:o:cisco:ios_xe:3.2.10sg:*:*:*:*:*:*:*
          *cpe:2.3:o:cisco:ios:12.4(11)xw6:*:*:*:*:*:*:*
          *cpe:2.3:o:cisco:ios_xe:3.3.0sq:*:*:*:*:*:*:*
          *cpe:2.3:o:cisco:ios:15.2(4)ea:*:*:*:*:*:*:*
          *cpe:2.3:o:cisco:ios:15.4(2)s2:*:*:*:*:*:*:*
          *cpe:2.3:o:cisco:ios:15.3(3)jnb3:*:*:*:*:*:*:*
          *cpe:2.3:o:cisco:ios_xe:3.13.2s:*:*:*:*:*:*:*
          *cpe:2.3:o:cisco:ios:12.2(53)sg9:*:*:*:*:*:*:*
          *cpe:2.3:o:cisco:ios:12.4(16)mr1:*:*:*:*:*:*:*
          *cpe:2.3:o:cisco:ios:15.0(2)sg11:*:*:*:*:*:*:*
          *cpe:2.3:o:cisco:ios_xe:3.2.0sg:*:*:*:*:*:*:*
          *cpe:2.3:o:cisco:ios:12.4(2)xa1:*:*:*:*:*:*:*
          *cpe:2.3:o:cisco:ios:12.4(20)mrb:*:*:*:*:*:*:*
          *cpe:2.3:o:cisco:ios:15.0(2)sg5:*:*:*:*:*:*:*
          *cpe:2.3:o:cisco:ios:15.0(2)ex4:*:*:*:*:*:*:*
          *cpe:2.3:o:cisco:ios:15.1(3)s4:*:*:*:*:*:*:*
          *cpe:2.3:o:cisco:ios:15.3(2)s1:*:*:*:*:*:*:*
          *cpe:2.3:o:cisco:ios_xe:3.10.6s:*:*:*:*:*:*:*
          *cpe:2.3:o:cisco:ios:15.1(1)s:*:*:*:*:*:*:*
          *cpe:2.3:o:cisco:ios:15.1(2)sy10:*:*:*:*:*:*:*
          *cpe:2.3:o:cisco:ios_xe:3.6.5be:*:*:*:*:*:*:*
          *cpe:2.3:o:cisco:ios_xe:3.13.6s:*:*:*:*:*:*:*
          *cpe:2.3:o:cisco:ios:12.4(15)xq2b:*:*:*:*:*:*:*
          *cpe:2.3:o:cisco:ios:12.4(22)mda6:*:*:*:*:*:*:*
          *cpe:2.3:o:cisco:ios:12.4(15)xq:*:*:*:*:*:*:*
          *cpe:2.3:o:cisco:ios:15.5(1)t1:*:*:*:*:*:*:*
          *cpe:2.3:o:cisco:ios:12.2(33)scj1a:*:*:*:*:*:*:*
          *cpe:2.3:o:cisco:ios:12.4(15)xf:*:*:*:*:*:*:*
          *cpe:2.3:o:cisco:ios:15.4(2)s4:*:*:*:*:*:*:*
          *cpe:2.3:o:cisco:ios:15.2(2)e5b:*:*:*:*:*:*:*
          *cpe:2.3:o:cisco:ios:15.0(1)ey:*:*:*:*:*:*:*
          *cpe:2.3:o:cisco:ios:15.3(3)jn:*:*:*:*:*:*:*
          *cpe:2.3:o:cisco:ios:12.4(15)xr5:*:*:*:*:*:*:*
          *cpe:2.3:o:cisco:ios:12.2(50)sq6:*:*:*:*:*:*:*
          *cpe:2.3:o:cisco:ios:15.0(2)sg10:*:*:*:*:*:*:*
          *cpe:2.3:o:cisco:ios:12.4(15)xl5:*:*:*:*:*:*:*
          *cpe:2.3:o

Changed

Reference Type

CVE: http://www.securityfocus.com/bid/107620 Types: Third Party Advisory, VDB Entry

