stunner

STUNNER Stunner is a tool to test and exploit STUN, TURN and TURN over TCP servers. TURN is a protocol mostly used in videoconferencing and audio chats WebRTC. If you find a misconfigured server you can use this tool to open a local socks proxy that relays all traffic via the TURN protocol into t...

CVE-2023-20209

I started looking at Cisco Expressway after I noticed quite a few of them on the internet during Red Team engagements, but never had the time during work to explore the product further. Initially I was looking for an auth bypass to chain into RCE but ran out of time and settled on a post auth RCE...

cisco-security-research

Cisco Security Research Researcher: 0xReadingSteiner Contact: [email protected] Vendor: Cisco Systems, Inc. Vendor Notified: 2026-08-04 Cisco PSIRT, ZDI, SSD Vendor Response: None Why This Exists Independent security research on commercially available Cisco products has identified critical...

Vulnerabilities found in Cisco Expressway Series devices

Cisco has identified several vulnerabilities in the Cisco Expressway Series. These vulnerabilities involve insufficient authorization checks during Mobile and Remote Access provisioning, allowing unauthorized external attackers to gain access to sensitive information. Additionally, there is a...

CVE-2026-76496

As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco Expressway Series software engineering team has conducted a comprehensive internal security review. This review resulted in software hardening releases that address multiple internally discovered...

CVE-2026-76495

As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco Expressway Series software engineering team has conducted a comprehensive internal security review. This review resulted in software hardening releases that address multiple internally discovered...

CVE-2026-76497

As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco Expressway Series software engineering team has conducted a comprehensive internal security review. This review resulted in software hardening releases that address multiple internally discovered...

CVE-2026-76492

As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco Expressway Series software engineering team has conducted a comprehensive internal security review. This review resulted in software hardening releases that address multiple internally discovered...

CVE-2026-76490

As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco Expressway Series software engineering team has conducted a comprehensive internal security review. This review resulted in software hardening releases that address multiple internally discovered...

CVE-2026-76491

As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco Expressway Series software engineering team has conducted a comprehensive internal security review. This review resulted in software hardening releases that address multiple internally discovered...

CVE-2026-76494

As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco Expressway Series software engineering team has conducted a comprehensive internal security review. This review resulted in software hardening releases that address multiple internally discovered...

CVE-2026-76493

As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco Expressway Series software engineering team has conducted a comprehensive internal security review. This review resulted in software hardening releases that address multiple internally discovered...

CVE-2026-76435

A vulnerability in Cisco Expressway Series could allow an unauthenticated, remote attacker to obtain sensitive information from an affected device. This vulnerability is due to insufficient authorization checks of HTTP requests during Mobile and Remote Access MRA provisioning. An attacker could...

CVE-2026-76466

A vulnerability in the database service feature of Cisco Expressway Series could allow an unauthenticated, remote attacker with network access to a Cisco Expressway device to execute arbitrary operating system commands as root. This vulnerability is due to the use of persistent cookies...

EUVD-2026-107360

As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco Expressway Series software engineering team has conducted a comprehensive internal security review. This review resulted in software hardening releases that address multiple internally discovered...

CVE-2026-76497 Cisco Expressway Series Software Hardening Release: October 2026 - Insecure Temporary File Vulnerabilities

As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco Expressway Series software engineering team has conducted a comprehensive internal security review. This review resulted in software hardening releases that address multiple internally discovered...

CVE-2026-76497

The Cisco Expressway Series software is affected by vulnerabilities involving insecure temporary files , categorized under CWE-377 . These issues were identified during an internal security review and are addressed in the October 2026 hardening release . The impact includes potential high integri...

EUVD-2026-107357

As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco Expressway Series software engineering team has conducted a comprehensive internal security review. This review resulted in software hardening releases that address multiple internally discovered...

CVE-2026-76496

The Cisco Expressway Series software is affected by vulnerabilities involving improper link resolutions , categorized under CWE-59 . These issues were identified during an internal security review and are addressed in the October 2026 software hardening releases . The vulnerabilities have a High ...

CVE-2026-76496 Cisco Expressway Series Software Hardening Release: October 2026 - Improper Link Resolution Vulnerabilities

As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco Expressway Series software engineering team has conducted a comprehensive internal security review. This review resulted in software hardening releases that address multiple internally discovered...