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Cisco has released security fixes to address multiple security flaws, including a critical bug, that could be exploited by a threat actor to take control of an affected system or cause a denial-of service (DoS) condition. The most severe of the issues is CVE-2023-20238, which has the maximum CVSS severity rating of 10.0. It’s described as an authentication bypass flaw in the Cisco BroadWorks Application Delivery Platform and Cisco BroadWorks Xtended Services Platform. Successful exploitation of the vulnerability -- a weakness in the single sign-on (SSO) implementation and discovered during internal testing -- could allow an unauthenticated, remote attacker to forge the credentials required to access an affected system. “This vulnerability is due to the method used to validate SSO tokens,” Cisco  said . “An attacker could exploit this vulnerability by authenticating to the application with forged credentials. A successful exploit could allow the attacker to commit toll fraud or ...

Amazon Threat Intelligence is warning of an active Interlock ransomware campaign that's exploiting a recently disclosed critical security flaw in Cisco Secure Firewall Management Center (FMC) Software. The vulnerability in question is CVE-2026-20131 (CVSS score: 10.0), a case of insecure deserialization of user-supplied Java byte stream, which could allow an unauthenticated, remote attacker to bypass authentication and execute arbitrary Java code as root on an affected device. According to data gleaned from the tech giant's MadPot global sensor network , the security flaw is said to have been exploited as a zero-day since January 26, 2026, more than a month before it was publicly disclosed by Cisco. "This wasn't just another vulnerability exploit; Interlock had a zero-day in their hands, giving them a week's head start to compromise organizations before defenders even knew to look. Upon making this discovery, we shared our findings with Cisco to help support...

Networking equipment major Cisco on Wednesday confirmed it was the victim of a cyberattack on May 24, 2022 after the attackers got hold of an employee's personal Google account that contained passwords synced from their web browser. "Initial access to the Cisco VPN was achieved via the successful compromise of a Cisco employee's personal Google account," Cisco Talos  said  in a detailed write-up. "The user had enabled password syncing via Google Chrome and had stored their Cisco credentials in their browser, enabling that information to synchronize to their Google account." The disclosure comes as cybercriminal actors associated with the Yanluowang ransomware gang  published a list of files  from the breach to their data leak site on August 10. The exfiltrated information, according to Talos, included the contents of a Box cloud storage folder that was associated with the compromised employee's account and is not believed to have included any valuabl...

As more businesses leverage remote, mobile, and temporary workforces, the elements of business continuity planning are evolving and requiring that IT professionals look deep into the nuts and bolts of connectivity. CISOs and their team members are facing new challenges each and every day, many of which have been driven by digital transformation, as well as the adoption of other productivity-enhancing technologies. A case in point is the rapidly evolving need to support remote and mobile users as businesses change how they interact with staffers. For example, the recent COVID-19 crisis has forced the majority of businesses worldwide to support employees that work from home or other remote locations. Many businesses are encountering numerous problems with connection reliability, as well as the challenges presented by rapidly scaling connectivity to meet a growing number of remote workers. Add to that security and privacy issues, and it becomes evident that CISOs may very wel...

Cisco today released thirty security patch advisory to address a total of 32 security vulnerabilities in its products, three of which are rated critical, including the recently disclosed Apache Struts remote code execution vulnerability that is being exploited in the wild. Out of the rest 29 vulnerabilities, fourteen are rated high and 15 medium in severity, addressing security flaws in Cisco Routers, Cisco Webex, Cisco Umbrella, Cisco SD-WAN Solution, Cisco Cloud Services Platform, Cisco Data Center Network, and more products. The three critical security vulnerabilities patched by Cisco address issues in Apache Struts, Cisco Umbrella API, and Cisco RV110W, RV130W and RV215W router's management interface. Apache Struts Remote Code Execution Vulnerability (CVE-2018-11776) The vulnerability, reported late last month by Semmle security researcher Man Yue Mo, resides in the core of Apache Struts and originates due to insufficient validation of user-provided untrusted inputs in...

