Multiple stack-based buffer overflows in Command EXEC in Cisco IOS allow local users to gain privileges via unspecified vectors, aka (1) PSIRT-0474975756 and (2) PSIRT-0388256465. NOTE: as of 20071016, the only disclosure is a vague pre-advisory with no actionable information. However, since it is from a well-known researcher, it is being assigned a CVE identifier for tracking purposes.
Max CVSS
6.9
EPSS Score
0.04%
Published
2007-10-18
Updated
2008-11-15
The TCL interpreter in Cisco IOS 15.2 does not properly maintain the vty state, which allows local users to gain privileges by starting a session very soon after a TCL script execution, aka Bug ID CSCuq24202.
Max CVSS
6.9
EPSS Score
0.04%
Published
2015-06-13
Updated
2017-01-04
Unspecified vulnerability in Cisco IOS 12.0 through 12.4 allows remote attackers to execute arbitrary code via a malformed SIP packet, aka CSCsi80749.
Max CVSS
6.8
EPSS Score
13.78%
Published
2007-08-09
Updated
2017-09-29
The Temporal Key Integrity Protocol (TKIP) implementation in unspecified Cisco products and other vendors' products, as used in WPA and WPA2 on Wi-Fi networks, has insufficient countermeasures against certain crafted and replayed packets, which makes it easier for remote attackers to decrypt packets from an access point (AP) to a client and spoof packets from an AP to a client, and conduct ARP poisoning attacks or other attacks, as demonstrated by tkiptun-ng.
Max CVSS
6.8
EPSS Score
0.86%
Published
2008-11-25
Updated
2008-12-03
Cross-site request forgery (CSRF) vulnerability in the HTTP server in Cisco IOS 12.4(23) allows remote attackers to execute arbitrary commands, as demonstrated by executing the hostname command with a level/15/configure/-/hostname request.
Max CVSS
6.8
EPSS Score
0.12%
Published
2009-02-06
Updated
2018-10-11
Cisco IOS 12.0 through 12.4, when IP-based tunnels and the Cisco Express Forwarding feature are enabled, allows remote attackers to cause a denial of service (device reload) via a malformed packet that is not properly handled during switching from one tunnel to a second tunnel, aka Bug IDs CSCsh97579 and CSCsq31776.
Max CVSS
6.8
EPSS Score
0.62%
Published
2009-09-28
Updated
2009-10-01
CallManager Express (CME) on Cisco IOS before 15.0(1)XA allows remote authenticated users to cause a denial of service (device crash) by using an extension mobility (EM) phone to interact with the menu for SNR number changes, aka Bug ID CSCta63555.
Max CVSS
6.8
EPSS Score
0.23%
Published
2011-01-07
Updated
2017-08-17
Cisco IOS before 12.2(33)SXI allows remote authenticated users to cause a denial of service (device reboot).
Max CVSS
6.8
EPSS Score
0.10%
Published
2017-09-25
Updated
2017-10-03
Cisco IOS before 15.1(1)SY1 allows remote authenticated users to cause a denial of service (device reload) by establishing a VPN session and then sending malformed IKEv2 packets, aka Bug ID CSCub39268.
Max CVSS
6.8
EPSS Score
0.11%
Published
2014-04-23
Updated
2021-10-05
Cisco IOS before 15.2(4)S6 does not initialize an unspecified variable, which might allow remote authenticated users to cause a denial of service (CPU consumption, watchdog timeout, crash) by walking specific SNMP objects.
Max CVSS
6.8
EPSS Score
0.11%
Published
2017-08-02
Updated
2017-08-04
Cisco IOS before 12.2(50)SY1 allows remote authenticated users to cause a denial of service (memory consumption) via a sequence of VTY management sessions (aka exec sessions), aka Bug ID CSCtn43662.
Max CVSS
6.8
EPSS Score
0.12%
Published
2014-04-23
Updated
2014-04-23
Unspecified vulnerability in Cisco IOS before 15.3(2)T on AS5400 devices allows remote authenticated users to cause a denial of service (spurious errors) via unknown vectors, aka Bug ID CSCub61009.
Max CVSS
6.8
EPSS Score
0.12%
Published
2014-04-23
Updated
2014-04-23
The generic input/output control implementation in Cisco IOS does not properly manage buffers, which allows remote authenticated users to cause a denial of service (device reload) by sending many SNMP requests at the same time, aka Bug ID CSCub41105.
Max CVSS
6.8
EPSS Score
0.09%
Published
2013-04-24
Updated
2013-04-24
Cisco IOS on Catalyst 3750X switches has default Service Module credentials, which makes it easier for local users to gain privileges via a Service Module login, aka Bug ID CSCue92286.
Max CVSS
6.8
EPSS Score
0.04%
Published
2013-10-25
Updated
2013-10-25
The SSL VPN implementation in Cisco IOS 15.3(1)T2 and earlier allows remote authenticated users to cause a denial of service (interface queue wedge) via crafted DTLS packets in an SSL session, aka Bug IDs CSCuh97409 and CSCud90568.
Max CVSS
6.8
EPSS Score
0.09%
Published
2013-11-18
Updated
2013-11-19
Cisco IOS allows remote authenticated users to cause a denial of service (device reload) via malformed IPsec packets, aka Bug ID CSCui79745.
