InfoSecBulletin Cybersecurity for mankind
Palo Alto Networks has revealed a high severity vulnerability in PAN-OS software that may lead to a denial-of-service (DoS) issue on affected devices.
The vulnerability CVE-2024-3393 (CVSS score: 8.7) affects PAN-OS versions 10.X and 11.X, and Prisma Access with PAN-OS versions 10.2.8 or later and before 11.2.3. It has been fixed in PAN-OS versions 10.1.14-h8, 10.2.10-h12, 11.1.5, 11.2.3, and all newer versions.
5 vendors’ printers totaling 748 models affected: Rapid7
Citrix Released Emergency Patches for Actively Exploited CVE-2025-6543
SonicWall warns of a trojanized NetExtender stealing VPN logins
CVE-2025-36537
TeamViewer patched vuln allowing hacker SYSTEM Rights
Hacker Target 70+ Microsoft Exchange Servers to Steal Credentials with Keyloggers
WhatsApp banned on all US House of Representatives devices
Kaspersky found “SparkKitty” Malware on Google Play, Apple App Store
OWASP AI Testing Guide Launched to Uncover Vulns in AI Systems
Axentec Launches Bangladesh’s First Locally Hosted Tier-4 Cloud Platform
Hackers Bypass Gmail MFA With App-Specific Password Reuse
“A denial-of-service vulnerability in the DNS Security feature of Palo Alto Networks PAN-OS software allows an unauthenticated attacker to send a malicious packet through the data plane of the firewall that reboots the firewall,” the company said in a Friday advisory.
“Repeated attempts to trigger this condition will cause the firewall to enter maintenance mode.”
Palo Alto Networks said it discovered the flaw in production use, and that it’s aware of customers “experiencing this denial-of-service (DoS) when their firewall blocks malicious DNS packets that trigger this issue.”
The activity’s scope is currently unclear. Hacker News has contacted Palo Alto Networks for comment and will update the story if they respond.
Firewalls with DNS Security logging enabled are affected by CVE-2024-3393. The flaw’s severity is reduced to a CVSS score of 7.1 when access is limited to authenticated users through Prisma Access.
The fixes have also been extended to other commonly deployed maintenance releases –
As workarounds and mitigations for unmanaged firewalls or those managed by Panorama, customers have the option of setting Log Severity to “none” for all configured DNS Security categories for each Anti-Spyware profile by navigating to Objects > Security Profiles > Anti-spyware > (select a profile) > DNS Policies > DNS Security.
Users can disable DNS Security logging on firewalls managed by Strata Cloud Manager (SCM) either individually or for all devices by opening a support case. For Prisma Access tenants, it’s recommended to open a support case to disable logging until an upgrade is performed.
