Latest cybersecurity reporting from selected sources.

Eleven bytes will make an unpatched OpenSSL server set aside up to 131 KB of memory for a message that never arrives. On the glibc systems Okta tested, that memory is gone until the process restarts

Citrix on Tuesday released security updates to address multiple flaws in NetScaler ADC (formerly Citrix ADC) and NetScaler Gateway (formerly Citrix Gateway) that could be exploited by an attacker to facilitate arbitrary file reads or trigger a denial-of-service (DoS) condition

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has added a high-severity security flaw impacting SolarWinds Serv-U multi-protocol file server software to its Known Exploited Vulnerabilities (KEV) catalog, citing evidence of active exploitation

Microsoft has disclosed that a privilege escalation and a denial-of-service flaw in Defender has come under active exploitation in the wild

cPanel has released updates to address three vulnerabilities in cPanel and Web Host Manager (WHM) that could be exploited to achieve privilege escalation, code execution, and denial-of-service

The Apache Software Foundation (ASF) has released security updates to address several security vulnerabilities in the HTTP Server, including a severe vulnerability that could potentially lead to remote code execution (RCE)

Threat actors are exploiting security flaws in TBK DVR and end‑of‑life (EoL) TP-Link Wi-Fi routers to deploy Mirai-botnet variants on compromised devices, according to findings from Fortinet FortiGuard Labs and Palo Alto Networks Unit 42

Zoom and GitLab have released security updates to resolve a number of security vulnerabilities that could result in denial-of-service (DoS) and remote code execution

Palo Alto Networks has released security updates for a high-severity security flaw impacting GlobalProtect Gateway and Portal, for which it said there exists a proof-of-concept (PoC) exploit

The React team has released fixes for two new types of flaws in React Server Components (RSC) that, if successfully exploited, could result in denial-of-service (DoS) or source code exposure

Cisco on Wednesday disclosed that it became aware of a new attack variant that's designed to target devices running Cisco Secure Firewall Adaptive Security Appliance (ASA) Software and Cisco Secure Firewall Threat Defense (FTD) Software releases that are susceptible to CVE-2025-20333 and CVE-2025-20362

Cisco has warned of a high-severity security flaw in IOS Software and IOS XE Software that could allow a remote attacker to execute arbitrary code or trigger a denial-of-service (DoS) condition under specific circumstances

Citrix has released fixes to address three security flaws in NetScaler ADC and NetScaler Gateway, including one that it said has been actively exploited in the wild

Cybersecurity researchers are calling attention to a malware campaign that's targeting security flaws in TBK digital video recorders (DVRs) and Four-Faith routers to rope the devices into a new botnet called RondoDox

Citrix has released security updates to address a critical flaw affecting NetScaler ADC that it said has been exploited in the wild

A now-patched critical security flaw in the Wazur Server is being exploited by threat actors to drop two different Mirai botnet variants and use them to conduct distributed denial-of-service (DDoS) attacks

Cybersecurity researchers have disclosed details of a new vulnerability impacting Google's Quick Share data transfer utility for Windows that could be exploited to achieve a denial-of-service (DoS) or send arbitrary files to a target's device without their approval

Two security vulnerabilities have been discovered in the OpenSSH secure networking utility suite that, if successfully exploited, could result in an active machine-in-the-middle (MitM) and a denial-of-service (DoS) attack, respectively, under certain conditions

A Mirai botnet variant dubbed Aquabot has been observed actively attempting to exploit a medium-severity security flaw impacting Mitel phones in order to ensnare them into a network capable of mounting distributed denial-of-service (DDoS) attacks

A proof-of-concept (PoC) exploit has been released for a now-patched security flaw impacting Windows Lightweight Directory Access Protocol (LDAP) that could trigger a denial-of-service (DoS) condition