CVE-2026-20300— Cisco Identity Services Engine SQL Injection Vulnerability
Quick assessment
Affected
Cisco Cisco Identity Services Engine Software
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
A vulnerability in Cisco ISE could allow an authenticated, remote attacker to conduct SQL injection attacks on an affected device. To exploit this vulnerability, the attacker must have at least low-privileged administrative credentials. This vulnerability is d
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I. Basic Information for CVE-2026-20300
Vulnerability Information
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Vulnerability Title
Cisco Identity Services Engine SQL Injection Vulnerability
Source: CVE Program / CVE List V5
Vulnerability Description
A vulnerability in Cisco ISE could allow an authenticated, remote attacker to conduct SQL injection attacks on an affected device. To exploit this vulnerability, the attacker must have at least low-privileged administrative credentials.
This vulnerability is due to improper validation of user-supplied input. An attacker could exploit this vulnerability by sending a crafted request to an affected device. A successful exploit could allow the attacker to read or modify data in the underlying database.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
SQL命令中使用的特殊元素转义处理不恰当(SQL注入)
Source: CVE Program / CVE List V5
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Cisco | Cisco Identity Services Engine Software | 3.1.0 | - |
|
II. Public POCs for CVE-2026-20300
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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Vendor Advisories for CVE-2026-20300 (1)
Same Patch Batch · Cisco · 2026-09-16 · 79 CVEs total
| CVE-2026-20192 | 10.0 CRITICAL | Cisco Identity Services Engine Hardening Release - Access Control Vulnerabilities |
| CVE-2026-76460 | 10.0 CRITICAL | Cisco Identity Services Engine Authentication Bypass Vulnerability |
| CVE-2026-76423 | 10.0 CRITICAL | Cisco ISE API Authentication Bypass Vulnerability |
| CVE-2026-20130 | 10.0 CRITICAL | Cisco Identity Services Engine Hardening Release - Improper Neutralization Vulnerabilities |
| CVE-2026-20332 | 9.9 CRITICAL | Cisco Secure Adaptive Security Appliance Software, Secure Firewall Threat Defense Software |
| CVE-2026-20307 | 9.9 CRITICAL | Cisco Identity Services Engine Remote Code Execution Vulnerability |
| CVE-2026-20234 | 9.9 CRITICAL | Cisco Identity Services Engine Hardening Release - Insuffiencently Protected Credential Vu |
| CVE-2026-20324 | 9.9 CRITICAL | Cisco Secure Firewall Management Center sftunnel Root Arbitrary Code Exectution Vulnerabil |
| CVE-2026-20325 | 9.9 CRITICAL | Cisco Nexus Dashboard Software Security Hardening Release September 2026 - Improper Neutra |
| CVE-2026-20329 | 9.9 CRITICAL | Cisco Secure Adaptive Security Appliance Software, Secure Firewall Threat Defense Software |
| CVE-2026-20322 | 9.9 CRITICAL | Cisco Nexus Dashboard Software Security Hardening Release September 2026 - Improper Access |
| CVE-2026-20330 | 9.9 CRITICAL | Cisco Secure Adaptive Security Appliance Software, Secure Firewall Threat Defense Software |
| CVE-2026-20242 | 9.8 CRITICAL | Cisco Secure Firewall Management Center Software Java Deserialization Remote Code Executio |
| CVE-2026-20326 | 9.8 CRITICAL | Cisco Nexus Dashboard Software Security Hardening Release September 2026 - Missing Authent |
| CVE-2026-20331 | 9.6 CRITICAL | Cisco Secure Adaptive Security Appliance Software, Secure Firewall Threat Defense Software |
| CVE-2026-20306 | 9.1 CRITICAL | Cisco Identity Services Engine Command Injection Vulnerability |
| CVE-2026-20211 | 9.1 CRITICAL | Cisco Identity Services Engine Remote Code Execution Vulnerability |
| CVE-2026-20341 | 9.1 CRITICAL | Cisco Secure Firewall Management Center Software sftunnel Deserialization Root Command Exe |
| CVE-2026-20176 | 9.1 CRITICAL | Cisco Identity Services Engine Remote Code Execution Vulnerability |
| CVE-2026-20284 | 9.1 CRITICAL | Cisco Identity Search Engine SXP REST API SQL Injection Vulnerability |
Showing top 20 of 79 CVEs. View all on vendor page → →
IV. Related Vulnerabilities
Same product: Cisco Identity Services Engine Software
-
CVE-2026-76426
Cisco ISE REST API SQL Injection Vulnerability -
CVE-2026-76431
Cisco Identity Services Engine Arbitrary File Deletion Vulne -
CVE-2026-76427
Cisco ISE XML External Entity Injection Vulnerability -
CVE-2026-76447
Cisco Identity Services Engine Certificate Reload Vulnerabil -
CVE-2026-20287
Cisco Identity Services Engine Hardening Release - Improper
Same vendor: Cisco
-
CVE-2026-76426
Cisco ISE REST API SQL Injection Vulnerability -
CVE-2026-20121
CIsco FTD Bypass Access List -
CVE-2026-76431
Cisco Identity Services Engine Arbitrary File Deletion Vulne -
CVE-2026-76427
Cisco ISE XML External Entity Injection Vulnerability -
CVE-2026-76447
Cisco Identity Services Engine Certificate Reload Vulnerabil
Same weakness: CWE-89
-
CVE-2026-75513
Marten: SQL injection in Marten's LINQ provider via unescape -
CVE-2026-76426
Cisco ISE REST API SQL Injection Vulnerability -
CVE-2026-76448
Cisco Identity Services Engine SQL Injection Vulnerability -
CVE-2026-20235
Cisco Identity Services Engine Information Disclosure Vulner -
CVE-2026-76449
Cisco Identity Services Engine SQL Injection Vulnerability
V. Comments for CVE-2026-20300
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