PAN-OS: Buffer overflow in the management web interface

published 2020-09-09 6 y ago modified 2026-06-17 4 mo ago also EUVD-2020-22068

cvss: 7.2; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 2.3%; EPSS 2.3% chance of exploitation in 30 days, percentile 83%
public exploits: 0; none known

A buffer overflow vulnerability in the PAN-OS management web interface allows authenticated administrators to disrupt system processes and potentially execute arbitrary code with root privileges. This issue impacts only PAN-OS 10.0 versions earlier than PAN-OS 10.0.1.

Patch / fix

fixed in 1

Palo Alto Networks PAN-OS 10.0.1

Exploit prediction

2.30% chance of exploitation in the next 30 days, higher than 83% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	3.1	7.2	CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
NVD	3.1	7.2	CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
NVD	2.0	9.0	AV:N/AC:L/Au:S/C:C/I:C/A:C

Affected products

Palo Alto Networks PAN-OS

Classification

Weakness

CWE-121 Stack-based Buffer Overflow
CWE-120 Buffer Copy without Checking Size of Input

Technology feeds

Palo Alto PAN-OS rss critical rss

References

security.paloaltonetworks.com /CVE-2020-2042
vendor-advisory

Sources

CVE List CVE-2020-2042
NVD CVE-2020-2042

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary