Alertas de Seguridad de la Información

M Crítico vulnerabilidad

14/09/2026

[CVE-2026-76441] As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco Secure Em…

As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco Secure Email Gateway and Cisco Secure Email and Web Manager engineering team has conducted a comprehensive internal security review. This review resulted in software hardening releases that address multiple internally discovered vulnerabilities. The vulnerabilities tracked by CVE-2026-76441 are related to…

nvdcriticovulnerabilidad CVSS 9.8 NVD

M Alto vulnerabilidad

14/09/2026

[CVE-2026-76442] As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco Secure Em…

As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco Secure Email Gateway and Cisco Secure Email and Web Manager engineering team has conducted a comprehensive internal security review. This review resulted in software hardening releases that address multiple internally discovered vulnerabilities. The vulnerabilities tracked by CVE-2026-76442 are related to…

nvdaltovulnerabilidad CVSS 7.5 NVD

M Crítico vulnerabilidad

14/09/2026

[CVE-2026-76443] As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco Secure Em…

As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco Secure Email Gateway and Cisco Secure Email and Web Manager engineering team has conducted a comprehensive internal security review. This review resulted in software hardening releases that address multiple internally discovered vulnerabilities. The vulnerabilities tracked by CVE-2026-76443 are related to…

nvdcriticovulnerabilidad CVSS 9.8 NVD

M Crítico vulnerabilidad

14/09/2026

[CVE-2026-20353] As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco Secure Em…

As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco Secure Email Gateway and Cisco Secure Email and Web Manager engineering team has conducted a comprehensive internal security review. This review resulted in software hardening releases that address multiple internally discovered vulnerabilities. The vulnerabilities tracked by CVE-2026-20353 are related to…

nvdcriticovulnerabilidad CVSS 9.8 NVD

M Alto vulnerabilidad

08/09/2026

[CVE-2026-20293] A vulnerability in the Unified Extensible Firmware Interface (UEFI) Shell implementation of Cisco UC…

A vulnerability in the Unified Extensible Firmware Interface (UEFI) Shell implementation of Cisco UCS Servers and UCS-based appliances could allow an authenticated attacker with valid credentials for a user account with the role of user or admin or an unauthenticated attacker with physical access to an affected device to bypass UEFI Secure Boot validation checks and execute unauthorized softw…

nvdaltovulnerabilidad CVSS 7.1 NVD

M Alto vulnerabilidad

02/09/2026

[CVE-2026-20277] As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco IOS XR So…

As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco IOS XR Software engineering team has conducted a comprehensive internal security review. This review resulted in a software hardening releases that address multiple internally discovered vulnerabilities. The vulnerabilities tracked by CVE-2026-20277 are related to protection mechanism failure issues that …

nvdaltovulnerabilidad CVSS 8.2 NVD

M Alto vulnerabilidad

02/09/2026

[CVE-2026-20278] As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco IOS XR So…

As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco IOS XR Software engineering team has conducted a comprehensive internal security review. This review resulted in a software hardening releases that address multiple internally discovered vulnerabilities. The vulnerabilities tracked by CVE-2026-20278 are related to improper neutralization issues that are g…

nvdaltovulnerabilidad CVSS 8.8 NVD

M Crítico vulnerabilidad

02/09/2026

[CVE-2026-20279] As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco IOS XR So…

As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco IOS XR Software engineering team has conducted a comprehensive internal security review. This review resulted in a software hardening releases that address multiple internally discovered vulnerabilities. The vulnerabilities tracked by CVE-2026-20279 are related to improper access control issues that are g…

nvdcriticovulnerabilidad CVSS 9.8 NVD

M Alto vulnerabilidad

02/09/2026

[CVE-2026-20280] As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco IOS …

As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco IOS XR Software engineering team has conducted a comprehensive internal security review. This review resulted in a software hardening releases that address multiple internally discovered vulnerabilities. The vulnerabilities tracked by CVE-2026-20280 are related to improper checking or handling of exc…

nvdaltovulnerabilidad CVSS 8.8 NVD

M Alto vulnerabilidad

02/09/2026

[CVE-2026-20281] A vulnerability in Cisco Desk Phone 9800 Series, Cisco IP Phone 7800 and 8800 Series, and Cisco Vide…

A vulnerability in Cisco Desk Phone 9800 Series, Cisco IP Phone 7800 and 8800 Series, and Cisco Video Phone 8875 that are running Cisco Session Initiation Protocol (SIP) Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to improper memory management when an affected device processes HTTP packets…

nvdaltovulnerabilidad CVSS 7.5 NVD

M Crítico vulnerabilidad

02/09/2026

[CVE-2026-20274] As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco IOS XR So…

