CVE-2021-3036

Description

An information exposure through log file vulnerability exists in Palo Alto Networks PAN-OS software where secrets in PAN-OS XML API requests are logged in cleartext to the web server logs when the API is used incorrectly. This vulnerability applies only to PAN-OS appliances that are configured to use the PAN-OS XML API and exists only when a client includes a duplicate API parameter in API requests. Logged information includes the cleartext username, password, and API key of the administrator making the PAN-OS XML API request.

Overview

State

—

Assigner (CNA)

—

CVSS severity

MEDIUM

CVSS score

5.0 / 10

CVSS vector

AV:L/AC:L/Au:N/C:P/I:N/A:N

Effective score

5.0 / 10 MEDIUM source: CNA overview

CWE(s)

—

Reserved

—

Published

2021-04-14 00:00 UTC

Last updated

—

Source

https://www.rapid7.com/db/vulnerabilities/panos-cve-2021-3036/

NVD triage scoring NVD CVE 2.0

Layer NVD adds on top of the CNA's CVE record — published / last-modified timestamps, exploitability / impact subscores, and the FIRST.org EPSS probability that this CVE will be exploited in the wild in the next 30 days.

NVD published

2021-04-20 04:15:12 UTC

NVD last modified

2024-11-21 06:20:48 UTC

NVD CVSS v3.1

4.4 / 10 MEDIUM source: psirt@paloaltonetworks.com

NVD CVSS vector

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

Exploitability subscore

0.8 / 10

Impact subscore

3.6 / 10

EPSS score

0.0014 (probability of exploitation in next 30 days)

EPSS percentile

34.13% vs all CVEs — higher = more likely to be exploited, as of 2026-06-04

NVD-assigned CWE(s): CWE-532 (differs from the CNA list above)

European Union Vulnerability Database ENISA EUVD

ENISA's official EU repository for curated vulnerability intelligence. Carries a separate identifier (EUVD-YYYY-NNNN) and frequently exposes an earlier-published description + CVSS than NVD does.

EUVD ID

EUVD-2021-26388

Assigner

palo_alto

Published

Apr 20, 2021, 3:15:17 AM

Updated

Sep 17, 2024, 4:28:51 AM

EUVD base score (CVSS 3.1)

4.4 / 10
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N

EUVD-reported EPSS

0.1400

Vendors

Palo Alto Networks

Products

PAN-OS (9.0 <9.0.12)

PAN-OS (10.0 <10.0.1)

PAN-OS (8.1 <8.1.19)

PAN-OS (9.1 <9.1.6)

Aliases

GHSA-r794-wg43-vp3f

ENISA description: An information exposure through log file vulnerability exists in Palo Alto Networks PAN-OS software where secrets in PAN-OS XML API requests are logged in cleartext to the web server logs when the API is used incorrectly. This vulnerability applies only to PAN-OS appliances that are configured to use the PAN-OS XML API and exists only when a client includes a duplicate API parameter in API requests. Logged information includes the cleartext username, password, and API key of the administrator making the PAN-OS XML API request.

Vendor references (0)

References embedded in the original CVE record by the assigning CNA.

None in the CVE record.

Web references (3)

DuckDuckGo results ranked by threat-intel / vendor advisory domains. Generated by the 🔎 Find references (web) button above — same flow as the Remediations search.

• https://attackerkb.com/topics/CVE-2021-3036 rapid7:attackerkb.com
• https://security.paloaltonetworks.com/CVE-2021-3036 rapid7:security.paloaltonetworks.com
• https://www.cve.org/CVERecord?id=CVE-2021-3036 rapid7:www.cve.org

• THREAT ADVISORY RedSun Zero-Day (Windows Defender) April 17, 2026
  web:blackswan-cybersecurity.com

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  2026-06-04 02:02 UTC
• Microsoft and Adobe Patch Tuesday, May 2026 Security Update Review
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• Remediate vulnerabilities with Microsoft Defender Vulnerability ...
  web:learn.microsoft.com

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• Security Update Guide - Microsoft
  web:msrc.microsoft.com

  The Microsoft Security Response Center (MSRC) investigates all reports of security vulnerabilities affecting Microsoft products and services, and provides the information here as part of the ongoing effort to help you manage security risks and help keep your systems protected.

  2026-06-04 02:02 UTC
• NVD - Home
  web:nvd.nist.gov

  The NVD is the U.S. government repository of standards based vulnerability management data represented using the Security Content Automation Protocol (SCAP). This data enables automation of vulnerability management, security measurement, and compliance. The NVD includes databases of security checklist references, security-related software flaws, product names, and impact metrics. For ...

  2026-06-04 02:02 UTC
• Critical Patch Updates, Critical Security Patch Updates ... - Oracle
  web:www.oracle.com

  Critical Security Patch Updates Critical Security Patch Updates provide security patches for supported Oracle on-premises products. A Critical Security Patch Update provides targeted, high-priority security fixes in a smaller, more focused format, making them easier to apply with minimal disruption.

  2026-06-04 02:02 UTC
• Oracle Critical Patch Update Advisory - April 2026
  web:www.oracle.com

  This Critical Patch Update contains 481 new security patches across the product families listed below. Please note that an MOS note summarizing the content of this Critical Patch Update and other Oracle Software Security Assurance activities is located at April 2026 Critical Patch Update: Executive Summary and Analysis.

  2026-06-04 02:02 UTC
• Samsung monthly updates: May 2026 security patch gets detailed
  web:www.sammobile.com

  Samsung has detailed the May 2026 security patch for Galaxy smartphones, smartwatches, and tablets. It brings two critical security fixes.

  2026-06-04 02:02 UTC
• Patch Tuesday June 2026: Security Updates & CVE Analysis
  web:zecurit.com

  Get the complete breakdown of Microsoft's June 2026 Patch Tuesday. We analyze the latest security updates and all critical CVEs .

  2026-06-04 02:02 UTC

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