Cisco has released security updates to address a maximum-severity security flaw in Secure Firewall Management Center (FMC) Software that could allow an attacker to execute arbitrary code on affected systems. The vulnerability, assigned the CVE identifier CVE-2025-20265 (CVSS score: 10.0), affects the RADIUS subsystem implementation that could permit an unauthenticated, remote attacker to inject arbitrary shell commands that are executed by the device. The networking equipment major said the issue stems from a lack of proper handling of user input during the authentication phase, as a result of which an attacker could send specially crafted input when entering credentials that get authenticated at the configured RADIUS server. "A successful exploit could allow the attacker to execute commands at a high privilege level," the company said in a Thursday advisory. "For this vulnerability to be exploited, Cisco Secure FMC Software must be configured for RADIUS authentica...

Cisco on Wednesday said it has released updates to address an actively exploited security flaw in its Adaptive Security Appliance (ASA) that could lead to a denial-of-service (DoS) condition. The vulnerability, tracked as CVE-2024-20481 (CVSS score: 5.8), affects the Remote Access VPN (RAVPN) service of Cisco ASA and Cisco Firepower Threat Defense (FTD) Software. Arising due to resource exhaustion, the security flaw could be exploited by unauthenticated, remote attackers to cause a DoS of the RAVPN service. "An attacker could exploit this vulnerability by sending a large number of VPN authentication requests to an affected device," Cisco said in an advisory. "A successful exploit could allow the attacker to exhaust resources, resulting in a DoS of the RAVPN service on the affected device." Restoration of the RAVPN service may require a reload of the device depending on the impact of the attack, the networking equipment company added. While there are no dire...

Multiple Cisco Wireless Residential Gateway products have a security vulnerability in the web server that could allow a remote attacker to hijack the devices remotely. Cisco announced that a number of its Wireless Residential Gateway products are vulnerable to a remote-code execution attack , which is exploited by sending a specially crafted HTTP request to the web server running on the affected device. According to Cisco, the flaw is due to the incorrect input validation for HTTP requests, which could allow an attacker to exploit a buffer overflow and run arbitrary code on the device. The bug is about as serious as they come, giving remote, unauthenticated attackers access to the affected machines. “ Successful exploitation of the vulnerability may cause the embedded web server to crash and allow the attacker to inject arbitrary commands and execute arbitrary code with elevated privileges, ” the Cisco advisory says, and until now, “ There are currently no known workarou...

Check Point is warning of a zero-day vulnerability in its Network Security gateway products that threat actors have exploited in the wild. Tracked as CVE-2024-24919 (CVSS score: 8.6), the issue impacts CloudGuard Network, Quantum Maestro, Quantum Scalable Chassis, Quantum Security Gateways, and Quantum Spark appliances. "The vulnerability potentially allows an attacker to read certain information on Internet-connected Gateways with remote access VPN or mobile access enabled," Check Point said . Hotfixes are available in the following versions - Quantum Security Gateway and CloudGuard Network Security Versions - R81.20, R81.10, R81, R80.40 Quantum Maestro and Quantum Scalable Chassis - R81.20, R81.10, R80.40, R80.30SP, R80.20SP Quantum Spark Gateways Version - R81.10.x, R80.20.x, R77.20.x The development comes days after the Israeli cybersecurity company warned of attacks targeting its VPN devices to infiltrate enterprise networks. "By May 24, 2024, we identi...

A Russian state-sponsored cyber espionage group known as Static Tundra has been observed actively exploiting a seven-year-old security flaw in Cisco IOS and Cisco IOS XE software as a means to establish persistent access to target networks. Cisco Talos, which disclosed details of the activity, said the attacks single out organizations in telecommunications, higher education and manufacturing sectors across North America, Asia, Africa and Europe. Prospective victims are chosen based on their "strategic interest" to Russia, it added, with recent efforts directed against Ukraine and its allies following the onset of the Russo-Ukrainian war in 2022. The vulnerability in question is CVE-2018-0171 (CVSS score: 9.8), a critical flaw in the Smart Install feature of Cisco IOS Software and Cisco IOS XE software that could allow an unauthenticated, remote attacker to trigger a denial-of-service (DoS) condition or execute arbitrary code. It's worth noting that the security ...