As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco IOS XR Software engineering team has conducted a comprehensive internal security review. This review resulted in a software hardening releases that address multiple internally discovered vulnerabilities. The vulnerabilities tracked by CVE-2026-20274 are related to improper resource control issues that are…

nvdcriticovulnerabilidad CVSS 9.8 NVD

M Alto vulnerabilidad

02/09/2026

[CVE-2026-20275] As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco IOS XR So…

As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco IOS XR Software engineering team has conducted a comprehensive internal security review. This review resulted in a software hardening releases that address multiple internally discovered vulnerabilities. The vulnerabilities tracked by CVE-2026-20275 are related to incorrect calculation issues that are gro…

nvdaltovulnerabilidad CVSS 8.8 NVD

M Alto vulnerabilidad

02/09/2026

[CVE-2026-20276] As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco IOS XR So…

As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco IOS XR Software engineering team has conducted a comprehensive internal security review. This review resulted in a software hardening releases that address multiple internally discovered vulnerabilities. The vulnerabilities tracked by CVE-2026-20276 are related to insufficient control flow management issu…

nvdaltovulnerabilidad CVSS 8.6 NVD

M Crítico vulnerabilidad

02/09/2026

[CVE-2026-20212] A vulnerability in the Silicon One integration for Cisco Nexus 9000 Series Switches could allow an u…

A vulnerability in the Silicon One integration for Cisco Nexus 9000 Series Switches could allow an unauthenticated, remote attacker to execute code with root privileges. This vulnerability exists because TCP ports 43210 and 43211 are accessible in the default Layer 3 (L3) virtual routing and forwarding (VRF). A successful exploit could allow the attacker to connect to an affected device an…

nvdcriticovulnerabilidad CVSS 9.8 NVD

M Alto vulnerabilidad

19/08/2026

[CVE-2026-76389] In Cisco Talos Intelligence for Enterprise Security Cloud versions below 1.0.3, a user that holds a …

In Cisco Talos Intelligence for Enterprise Security Cloud versions below 1.0.3, a user that holds a role with the get_talos_enrichment capability could send a crafted request to the Talos intelligence enrichment Representational State Transfer (REST) API endpoint and cause the instance to make an outbound request to an attacker-controlled server. The request could expose tokens that compromise all…

nvdaltovulnerabilidad CVSS 8.8 NVD

M Crítico vulnerabilidad

19/08/2026

[CVE-2026-20318] As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco Secure Wo…

As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco Secure Workload engineering team has conducted a comprehensive internal security review. This review resulted in a software hardening release that addresses multiple internally discovered vulnerabilities. The vulnerabilities tracked by CVE-2026-20318 are related to improper input validation issues that ar…

nvdcriticovulnerabilidad CVSS 9.6 NVD

M Alto vulnerabilidad

19/08/2026

[CVE-2026-20319] As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco Secure Wo…

As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco Secure Workload engineering team has conducted a comprehensive internal security review. This review resulted in a software hardening release that addresses multiple internally discovered vulnerabilities. The vulnerabilities tracked by CVE-2026-20319 are related to buffer management issues that are groupe…

nvdaltovulnerabilidad CVSS 7.5 NVD

M Alto vulnerabilidad

19/08/2026

[CVE-2026-20320] A vulnerability in the Open Client Interface (OCI) XML Parser of Cisco BroadWorks could allow an una…

A vulnerability in the Open Client Interface (OCI) XML Parser of Cisco BroadWorks could allow an unauthenticated, remote attacker to read sensitive configuration information on an affected system. This vulnerability exists because XML entries are improperly parsed due to external entity resolution being allowed by default. An attacker could exploit this vulnerability by sending a crafted XML me…

nvdaltovulnerabilidad CVSS 7.5 NVD

M Crítico vulnerabilidad

19/08/2026

[CVE-2026-20357] As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco Crosswork…

As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco Crosswork engineering team has conducted a comprehensive internal security review. This review resulted in a software hardening release that addresses multiple internally discovered vulnerabilities. The vulnerabilities tracked by CVE-2026-20357 are related to missing authentication for critical function i…

nvdcriticovulnerabilidad CVSS 10.0 NVD

M Crítico vulnerabilidad

19/08/2026

[CVE-2026-20358] As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco Crosswork…

As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco Crosswork engineering team has conducted a comprehensive internal security review. This review resulted in a software hardening release that addresses multiple internally discovered vulnerabilities. The vulnerabilities tracked by CVE-2026-20358 are related to external control of the file system issues tha…

nvdcriticovulnerabilidad CVSS 10.0 NVD