CVE-2026-20146: A vulnerability in Cisco Identity Services Engine (ISE) and Cisco ISE Passive Identity Connector (ISE-PIC) cou

Q: How do I fix CVE-2026-20146?

identity services engine passive identity connector: upgrade to 3.3.0; identity services engine: upgrade to 3.3.0. Exact commands for each OS are on this page.

Q: Is CVE-2026-20146 being exploited?

CVE-2026-20146 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2026-20146 affect?

CVE-2026-20146 affects identity services engine passive identity connector, identity services engine. Severity is medium (CVSS 5.5). A vulnerability in Cisco Identity Services Engine (ISE) and Cisco ISE Passive Identity Connector (ISE-PIC) could allow an authenticated, remote attacker to perform path traversal attacks on the underlying operating system to either read or

Q: How urgent is CVE-2026-20146?

Priority 30/100. No elevated risk signals yet.

Routine

MEDIUM 5.5UPGRADEUPGRADE

CVE-2026-20146 is a medium-severity flaw (CVSS 5.5) affecting identity services engine passive identity connector, identity services engine. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A vulnerability in Cisco Identity Services Engine (ISE) and Cisco ISE Passive Identity Connector (ISE-PIC) could allow an authenticated, remote attacker to perform path traversal attacks on the underlying operating system to either read or delete arbitrary files. To exploit this vulnerability, the attacker must have valid administrative credentials.  This vulnerability is due to improper validation of user-supplied input. An attacker coul

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	5.5 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	High
User interaction	None
EPSS exploit chance	0.5% (top 58%)
CISA exploited list	No
Weakness	CWE-22
Published	2026-07-15
Last modified	2026-09-25

Publisher (CNA): Cisco Systems, Inc. · Vendor: cisco

Last updated 2026-09-25 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-07-15 17:16 UTCPublished CVE record published
2026-09-25 16:41 UTCUpdated Record last modified

cisco identity services engine passive identity connector UPGRADE

Affected: < 3.3.0 · 3.3.0 · 3.3.0 patch1 · 3.3.0 patch10 · 3.3.0 patch11 · 3.3.0 patch2 · 3.3.0 patch3 · 3.3.0 patch4

Fixed in: 3.3.0

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy identity-services-engine-passive-identity-connector || rpm -q identity-services-engine-passive-identity-connector || identity-services-engine-passive-identity-connector --version

2. UPGRADE to 3.3.0 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade identity-services-engine-passive-identity-connector

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade identity-services-engine-passive-identity-connector

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

cisco identity services engine UPGRADE

Affected: < 3.3.0 · 3.3.0 · 3.3.0 patch1 · 3.3.0 patch10 · 3.3.0 patch11 · 3.3.0 patch2 · 3.3.0 patch3 · 3.3.0 patch4

Fixed in: 3.3.0

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy identity-services-engine || rpm -q identity-services-engine || identity-services-engine --version

2. UPGRADE to 3.3.0 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade identity-services-engine

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade identity-services-engine

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-20146?

identity services engine passive identity connector: upgrade to 3.3.0; identity services engine: upgrade to 3.3.0. Exact commands for each OS are on this page.

Is CVE-2026-20146 being exploited?

CVE-2026-20146 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-20146 affect?

CVE-2026-20146 affects identity services engine passive identity connector, identity services engine. Severity is medium (CVSS 5.5). A vulnerability in Cisco Identity Services Engine (ISE) and Cisco ISE Passive Identity Connector (ISE-PIC) could allow an authenticated, remote attacker to perform path traversal attacks on the underlying operating system to either read or

How urgent is CVE-2026-20146?

Priority 30/100. No elevated risk signals yet.

Software pages

Cisco vulnerabilities · Cisco ISE vulnerabilities

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References

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