Is CVE-2020-2040 in the CISA KEV catalog?

No. CVE-2020-2040 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2020-2040?

CVE-2020-2040 has a CVSS v3 base score of 9.8 (CRITICAL).

What is the EPSS score for CVE-2020-2040?

CVE-2020-2040 has an EPSS score of 3.94% (89th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2020-2040?

Upgrade pan-os to 9.1.3 or later.

CVE & CISA-KEV Catalog

CVE-2020-2040

CRITICALEPSS 89th pctl

9.8

CVSS v3

NVD

Description

A buffer overflow vulnerability in PAN-OS allows an unauthenticated attacker to disrupt system processes and potentially execute arbitrary code with root privileges by sending a malicious request to the Captive Portal or Multi-Factor Authentication interface. This issue impacts: All versions of PAN-OS 8.0; PAN-OS 8.1 versions earlier than PAN-OS 8.1.15; PAN-OS 9.0 versions earlier than PAN-OS 9.0.9; PAN-OS 9.1 versions earlier than PAN-OS 9.1.3.

CWE-120Classic Buffer Overflow

How to fix

Remediation Available

pan-osNVD

Affected:>= 9.1.0, < 9.1.3Fixed in:9.1.3CVE-2020-2040derived from NVD

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploit Intelligence

3.94%probability of exploitation in 30 days

89thpercentile

Elevated risk: more likely to be exploited than 89% of all known CVEs.

References

Vendor Advisory1

security.paloaltonetworks.com

Related Vulnerabilities

Other CWE-120 (Classic Buffer Overflow) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2014-0195	Medium	6.8	100%	-	Fix
CVE-2017-7269	Critical	9.8	100%	KEV	-
CVE-2019-11043	High	8.7	99%	KEV + Ransom	Fix
CVE-2011-4862	High	10.0	95%	-	Fix
CVE-2007-5659	High	7.8	94%	KEV	Fix
CVE-2022-3786	High	7.5	91%	-	Fix

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.