Tag: cisco
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Attackers bring their own passwords to Cisco and Palo Alto VPNs
Tags: authentication, cisco, credentials, data-breach, endpoint, infrastructure, login, malicious, mfa, password, threat, vpnBrute-forcing Cisco’s SSL VPN follows: Just a day after the GlobalProtect surge, the same actor infrastructure pivoted to Cisco’s SSL VPN endpoints, with the same TCP fingerprint and hosting provider IP space. GreyNoise saw the number of unique attacking IPs jump from a typical daily baseline of fewer than 200 to over 1200, signalling a…
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Attackers bring their own passwords to Cisco and Palo Alto VPNs
Tags: authentication, cisco, credentials, data-breach, endpoint, infrastructure, login, malicious, mfa, password, threat, vpnBrute-forcing Cisco’s SSL VPN follows: Just a day after the GlobalProtect surge, the same actor infrastructure pivoted to Cisco’s SSL VPN endpoints, with the same TCP fingerprint and hosting provider IP space. GreyNoise saw the number of unique attacking IPs jump from a typical daily baseline of fewer than 200 to over 1200, signalling a…
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China-linked APT UAT-9686 is targeting Cisco Secure Email Gateway and Secure Email and Web Manager
Cisco disclosed a critical zero-day (CVE-2025-20393) in Secure Email Gateway and Secure Email and Web Manager, actively exploited by a China-linked group. Cisco disclosed a critical zero-day, tracked as CVE-2025-20393, in Secure Email Gateway and Secure Email/Web Manager, which is actively exploited by a China-linked threat group. Cisco reported a December 10 campaign targeting certain…
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Chinese Hackers Exploited a Zero-Day in Cisco Email Security Systems
Cisco disclosed that a China-linked hacking group exploited a previously unknown vulnerability in its email security products, allowing attackers to compromise systems that sit at the center of enterprise email traffic. The flaw affected Cisco Secure Email Gateway and Secure Email and Web Manager appliances running AsyncOS and was actively exploited before public disclosure. The……
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Chinese Hackers Exploited a Zero-Day in Cisco Email Security Systems
Cisco disclosed that a China-linked hacking group exploited a previously unknown vulnerability in its email security products, allowing attackers to compromise systems that sit at the center of enterprise email traffic. The flaw affected Cisco Secure Email Gateway and Secure Email and Web Manager appliances running AsyncOS and was actively exploited before public disclosure. The……
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Chinese Hackers Targeting Cisco Email Gateways
Cisco Talos Attributes Campaign to UAT-9686. Likely Chinese nation-state hackers are exploiting an unpatched flaw in Cisco email appliances as part of an ongoing campaign to gain persistent access. Hackers have been exploiting since mid-November a zero-day in the Cisco Secure Email Gateway and Cisco Secure Email and Web Manager. First seen on govinfosecurity.com Jump…
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Cisco customers hit by fresh wave of zero-day attacks from China-linked APT
Cisco has yet to release a patch for the actively exploited vulnerability, and attacks have been underway since at least late November. First seen on cyberscoop.com Jump to article: cyberscoop.com/cisco-zero-day-attacks-china-apt/
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New password spraying attacks target Cisco, PAN VPN gateways
An automated campaign is targeting multiple VPN platforms, with credential-based attacks being observed on Palo Alto Networks GlobalProtect and Cisco SSL VPN. First seen on bleepingcomputer.com Jump to article: www.bleepingcomputer.com/news/security/new-password-spraying-attacks-target-cisco-pan-vpn-gateways/
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China-linked hackers exploit insecure setting in Cisco security products
The company urged customers to immediately reconfigure affected products. First seen on cybersecuritydive.com Jump to article: www.cybersecuritydive.com/news/cisco-china-cyberattacks-asyncos-configuration/808258/
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Surge of credential-based hacking targets Palo Alto Networks GlobalProtect
After weeks of unusual scanning activity, the same campaign took aim at Cisco SSL VPNs. First seen on cybersecuritydive.com Jump to article: www.cybersecuritydive.com/news/credential-based-hacking-palo-alto-networks/808269/
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Chinese attackers exploiting zero-day to target Cisco email security products
Chinese hackers have been exploiting a vulnerability in a popular Cisco email management tool since late November, the company said in an advisory. First seen on therecord.media Jump to article: therecord.media/chinese-attackers-zero-day
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Cisco says China-linked hackers exploiting insecure setting in security products
The company urged customers to immediately reconfigure affected products. First seen on cybersecuritydive.com Jump to article: www.cybersecuritydive.com/news/cisco-china-cyberattacks-asyncos-configuration/808258/
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Cisco confirms zero-day exploitation of Secure Email products
Rebuild guidance and operational tradeoffs: Cisco has said that wiping and rebuilding appliances is currently required in cases where compromise has been confirmed.”From a security standpoint, it is indeed the right call,” Tyagi said. “When there’s a risk that attackers have embedded themselves deep in a system, patching alone won’t solve the issue. Rebuilding is…
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Cisco confirms zero-day exploitation of Secure Email products
Rebuild guidance and operational tradeoffs: Cisco has said that wiping and rebuilding appliances is currently required in cases where compromise has been confirmed.”From a security standpoint, it is indeed the right call,” Tyagi said. “When there’s a risk that attackers have embedded themselves deep in a system, patching alone won’t solve the issue. Rebuilding is…
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Backdoors eingeschleust: Chinesische Hacker kapern seit Wochen Cisco-Systeme
Angreifer aus China schleusen über eine Zero-Day-Lücke in Cisco AsyncOS Malware auf anfällige Appliances. Ein Patch ist noch nicht in Sicht. First seen on golem.de Jump to article: www.golem.de/news/ungepatchte-sicherheitsluecke-cisco-systeme-werden-seit-wochen-attackiert-2512-203379.html
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U.S. CISA adds Cisco, SonicWall, and ASUS flaws to its Known Exploited Vulnerabilities catalog
U.S. Cybersecurity and Infrastructure Security Agency (CISA) adds Cisco, SonicWall, and ASUS flaws to its Known Exploited Vulnerabilities catalog. The U.S. Cybersecurity and Infrastructure Security Agency (CISA) added Apple and Gladinet CentreStack and Triofox flaws to its Known Exploited Vulnerabilities (KEV) catalog. Below are the flaws added to the catalog: Cisco reported a December 10 campaign…
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U.S. CISA adds Cisco, SonicWall, and ASUS flaws to its Known Exploited Vulnerabilities catalog
U.S. Cybersecurity and Infrastructure Security Agency (CISA) adds Cisco, SonicWall, and ASUS flaws to its Known Exploited Vulnerabilities catalog. The U.S. Cybersecurity and Infrastructure Security Agency (CISA) added Apple and Gladinet CentreStack and Triofox flaws to its Known Exploited Vulnerabilities (KEV) catalog. Below are the flaws added to the catalog: Cisco reported a December 10 campaign…
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Chinese Hackers Breach Cisco’s Email Security Systems
The Chinese threat group, tracked as UAT-9686, has deployed a collection of custom-built hacking tools to maintain persistent access to compromised systems. The post Chinese Hackers Breach Cisco’s Email Security Systems appeared first on TechRepublic. First seen on techrepublic.com Jump to article: www.techrepublic.com/article/news-cisco-email-security-breach/
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Chinese Hackers Breach Cisco’s Email Security Systems
The Chinese threat group, tracked as UAT-9686, has deployed a collection of custom-built hacking tools to maintain persistent access to compromised systems. The post Chinese Hackers Breach Cisco’s Email Security Systems appeared first on TechRepublic. First seen on techrepublic.com Jump to article: www.techrepublic.com/article/news-cisco-email-security-breach/
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Ungepatchte Sicherheitslücke: Chinesische Hacker kapern seit Wochen Cisco-Systeme
Angreifer aus China schleusen über eine Zero-Day-Lücke in Cisco AsyncOS Malware auf anfällige Appliances. Ein Patch ist noch nicht in Sicht. First seen on golem.de Jump to article: www.golem.de/news/ungepatchte-sicherheitsluecke-cisco-systeme-werden-seit-wochen-attackiert-2512-203379.html
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Cisco Warns of Active Cyberattack Exploiting Critical AsyncOS Vulnerability
Cisco has identified an ongoing cyberattack campaign exploiting vulnerabilities in a subset of its appliances running Cisco AsyncOS Software. The attack specifically affects Cisco Secure Email Gateway and Cisco Secure Email and Web Manager appliances, allowing threat actors to execute arbitrary commands with root privileges. This campaign has been tracked under CVE-2025-20393 and has been classified as critical with a CVSS 10.0 rating. First seen on thecyberexpress.com…
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Ungepatchte Sicherheitslücke: Cisco-Systeme werden seit Wochen attackiert
Angreifer aus China schleusen über eine Zero-Day-Lücke in Cisco AsyncOS Malware auf anfällige Appliances. Ein Patch ist noch nicht in Sicht. First seen on golem.de Jump to article: www.golem.de/news/ungepatchte-sicherheitsluecke-cisco-systeme-werden-seit-wochen-attackiert-2512-203379.html
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Hackers Actively Target Cisco and Palo Alto VPN Gateways to Steal Login Credentials
Tags: attack, authentication, breach, cisco, credentials, cyber, cybersecurity, exploit, hacker, login, network, service, vpnCybersecurity researchers at GreyNoise have identified a large-scale, coordinated campaign targeting enterprise VPN authentication systems. The attackers are systematically attempting to breach Cisco SSL VPN and Palo Alto Networks GlobalProtect services through credential-based attacks rather than exploiting specific vulnerabilities. The campaign activity was observed during mid-December across a concentrated two-day period, revealing a sophisticated approach…
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Cisco AsyncOS 0-Day Allows Remote Execution of System Commands
Cisco Talos has uncovered an active campaign exploiting a zero-day vulnerability in Cisco AsyncOS Software, affecting Cisco Secure Email Gateway and Cisco Secure Email and Web Manager. The security flaw enables attackers to execute system-level commands remotely and deploy sophisticated backdoors on compromised systems. The threat actor behind this campaign, tracked as UAT-9686, is assessed…
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Cisco AsyncOS 0-Day Allows Remote Execution of System Commands
Cisco Talos has uncovered an active campaign exploiting a zero-day vulnerability in Cisco AsyncOS Software, affecting Cisco Secure Email Gateway and Cisco Secure Email and Web Manager. The security flaw enables attackers to execute system-level commands remotely and deploy sophisticated backdoors on compromised systems. The threat actor behind this campaign, tracked as UAT-9686, is assessed…
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Cisco Warns of Active Attacks Exploiting Unpatched 0-Day in AsyncOS Email Security Appliances
Cisco has alerted users of a maximum-severity zero-day flaw in Cisco AsyncOS software that has been actively exploited by a China-nexus advanced persistent threat (APT) actor codenamed UAT-9686 in attacks targeting Cisco Secure Email Gateway and Cisco Secure Email and Web Manager.The networking equipment major said it became aware of the intrusion campaign on December…
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Attacks pummeling Cisco AsyncOS 0-day since late November
No timeline for a patch First seen on theregister.com Jump to article: www.theregister.com/2025/12/17/attacks_pummeling_cisco_0day/
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Cisco, SonicWall Disclose New Attacks Exploiting Zero-Day Flaws
Zero-day vulnerabilities in Cisco and SonicWall products have been exploited in new cyberattack campaigns, the vendors disclosed Wednesday. First seen on crn.com Jump to article: www.crn.com/news/security/2025/cisco-sonicwall-disclose-new-attacks-exploiting-zero-day-flaws
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Libbiosig, Grassroot DiCoM, Smallstep step-ca vulnerabilities
Cisco Talos’ Vulnerability Discovery & Research team recently disclosed vulnerabilities in Biosig Project Libbiosig, Grassroot DiCoM, and Smallstep step-ca.The vulnerabilities mentioned in this blog post have been patched by their respective vendors, all in adherence to Cisco’s third-party vulnerability disclosure policy, except for Grassroot, as the First seen on blog.talosintelligence.com Jump to article: blog.talosintelligence.com/libbiosig-grassroot-dicom-smallstep-step-ca-vulnerabilities/
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Cisco email security appliances rooted and backdoored via still unpatched zero-day
A suspected Chinese-nexus threat group has been compromising Cisco email security devices and planting backdoors and log-purging tools on them since at least late November … First seen on helpnetsecurity.com Jump to article: www.helpnetsecurity.com/2025/12/17/cisco-secure-email-cve-2025-20393/