CVE-2026-20189: A vulnerability in the log file download functionality of Cisco Prime Infrastructure could allow an authe

Q: How do I fix CVE-2026-20189?

prime infrastructure: upgrade to 3.10.6. Exact commands for each OS are on this page.

Q: Is CVE-2026-20189 being exploited?

CVE-2026-20189 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-2026-20189 affect?

CVE-2026-20189 affects prime infrastructure. Severity is medium (CVSS 4.3). A vulnerability in the log file download functionality of Cisco Prime Infrastructure could allow an authenticated, remote attacker to download arbitrary log files from the server. This vulnerability is due to insufficient authorizat

Q: How urgent is CVE-2026-20189?

Priority 18/100. No elevated risk signals yet.

Routine

MEDIUM 4.3UPGRADE

CVE-2026-20189 is a medium-severity flaw (CVSS 4.3) affecting prime infrastructure. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

A vulnerability in the log file download functionality of Cisco Prime Infrastructure could allow an authenticated, remote attacker to download arbitrary log files from the server. This vulnerability is due to insufficient authorization checks on the download service API. An attacker could exploit this vulnerability by submitting a crafted URL request to an affected device. A successful exploit could allow the attacker to download sensitiv

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	4.3 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.2% (top 88%)
CISA exploited list	No
Weakness	CWE-862
Published	2026-05-06
Last modified	2026-10-25

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

Last updated 2026-10-25 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-05-06 17:16 UTCPublished CVE record published
2026-10-25 23:10 UTCUpdated Record last modified

cisco prime infrastructure UPGRADE

Affected: < 3.10.6 · 3.10.6 · 3.10.6 security_update_01 · 3.10.6 security_update_02

Fixed in: 3.10.6

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy prime-infrastructure || rpm -q prime-infrastructure || prime-infrastructure --version

2. UPGRADE to 3.10.6 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade prime-infrastructure

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade prime-infrastructure

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-2026-20189?

prime infrastructure: upgrade to 3.10.6. Exact commands for each OS are on this page.

Is CVE-2026-20189 being exploited?

CVE-2026-20189 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-2026-20189 affect?

CVE-2026-20189 affects prime infrastructure. Severity is medium (CVSS 4.3). A vulnerability in the log file download functionality of Cisco Prime Infrastructure could allow an authenticated, remote attacker to download arbitrary log files from the server. This vulnerability is due to insufficient authorizat

How urgent is CVE-2026-20189?

Priority 18/100. No elevated risk signals yet.

Software pages

Cisco vulnerabilities

References

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CVE-2026-20189: A vulnerability in the log file download functionality of Cisco Prime Infrastructure could allow an&nbsp;authe