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Cisco ISE EUVDEUVD-2026-81124

| CVE-2026-20247 HIGH
SQL Injection (CWE-89)
2026-09-16 cisco GHSA-x5qw-hwvr-5f3m
7.5
CVSS 3.1 · NVD
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Severity by source

Vendor (cisco) PRIMARY
HIGH
qualitative
NVD
7.5 HIGH
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
vuln.today AI
7.5 HIGH

Description and advisory support unauthenticated network SQLi (AV:N/AC:L/PR:N) with impact limited to database modification (I:H), no read or DoS (C:N/A:N), same-scope backend (S:U).

3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
4.0 AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N

Primary rating from Vendor (cisco).

CVSS VectorNVD

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
High
Availability
None

Lifecycle Timeline

2
Analysis Generated
Sep 16, 2026 - 21:45 vuln.today
CVE Published
Sep 16, 2026 - 20:12 nvd
HIGH 7.5

DescriptionNVD

A vulnerability in Cisco ISE could allow an unauthenticated, remote attacker to conduct SQL injection attacks on an affected device.

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 modify data in the underlying database.

AnalysisAI

Unauthenticated remote SQL injection in Cisco ISE 3.1.x through 3.5.x allows a network attacker to modify data in the product's underlying database via a crafted request, per CVSS 7.5 (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N). The flaw is CWE-89 improper neutralization of special elements in SQL, and Cisco's advisory plus ENISA EUVD list numerous 3.1.0-3.5 patch levels as affected. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
technique details hidden
Delivery
technique details hidden
Exploit
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Execution
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Impact
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Vulnerability AssessmentAI

Exploitation No special conditions stated - the vendor vector (AV:N/AC:L/PR:N/UI:N) indicates remote unauthenticated exploitation of an affected Cisco ISE device via a single crafted request against default-reachable functionality; no configuration toggle, feature enablement, or user interaction is required per the advisory. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment This is a genuinely notable finding: an unauthenticated, remote SQL injection (CVSS 7.5, AV:N/AC:L/PR:N/UI:N) in Cisco ISE, a ubiquitous enterprise NAC/identity platform. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario Full exploit scenario with step-by-step reproduction available after sign-in.
Remediation No exact fixed version is specified in the supplied data; Cisco's advisory at https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ise-sql-inj-3QTKR947 is the authoritative source and should be used to identify the patched ISE release for each affected train. … Detailed patch versions, workarounds, and compensating controls in full report.

Recommended ActionAI

Within 24 hours, inventory every Cisco ISE deployment and identify instances running 3.1.x through 3.5.x, then verify whether their management, administrative, and service interfaces are reachable from user, guest, VPN, or other untrusted network segments; where reachability exists, immediately restrict it through network segmentation, ACLs, or firewall rules and route all administration through a hardened jump host or out-of-band management network. …

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Threat intelligence, references, and detailed analysis are available after sign-in.

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EUVD-2026-81124 vulnerability details – vuln.today

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