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Cisco Identity Services Engine Authenticated Write Vulnerability

CVSS 3.1 4.9 MEDIUMCheck source for fixed versionsKEV status unknown

cve-program · CVE-2026-20282

Published

A vulnerability in Cisco ISE could allow an authenticated, remote attacker to obtain write access on the underlying operating system of an affected device. This vulnerability is due to insufficient validation of user-supplied input. An attacker could exploit this vulnerability by sending a crafted HTTP request to an affected device. A successful exploit could allow the attacker to obtain write access to the underlying operating system. To exploit this vulnerability, the attacker must have valid administrative credentials. Note: For CVE-2026-20282, Cisco has assigned a Security Impact Rating (SIR) of High rather than Medium as the score indicates. The reason is that it is easy to get to root from the achieved privilege level.

Read the publisher's advisory

Affected versions, risk and source history

cve-program · CVE-2026-20282

Published

Cisco Identity Services Engine Software

Vendor product

Publisher's version information

Shown as published. These rules are not interpreted as NuGet package version ranges.

{
                    "vendor": "Cisco",
                    "product": "Cisco Identity Services Engine Software",
                    "versions": [
                        {
                            "version": "3.1.0",
                            "status": "affected"
                        },
                        {
                            "version": "3.1.0 p1",
                            "status": "affected"
                        },
                        {
                            "version": "3.1.0 p3",
                            "status": "affected"
                        },
                        {
                            "version": "3.1.0 p2",
                            "status": "affected"
                        },
                        {
                            "version": "3.2.0",
                            "status": "affected"
                        },
                        {
                            "version": "3.1.0 p4",
                            "status": "affected"
                        },
                        {
                            "version": "3.1.0 p5",
                            "status": "affected"
                        },
                        {
                            "version": "3.2.0 p1",
                            "status": "affected"
                        },
                        {
                            "version": "3.1.0 p6",
                            "status": "affected"
                        },
                        {
                            "version": "3.2.0 p2",
                            "status": "affected"
                        },
                        {
                            "version": "3.1.0 p7",
                            "status": "affected"
                        },
                        {
                            "version": "3.3.0",
                            "status": "affected"
                        },
                        {
                            "version": "3.2.0 p3",
                            "status": "affected"
                        },
                        {
                            "version": "3.2.0 p4",
                            "status": "affected"
                        },
                        {
                            "version": "3.1.0 p8",
                            "status": "affected"
                        },
                        {
                            "version": "3.2.0 p5",
                            "status": "affected"
                        },
                        {
                            "version": "3.2.0 p6",
                            "status": "affected"
                        },
                        {
                            "version": "3.1.0 p9",
                            "status": "affected"
                        },
                        {
                            "version": "3.3 Patch 2",
                            "status": "affected"
                        },
                        {
                            "version": "3.3 Patch 1",
                            "status": "affected"
                        },
                        {
                            "version": "3.3 Patch 3",
                            "status": "affected"
                        },
                        {
                            "version": "3.4.0",
                            "status": "affected"
                        },
                        {
                            "version": "3.2.0 p7",
                            "status": "affected"
                        },
                        {
                            "version": "3.3 Patch 4",
                            "status": "affected"
                        },
                        {
                            "version": "3.4 Patch 1",
                            "status": "affected"
                        },
                        {
                            "version": "3.1.0 p10",
                            "status": "affected"
                        },
                        {
                            "version": "3.3 Patch 5",
                            "status": "affected"
                        },
                        {
                            "version": "3.3 Patch 6",
                            "status": "affected"
                        },
                        {
                            "version": "3.4 Patch 2",
                            "status": "affected"
                        },
                        {
                            "version": "3.3 Patch 7",
                            "status": "affected"
                        },
                        {
                            "version": "3.4 Patch 3",
                            "status": "affected"
                        },
                        {
                            "version": "3.5.0",
                            "status": "affected"
                        },
                        {
                            "version": "3.4 Patch 4",
                            "status": "affected"
                        },
                        {
                            "version": "3.3 Patch 8",
                            "status": "affected"
                        },
                        {
                            "version": "3.2 Patch 8",
                            "status": "affected"
                        },
                        {
                            "version": "3.5 Patch 1",
                            "status": "affected"
                        },
                        {
                            "version": "3.3 Patch 9",
                            "status": "affected"
                        },
                        {
                            "version": "3.2 Patch 9",
                            "status": "affected"
                        },
                        {
                            "version": "3.4 Patch 5",
                            "status": "affected"
                        },
                        {
                            "version": "3.5 Patch 3",
                            "status": "affected"
                        },
                        {
                            "version": "3.5 Patch 2",
                            "status": "affected"
                        },
                        {
                            "version": "3.3 Patch 10",
                            "status": "affected"
                        },
                        {
                            "version": "3.3 Patch 11",
                            "status": "affected"
                        },
                        {
                            "version": "3.4 Patch 6",
                            "status": "affected"
                        },
                        {
                            "version": "3.2 Patch 10",
                            "status": "affected"
                        },
                        {
                            "version": "3.1.0 p72",
                            "status": "affected"
                        },
                        {
                            "version": "3.1.0 p11",
                            "status": "affected"
                        },
                        {
                            "version": "3.1.0 p12",
                            "status": "affected"
                        },
                        {
                            "version": "3.2 Patch 11",
                            "status": "affected"
                        }
                    ],
                    "defaultStatus": "unknown"
                }

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Sources read 12 Nov 22:49 UTC · 273 of 275 readable · 271 fully read · documentation 469/469 current