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Cisco Secure Firewall Threat Defense Software TLS 1.3 Denial of Service Vulnerability

A TLS 1.3 buffer management flaw in Cisco Secure Firewall Threat Defense lets remote attackers crash the LINA process and reload devices.

A vulnerability in the TLS 1.3 implementation of Cisco Secure Firewall Threat Defense (FTD) software allows an unauthenticated remote attacker to cause a denial of service via crafted TLS 1.3 packets sent to a TLS 1.3-enabled listening socket. Improper buffer management causes the LINA process to crash, forcing a device reload that can occur before or after connection authentication. Cisco has released software updates to address the flaw.

Cisco Security Advisories · 7h agoAdvisory 9 sources

Parallels Desktop Flaw Lets Non-Admin Mac Users Gain Root, but Intel Macs Can't Install Fix

JFrog disclosed CVE-2026-90894, a 7.8-rated local privilege escalation in Parallels Desktop for Mac, patched only in version 27, which Intel Macs cannot install.

JFrog researcher Yuval Moravchick disclosed CVE-2026-90894 (dubbed ParaShells, CVSS 7.8), a local privilege escalation in Parallels Desktop for Mac that lets non-admin users run code as root. The root-level prl_disp_service listens on a world-writable socket, and argument injection into a tar command via QProcess::splitCommand and the --use-compress-program option yields code execution as root, demonstrated on Parallels Desktop 26.4.0 build 57513 on Apple silicon. The fix appears in version 27.0.0, but Parallels Desktop 27 requires Apple silicon, leaving Intel Macs on the 26.x line with no build JFrog describes as fixed. No exploitation in the wild has been reported and Parallels has not published a statement.

The Hacker News · 10h agoVulnerability 4 sourcesCVE-2026-90894