Design/Logic Flaw

A vulnerability in Cisco IOS XE Software could allow an authenticated, local attacker with high privileges or an unauthenticated attacker with physical access to the device to open a debugging console. The vulnerability is due to insufficient command authorization restrictions. An attacker could...

Input validation

Multiple vulnerabilities in the fast reload feature of Cisco IOS XE Software running on Cisco Catalyst 3850, Cisco Catalyst 9300, and Cisco Catalyst 9300L Series Switches could allow an authenticated, local attacker to either execute arbitrary code on the underlying operating system, install and...

CVE-2021-1352 Cisco IOS XE Software DECnet Phase IV/OSI Denial of Service Vulnerability

A vulnerability in the DECnet Phase IV and DECnet/OSI protocol processing of Cisco IOS XE Software could allow an unauthenticated, adjacent attacker to cause a denial of service DoS condition on an affected device. The vulnerability is due to insufficient input validation of DECnet traffic that i...

CVE-2021-1352

CVE-2021-1352 affects Cisco IOS XE Software (DECnet Phase IV/OSI) and is caused by insufficient input validation of DECnet traffic, enabling an unauthenticated, adjacent attacker to trigger a device reload and a DoS. The vulnerability applies to DECnet-enabled Cisco IOS XE devices and is exploite...

CVE-2021-1375

CVE-2021-1375 concerns multiple vulnerabilities in the fast reload feature of Cisco IOS XE on Catalyst 3850, 9300, and 9300L Series Switches. The flaws arise from improper checks in system boot routines, potentially allowing an authenticated local attacker with privileged CLI access to execute ar...

CVE-2021-1446

A vulnerability in the DNS application layer gateway ALG functionality used by Network Address Translation NAT in Cisco IOS XE Software could allow an unauthenticated, remote attacker to cause an affected device to reload. The vulnerability is due to a logic error that occurs when an affected...

CVE-2021-1442

A vulnerability in a diagnostic command for the Plug-and-Play PnP subsystem of Cisco IOS XE Software could allow an authenticated, local attacker to elevate privileges to the level of an Administrator user level 15 on an affected device. The vulnerability is due to insufficient protection of...

CVE-2021-1403

A vulnerability in the web UI feature of Cisco IOS XE Software could allow an unauthenticated, remote attacker to conduct a cross-site WebSocket hijacking CSWSH attack and cause a denial of service DoS condition on an affected device. This vulnerability is due to insufficient HTTP protections in...

CVE-2021-1384

A vulnerability in Cisco IOx application hosting environment of Cisco IOS XE Software could allow an authenticated, remote attacker to inject commands into the underlying operating system as the root user. This vulnerability is due to incomplete validation of fields in the application packages...

CVE-2021-1390

A vulnerability in one of the diagnostic test CLI commands of Cisco IOS XE Software could allow an authenticated, local attacker to execute arbitrary code on an affected device. To exploit this vulnerability, the attacker would need to have valid user credentials at privilege level 15. This...

CVE-2021-1391

A vulnerability in the dragonite debugger of Cisco IOS XE Software could allow an authenticated, local attacker to escalate from privilege level 15 to root privilege. The vulnerability is due to the presence of development testing and verification scripts that remained on the device. An attacker...

Cross site scripting

A vulnerability in the web UI feature of Cisco IOS XE Software could allow an unauthenticated, remote attacker to conduct a cross-site WebSocket hijacking CSWSH attack and cause a denial of service DoS condition on an affected device. This vulnerability is due to insufficient HTTP protections in...

CVE-2021-1384 Cisco IOx for IOS XE Software Command Injection Vulnerability

A vulnerability in Cisco IOx application hosting environment of Cisco IOS XE Software could allow an authenticated, remote attacker to inject commands into the underlying operating system as the root user. This vulnerability is due to incomplete validation of fields in the application packages...

CVE-2021-1384

Summary of vulnerability details : CVE-2021-1384 affects Cisco IOx in Cisco IOS XE Software, enabling an authenticated, remote attacker to inject commands into the underlying OS as root. The root cause is incomplete validation of fields in application packages loaded onto IOx, exploitable by load...

CVE-2021-1390 Cisco IOS XE Software Local Privilege Escalation Vulnerability

A vulnerability in one of the diagnostic test CLI commands of Cisco IOS XE Software could allow an authenticated, local attacker to execute arbitrary code on an affected device. To exploit this vulnerability, the attacker would need to have valid user credentials at privilege level 15. This...

CVE-2021-1390

CVE-2021-1390 is a Cisco IOS XE Local Privilege Escalation vulnerability. A locally authenticated attacker with high privileges (privilege level 15) can trigger a logic error while using certain diagnostic test CLI commands, allowing modification of run-time memory and potential arbitrary code ex...

CVE-2021-1403

CVE-2021-1403 affects Cisco IOS XE Software web UI. The issue arises from insufficient HTTP protections in the web UI, enabling an unauthenticated, remote attacker to perform a cross-site WebSocket hijacking (CSWSH) attack. Exploitation requires a user to click a crafted link, and a successful ex...

CVE-2021-1403 Cisco IOS XE Software Web UI Cross-Site WebSocket Hijacking Vulnerability

A vulnerability in the web UI feature of Cisco IOS XE Software could allow an unauthenticated, remote attacker to conduct a cross-site WebSocket hijacking CSWSH attack and cause a denial of service DoS condition on an affected device. This vulnerability is due to insufficient HTTP protections in...

CVE-2021-1451

The CVE-2021-1451 issue affects Cisco IOS XE Software Easy Virtual Switching System (VSS) on Cisco Catalyst 4500/4500-X switches. The root cause is improper boundary checks in Easy VSS protocol packets, allowing an unauthenticated, remote attacker to send crafted packets to UDP port 5500 while th...

Cisco IOS and IOS XE Software Privilege Escalation Vulnerability

A vulnerability in the dragonite debugger of Cisco IOS Software and Cisco IOS XE Software could allow an authenticated, local attacker to escalate from privilege level 15 to root privilege. The vulnerability is due to the presence of development testing and verification scripts that remained on t...