Buffer Overflow Vulnerabilities in PAN-OS by Palo Alto Networks
CVE-2026-0288

4.8MEDIUM

Key Information:

Vendor

Palo Alto Networks
Status
Cloud Ngfw
Pan-os
Prisma Access
Vendor
CVE Published:
8 July 2026

Badges

👾 Exploit Exists

What is CVE-2026-0288?

Multiple buffer overflow vulnerabilities exist within the User-ID Terminal Server Agent (TSA) component of PAN-OS. These vulnerabilities can be exploited by an unauthenticated attacker with network access, potentially leading to denial of service (DoS) or even arbitrary code execution through specially crafted network traffic. To mitigate risks, Palo Alto Networks recommends restricting TSA connectivity to trusted internal IP addresses, ensuring that deployment guidelines are followed to enhance security.

Affected Version(s)

Cloud NGFW AWS All

PAN-OS 12.1.0 < 12.1.8

PAN-OS 11.2.0 < 11.2.13

References

https://security.paloaltonetworks.com/CVE-2026-0288
vendor-advisory

CVSS V4

Score:
4.8
Severity:
MEDIUM
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Adjacent Network
Attack Complexity:
Low
Attack Required:
Physical
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Liang Zhu
.