A maximum-severity vulnerability in certain Cisco products has finally been addressed after allegedly being exploited by Chinese hackers for several weeks.
In mid-December 2025, the networking giant disclosed a remote code execution (RCE) vulnerability in AsyncOS that affects Secure Email Gateway (SEG) and Secure Email and Web Manager (SEWM) appliances. It tracked the flaw as CVE-2025-20393 and gave it a severity score of 10/10 (critical). “This attack allows the threat actors to execute arbitrary commands with root privileges on the underlying operating system of an affected appliance,” Cisco said at the time.
Read more…
Source: TechRadar News
Sign up for the Cyber Security Review Newsletter
The latest cyber security news and insights delivered right to your inbox
Related:
- CISA Alert (AA21-062A): Mitigate Microsoft Exchange Server Vulnerabilities
March 3, 2021
Cybersecurity and Infrastructure Security (CISA) partners have observed active exploitation of vulnerabilities in Microsoft Exchange Server products. Successful exploitation of these vulnerabilities allows an unauthenticated attacker to execute arbitrary code on vulnerable Exchange Servers, enabling the attacker to gain persistent system access, as well as access to files and mailboxes on the server and to ...
- Working Windows and Linux Spectre exploits found on VirusTotal
March 1, 2021
Working exploits targeting Linux and Windows systems not patched against a three-year-old vulnerability dubbed Spectre were found by security researcher Julien Voisin on VirusTotal. The vulnerability was unveiled as a hardware bug in January 2018 by Google Project Zero researchers. If successfully exploited on vulnerable systems, it can be used by attackers to steal sensitive data, including ...
- Cybersecurity firm Genua fixes a critical flaw in its GenuGate High Resistance Firewall
March 1, 2021
Germany-based cybersecurity company Genua has fast-tracked a fix for a critical flaw in one of its firewall products. If exploited, the vulnerability could allow local attackers to bypass authentication measures and log in to internal company networks with the highest level of privileges. Genua says it offers more than 20 security solutions for encrypting data communication ...
- Cisco Warns of Critical Auth-Bypass Security Flaw
February 25, 2021
A critical vulnerability in Cisco Systems’ intersite policy manager software could allow a remote attacker to bypass authentication. The vulnerability is one of three critical flaws fixed by Cisco on this week. It exists in Cisco’s ACI Multi-Site Orchestrator (ACI MSO) — this is Cisco’s management software for businesses, which allows them to monitor the health ...
- CISA Alert (AA21-055A): Exploitation of Accellion File Transfer Appliance
February 24, 2021
This joint advisory is the result of a collaborative effort by the cybersecurity authorities of Australia, This activity has impacted organizations globally, including those in Australia, New Zealand, Singapore, the ...
- Accellion FTA Zero-Day Attacks Show Ties to Clop Ransomware, FIN11
February 22, 2021
Researchers have identified a set of threat actors (dubbed UNC2546 and UNC2582) with connections to the FIN11 and the Clop ransomware gang as the cybercriminal group behind the global zero-day attacks on users of the Accellion legacy File Transfer Appliance product. Multiple Accellion FTA customers, including the Jones Day Law Firm, Kroger and Singtel, have all ...