Cisco has confirmed that a Chinese threat actor known as Salt Typhoon gained access by likely abusing a known security flaw tracked as CVE-2018-0171 , and by obtaining legitimate victim login credentials as part of a targeted campaign aimed at major U.S. telecommunications companies. "The threat actor then demonstrated their ability to persist in target environments across equipment from multiple vendors for extended periods, maintaining access in one instance for over three years," Cisco Talos said , describing the hackers as highly sophisticated and well-funded. "The long timeline of this campaign suggests a high degree of coordination, planning, and patience — standard hallmarks of advanced persistent threat (APT) and state-sponsored actors." The networking equipment major said it found no evidence that other known security bugs have been weaponized by the hacking crew, contrary to a recent report from Recorded Future that revealed exploitation attempts inv...

Critical security vulnerabilities have been disclosed in six different Automatic Tank Gauge (ATG) systems from five manufacturers that could expose them to remote attacks. "These vulnerabilities pose significant real-world risks, as they could be exploited by malicious actors to cause widespread damage, including physical damage, environmental hazards, and economic losses," Bitsight researcher Pedro Umbelino said in a report published last week. Making matters worse, the analysis found that thousands of ATGs are exposed to the internet, making them a lucrative target for malicious actors looking to stage disruptive and destructive attacks against gas stations, hospitals, airports, military bases, and other critical infrastructure facilities. ATGs are sensor systems designed to monitor the level of a storage tank (e.g., fuel tank) over a period of time with the goal of determining leakage and parameters. Exploitation of security flaws in such systems could therefore have ...

Cisco has released security patches to address a critical security flaw impacting the Identity Services Engine (ISE) that, if successfully exploited, could allow unauthenticated actors to carry out malicious actions on susceptible systems. The security defect, tracked as CVE-2025-20286 , carries a CVSS score of 9.9 out of 10.0. It has been described as a static credential vulnerability. "A vulnerability in Amazon Web Services (AWS), Microsoft Azure, and Oracle Cloud Infrastructure (OCI) cloud deployments of Cisco Identity Services Engine (ISE) could allow an unauthenticated, remote attacker to access sensitive data, execute limited administrative operations, modify system configurations, or disrupt services within the impacted systems," the company said in an advisory. The networking equipment maker, which credited Kentaro Kawane of GMO Cybersecurity for reporting the flaw, noted it's aware of the existence of a proof-of-concept (PoC) exploit. There is no evidence th...

An Iranian advanced persistent threat (APT) threat actor likely affiliated with the Ministry of Intelligence and Security (MOIS) is now acting as an initial access facilitator that provides remote access to target networks. Google-owned Mandiant is tracking the activity cluster under the moniker UNC1860 , which it said shares similarities with intrusion sets tracked by Microsoft, Cisco Talos, and Check Point as Storm-0861 (formerly DEV-0861), ShroudedSnooper , and Scarred Manticore , respectively. "A key feature of UNC1860 is its collection of specialized tooling and passive backdoors that [...] supports several objectives, including its role as a probable initial access provider and its ability to gain persistent access to high-priority networks, such as those in the government and telecommunications space throughout the Middle East," the company said . The group first came to light in July 2022 in connection with destructive cyber attacks targeting Albania with a rans...

The notorious North Korea-linked threat actor known as the  Lazarus Group  has been attributed to a new global campaign that involves the opportunistic exploitation of security flaws in Log4j to deploy previously undocumented remote access trojans (RATs) on compromised hosts. Cisco Talos is tracking the activity under the name Operation Blacksmith, noting the use of three DLang-based malware families, including a RAT called NineRAT that leverages Telegram for command-and-control (C2), DLRAT, and a downloader dubbed BottomLoader. The cybersecurity firm described the latest tactics of the adversary as a definitive shift and that they overlap with the cluster widely tracked as Andariel (aka Onyx Sleet or Silent Chollima), a sub-group within the Lazarus umbrella. "Andariel is typically tasked with initial access, reconnaissance and establishing long term access for espionage in support of the North Korean government's national interests," Talos researchers Jung soo An, As...