← Back

Cisco

cisco

6,717 CVEs • 6,231 products

Products (6,231)

Click to collapse
Toggle
Ios
ios
Ios Xe
ios_xe
Nx Os
nx_os
Ios Xr
ios_xr
Asyncos
asyncos
Asa 5500
asa_5500
Jabber
jabber
Roomos
roomos

CVEs (6,717)

CVE
VENDORS
PRODUCTS
UPDATED
PUBLISHED
CVSS
7Cisco
FisshIntersoft+4 more
7Ios
PuttySecurenetterm+4 more
Apr 16, 2026
Dec 23, 2002
N/A· v4
N/A· v3
10.0 HIGH· v2
Multiple SSH2 servers and clients do not properly handle lists with empty elements or strings, which may allow remote attackers to cause a denial of service or possibly execute arbitrary code, as demonstrated by the SSHr...Show more
Multiple SSH2 servers and clients do not properly handle lists with empty elements or strings, which may allow remote attackers to cause a denial of service or possibly execute arbitrary code, as demonstrated by the SSHredder SSH protocol test suite.Show less
7Cisco
FisshIntersoft+4 more
7Ios
PuttySecurenetterm+4 more
Apr 16, 2026
Dec 23, 2002
N/A· v4
N/A· v3
10.0 HIGH· v2
Multiple SSH2 servers and clients do not properly handle packets or data elements with incorrect length specifiers, which may allow remote attackers to cause a denial of service or possibly execute arbitrary code, as dem...Show more
Multiple SSH2 servers and clients do not properly handle packets or data elements with incorrect length specifiers, which may allow remote attackers to cause a denial of service or possibly execute arbitrary code, as demonstrated by the SSHredder SSH protocol test suite.Show less
1Cisco
1Catos
Apr 16, 2026
Oct 28, 2002
N/A· v4
N/A· v3
7.1 HIGH· v2
Buffer overflow in the embedded HTTP server for Cisco Catalyst switches running CatOS 5.4 through 7.3 allows remote attackers to cause a denial of service (reset) via a long HTTP request.
1Cisco
1Unity Server
Apr 16, 2026
Oct 28, 2002
N/A· v4
N/A· v3
7.5 HIGH· v2
Cisco Unity 2.x and 3.x uses well-known default user accounts, which could allow remote attackers to gain access and place arbitrary calls.
1Cisco
1Unity Server
Apr 16, 2026
Oct 11, 2002
N/A· v4
N/A· v3
4.6 MEDIUM· v2
The default configuration of Cisco Unity 2.x and 3.x does not block international operator calls in the predefined restriction tables, which could allow authenticated users to place international calls using call forward...Show more
The default configuration of Cisco Unity 2.x and 3.x does not block international operator calls in the predefined restriction tables, which could allow authenticated users to place international calls using call forwarding.Show less
1Cisco
1Vpn Client
Apr 16, 2026
Oct 4, 2002
N/A· v4
N/A· v3
5.0 MEDIUM· v2
Cisco Virtual Private Network (VPN) Client software 2.x.x, and 3.x before 3.6(Rel), when configured with all tunnel mode, can be forced into acknowledging a TCP packet from outside the tunnel.
1Cisco
1Vpn Client
Apr 16, 2026
Oct 4, 2002
N/A· v4
N/A· v3
7.5 HIGH· v2
Cisco Virtual Private Network (VPN) Client software 2.x.x, and 3.x before 3.5.2B, does not generate sufficiently random numbers, which may make it vulnerable to certain attacks such as spoofing.
1Cisco
1Vpn Client
Apr 16, 2026
Oct 4, 2002
N/A· v4
N/A· v3
7.5 HIGH· v2
Cisco Virtual Private Network (VPN) Client software 2.x.x, and 3.x before 3.5.1C, does not properly verify that certificate DN fields match those of the certificate from the VPN Concentrator, which allows remote attacker...Show more
Cisco Virtual Private Network (VPN) Client software 2.x.x, and 3.x before 3.5.1C, does not properly verify that certificate DN fields match those of the certificate from the VPN Concentrator, which allows remote attackers to conduct man-in-the-middle attacks.Show less
1Cisco
1Vpn Client
Apr 16, 2026
Oct 4, 2002
N/A· v4
N/A· v3
4.6 MEDIUM· v2
Cisco Virtual Private Network (VPN) Client software 2.x.x, and 3.x before 3.5.1C, allows local users to use a utility program to obtain the group password.
1Cisco
1Vpn Client
Apr 16, 2026
Oct 4, 2002
N/A· v4
N/A· v3
5.0 MEDIUM· v2