Max CVSS
6.8
EPSS Score
0.42%
Published
2014-06-25
Updated
2017-01-12
The RADIUS implementation in Cisco IOS and IOS XE allows remote attackers to cause a denial of service (device reload) via crafted IPv6 Attributes in Access-Accept packets, aka Bug IDs CSCur84322 and CSCur27693.
Max CVSS
6.8
EPSS Score
0.19%
Published
2015-03-06
Updated
2015-11-02
Cisco IOS 15.5S and IOS XE allow remote authenticated users to cause a denial of service (device crash) by leveraging knowledge of the RADIUS secret and sending crafted RADIUS packets, aka Bug ID CSCur21348.
Max CVSS
6.8
EPSS Score
0.11%
Published
2015-04-29
Updated
2015-09-10
Cisco IOS 15.5(3)M and 15.6(1)T0a on Cisco 1000 Connected Grid routers allows remote authenticated users to cause a denial of service (device reload) via an SNMP request for unspecified BRIDGE MIB OIDs, aka Bug ID CSCux89878.
Max CVSS
6.8
EPSS Score
0.11%
Published
2016-02-17
Updated
2016-12-06
The Cisco Application-hosting Framework (CAF) component in Cisco IOS 15.6(1)T1 and IOS XE, when the IOx feature set is enabled, allows remote authenticated users to read arbitrary files via unspecified vectors, aka Bug ID CSCuy19856.
Max CVSS
6.8
EPSS Score
0.10%
Published
2016-09-24
Updated
2017-07-30
A vulnerability in the Link Layer Discovery Protocol (LLDP) message parser of Cisco IOS Software and Cisco IOS XE Software could allow an attacker to trigger a reload of an affected device, resulting in a denial of service (DoS) condition. This vulnerability is due to improper initialization of a buffer. An attacker could exploit this vulnerability via any of the following methods: An authenticated, remote attacker could access the LLDP neighbor table via either the CLI or SNMP while the device is in a specific state. An unauthenticated, adjacent attacker could corrupt the LLDP neighbor table by injecting specific LLDP frames into the network and then waiting for an administrator of the device or a network management system (NMS) managing the device to retrieve the LLDP neighbor table of the device via either the CLI or SNMP. An authenticated, adjacent attacker with SNMP read-only credentials or low privileges on the device CLI could corrupt the LLDP neighbor table by injecting specific LLDP frames into the network and then accessing the LLDP neighbor table via either the CLI or SNMP. A successful exploit could allow the attacker to cause the affected device to crash, resulting in a reload of the device.
Max CVSS
6.8
EPSS Score
0.11%
Published
2021-09-23
Updated
2023-05-22
A vulnerability in the IPv6 DHCP (DHCPv6) client module of Cisco Adaptive Security Appliance (ASA) Software, Cisco Firepower Threat Defense (FTD) Software, Cisco IOS Software, and Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to insufficient validation of DHCPv6 messages. An attacker could exploit this vulnerability by sending crafted DHCPv6 messages to an affected device. A successful exploit could allow the attacker to cause the device to reload, resulting in a DoS condition. Note: To successfully exploit this vulnerability, the attacker would need to either control the DHCPv6 server or be in a man-in-the-middle position.
Max CVSS
6.8
EPSS Score
0.17%
Published
2023-03-23
Updated
2023-08-16
A vulnerability in the IKEv1 fragmentation code of Cisco IOS Software and Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause a heap overflow, resulting in an affected device reloading. This vulnerability exists because crafted, fragmented IKEv1 packets are not properly reassembled. An attacker could exploit this vulnerability by sending crafted UDP packets to an affected system. A successful exploit could allow the attacker to cause the affected device to reload, resulting in a DoS condition. Note: Only traffic that is directed to the affected system can be used to exploit this vulnerability. This vulnerability can be triggered by IPv4 and IPv6 traffic.
Max CVSS
6.8
EPSS Score
0.04%
Published
2024-03-27
Updated
2024-03-28
A vulnerability in the filesystem of Cisco IOS XE Software could allow an authenticated, local attacker within the IOx Guest Shell to modify the namespace container protections on an affected device. The vulnerability is due to insufficient file permissions. An attacker could exploit this vulnerability by modifying files that they should not have access to. A successful exploit could allow the attacker to remove container protections and perform file actions outside the namespace of the container.
Max CVSS
6.7
EPSS Score
0.04%
Published
2019-09-25
Updated
2020-10-08

CVE-2023-20109

Known exploited
A vulnerability in the Cisco Group Encrypted Transport VPN (GET VPN) feature of Cisco IOS Software and Cisco IOS XE Software could allow an authenticated, remote attacker who has administrative control of either a group member or a key server to execute arbitrary code on an affected device or cause the device to crash. This vulnerability is due to insufficient validation of attributes in the Group Domain of Interpretation (GDOI) and G-IKEv2 protocols of the GET VPN feature. An attacker could exploit this vulnerability by either compromising an installed key server or modifying the configuration of a group member to point to a key server that is controlled by the attacker. A successful exploit could allow the attacker to execute arbitrary code and gain full control of the affected system or cause the affected system to reload, resulting in a denial of service (DoS) condition. For more information, see the Details ["#details"] section of this advisory.
Max CVSS
6.6
EPSS Score
0.75%
Published
2023-09-27
Updated
2024-01-25
CISA KEV Added
2023-10-10
78 vulnerabilities found
1 2 3 4
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