PAN-OS: Firewall Denial of Service (DoS) in DNS Security Using a Specially Crafted Packet
- Published
- Last modified
- Where the record stands: published, rejected by its publisher, or superseded by another id.What do these mean? →
- published
- Whether CISA lists it in its Known Exploited Vulnerabilities catalog: proof that attackers are using it.What do these mean? →
- Listed in CISA KEV
- Fix
- Fixed in 11.2.3, 11.1.2-h16, 10.2.8-h19, 10.1.14-h8
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
Summary
The vulnerability affects Palo Alto Networks PAN-OS firewall software when its DNS Security feature is enabled. An unauthenticated attacker can send a specially crafted packet that reboots the firewall, and repeated attempts can force it into maintenance mode, interrupting network protection.
Summarized by anthropic/claude-haiku-5.5. Verify details against the original sources.
Read the original description
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. Repeated attempts to trigger this condition will cause the firewall to enter maintenance mode.
Timeline
- CVE published
- Added to CISA KEV
CISA has evidence of exploitation in the wild
- CISA remediation deadline
Due date for US federal agencies to patch
- Record last updated
- EPSS reached 10%
FIRST estimates at least a 10% chance of exploitation in the next 30 days
Affected versions
- Palo Alto Networks Cloud NGFW
Version range not reported
- Palo Alto Networks PAN-OS
From 11.2.0 · fixed in 11.2.3; From 11.1.0 · fixed in 11.1.2-h16; From 10.2.8 · fixed in 10.2.8-h19; From 10.1.14 · fixed in 10.1.14-h8
- Palo Alto Networks PAN-OS
From 11.2.0 · fixed in 11.2.3