Cisco Virtual Private Network (VPN) Client software 2.x.x and 3.x before 3.0.5 allows remote attackers to cause a denial of service (crash) via TCP packets with source and destination ports of 137 (NETBIOS).
1Cisco
2Vpn 3000 Concentrator Series Software
Vpn 3002 Hardware Client
Apr 16, 2026
Oct 4, 2002
N/A· v4
N/A· v3
5.0 MEDIUM· v2
Cisco VPN 3000 Concentrator 2.2.x, 3.6(Rel), and 3.x before 3.5.5, allows remote attackers to cause a denial of service via (1) malformed or (2) large ISAKMP packets.
1Cisco
2Vpn 3000 Concentrator Series Software
Vpn 3002 Hardware Client
Apr 16, 2026
Oct 4, 2002
N/A· v4
N/A· v3
5.0 MEDIUM· v2
The LAN-to-LAN IPSEC capability for Cisco VPN 3000 Concentrator 2.2.x, and 3.x before 3.5.4, allows remote attackers to cause a denial of service via an incoming LAN-to-LAN connection with an existing security associatio...Show more
The LAN-to-LAN IPSEC capability for Cisco VPN 3000 Concentrator 2.2.x, and 3.x before 3.5.4, allows remote attackers to cause a denial of service via an incoming LAN-to-LAN connection with an existing security association with another device on the remote network, which causes the concentrator to remove the previous connection.Show less
1Cisco
2Vpn 3000 Concentrator Series Software
Vpn 3002 Hardware Client
Apr 16, 2026
Oct 4, 2002
N/A· v4
N/A· v3
5.0 MEDIUM· v2
Cisco VPN 3000 Concentrator 2.2.x, 3.6(Rel), and 3.x before 3.5.5, allows remote attackers to cause a denial of service via a long user name.
1Cisco
2Vpn 3000 Concentrator Series Software
Vpn 3002 Hardware Client
Apr 16, 2026
Oct 4, 2002
N/A· v4
N/A· v3
5.0 MEDIUM· v2
Cisco VPN 3000 Concentrator 2.2.x, and 3.x before 3.5.3, allows remote attackers to cause a denial of service (crash) via a long (1) username or (2) password to the HTML login interface.
1Cisco
2Vpn 3000 Concentrator Series Software
Vpn 3002 Hardware Client
Apr 16, 2026
Oct 4, 2002
N/A· v4
N/A· v3
5.0 MEDIUM· v2
Cisco VPN 3000 Concentrator 2.2.x, and 3.x before 3.5.3, allows remote attackers to obtain potentially sensitive information without authentication by directly accessing certain HTML pages.
1Cisco
2Vpn 3000 Concentrator Series Software
Vpn 3002 Hardware Client
Apr 16, 2026
Oct 4, 2002
N/A· v4
N/A· v3
7.5 HIGH· v2
Cisco VPN 3000 Concentrator 2.2.x, and 3.x before 3.5.3, adds an "HTTPS on Public Inbound (XML-Auto)(forward/in)" rule but sets the protocol to "ANY" when the XML filter configuration is enabled, which ultimately allows...Show more
Cisco VPN 3000 Concentrator 2.2.x, and 3.x before 3.5.3, adds an "HTTPS on Public Inbound (XML-Auto)(forward/in)" rule but sets the protocol to "ANY" when the XML filter configuration is enabled, which ultimately allows arbitrary traffic to pass through the concentrator.Show less
1Cisco
2Vpn 3000 Concentrator Series Software
Vpn 3002 Hardware Client
Apr 16, 2026
Oct 4, 2002
N/A· v4
N/A· v3
7.5 HIGH· v2
Cisco VPN 3000 Concentrator 2.2.x, and 3.x before 3.5.2, allows restricted administrators to obtain certificate passwords that are stored in plaintext in the HTML source code for Certificate Management pages.
1Cisco
2Vpn 3000 Concentrator Series Software
Vpn 3002 Hardware Client
Apr 16, 2026
Oct 4, 2002
N/A· v4
N/A· v3
7.5 HIGH· v2
Cisco VPN 3000 Concentrator 2.2.x, and 3.x before 3.5.1, allows restricted administrators to obtain user passwords that are stored in plaintext in HTML source code.
1Cisco
3Secure Access Control Server
Vpn 3000 Concentrator Series SoftwareVpn 3002 Hardware Client
Apr 16, 2026
Oct 4, 2002
N/A· v4
N/A· v3
5.0 MEDIUM· v2
Cisco VPN 3000 Concentrator before 2.5.2(F), with encryption enabled, allows remote attackers to cause a denial of service (reload) via a Windows-based PPTP client with the "No Encryption" option set.
1Cisco
2Vpn 3000 Concentrator Series Software
Vpn 3002 Hardware Client
Apr 16, 2026
Oct 4, 2002
N/A· v4
N/A· v3
5.0 MEDIUM· v2
Information leaks in Cisco VPN 3000 Concentrator 2.x.x and 3.x.x before 3.5.4 allow remote attackers to obtain potentially sensitive information via the (1) SSH banner, (2) FTP banner, or (3) an incorrect HTTP request.