CVE: http://www.securityfocus.com/bid/107620 Types: Broken Link, Third Party Advisory, VDB Entry

Changed

Reference Type

Cisco Systems, Inc.: http://www.securityfocus.com/bid/107620 Types: Third Party Advisory, VDB Entry

Cisco Systems, Inc.: http://www.securityfocus.com/bid/107620 Types: Broken Link, Third Party Advisory, VDB Entry

Initial Analysis by NIST 4/02/2019 11:32:02 AM

Action	Type	Old Value	New Value
Added	CVSS V3		AV:A/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Added	CVSS V2		(AV:A/AC:L/Au:N/C:P/I:N/A:N)
Added	CWE		CWE-665
Added	CPE Configuration		Record truncated, showing 2048 of 93402 characters. View Entire Change Record OR 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::::::: cpe:2.3:o:cisco:ios:12.2\(33\)irh::::::: cpe:2.3:o:cisco:ios:12.2\(33\)irh1::::::: cpe:2.3:o:cisco:ios:12.2\(33\)mra::::::: cpe:2.3:o:cisco:ios:12.2\(33\)mrb::::::: cpe:2.3:o:cisco:ios:12.2\(33\)mrb1::::::: cpe:2.3:o:cisco:ios:12.2\(33\)mrb2::::::: cpe:2.3:o:cisco:ios:12.2\(33\)mrb3::::::: cpe:2.3:o:cisco:ios:12.2\(33\)mrb4::::::: cpe:2.3:o:cisco:ios:12.2\(33\)mrb5::::::: cpe:2.3:o:cisco:ios:12.2\(33\)mrb6::::::: cpe:2.3:o:cisco:ios:12.2\(33\)sb::::::: cpe:2.3:o:cisco:ios:12.2\(33\)sb1::::::: cpe:2.3:o:cisco:ios:12.2\(33\)sb1a::::::: cpe:2.3:o:cisco:ios:12.2\(33\)sb1b::::::: cpe:2.3:o:cisco:ios:12.2\(33\)sb2::::::: cpe:2.3:o:cisco:ios:12.2\(33\)sb3::::::: cpe:2.3:o:cisco:ios:12.2\(33\)sb4::::::: cpe:2.3:o:cisco:ios:12.2\(33\)sb5::::::: cpe:2.3:o:cisco:ios:12.2\(33\)sb6::::::: cpe:2.3:o:cisco:ios:12.2\(33\)sb6a::::::: cpe:2.3:o:cisco:ios:12.2\(33\)sb6b::::::: cpe:2.3:o:cisco:ios:12.2\(33\)sb7::::::: *cpe:2.3:o:cisco:ios:12.2\(33\)sb
Changed	Reference Type	http://www.securityfocus.com/bid/107620 No Types Assigned	http://www.securityfocus.com/bid/107620 Third Party Advisory, VDB Entry
Changed	Reference Type	https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190327-ios-infoleak No Types Assigned	https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190327-ios-infoleak Patch, Vendor Advisory

Quick Info

CVE Dictionary Entry:
CVE-2019-1761
NVD Published Date:
03/27/2019
NVD Last Modified:
09/11/2025
Source:
Cisco Systems, Inc.

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Information Technology Laboratory

National Vulnerability Database

National Vulnerability Database

CVE-2019-1761 Detail

Description

Metrics

References to Advisories, Solutions, and Tools

Weakness Enumeration

Known Affected Software Configurations Switch to CPE 2.2

CPEs loading, please wait.

Change History

Modified Analysis by NIST 9/11/2025 10:41:27 AM

CVE Modified by CVE 11/20/2024 11:37:18 PM

CVE Modified by Cisco Systems, Inc. 5/14/2024 1:53:37 AM

Modified Analysis by NIST 5/11/2020 11:58:48 AM

CVE Modified by Cisco Systems, Inc. 10/09/2019 7:48:03 PM

Initial Analysis by NIST 4/02/2019 11:32:02 AM

CVE Modified by Cisco Systems, Inc. 3/29/2019 5:29:00 AM

Quick Info