CVE-2018-14891: Management Console in Vectra Networks Cognito Brain and Sensor before 4.3 contains a local privilege escalatio

Q: How do I fix CVE-2018-14891?

cognito: upgrade to newer than 4.2. Exact commands for each OS are on this page.

Q: Is CVE-2018-14891 being exploited?

CVE-2018-14891 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-2018-14891 affect?

CVE-2018-14891 affects cognito. Severity is high (CVSS 7.8). Management Console in Vectra Networks Cognito Brain and Sensor before 4.3 contains a local privilege escalation vulnerability.

Routine

HIGH 7.8UPGRADE

CVE-2018-14891 is a high-severity flaw (CVSS 7.8) affecting cognito. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Management Console in Vectra Networks Cognito Brain and Sensor before 4.3 contains a local privilege escalation vulnerability.

Why this priority

High severity

A fixed release or distro patch exists.

Risk facts

CVSS score	7.8 (High)
Attack vector	Local
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.3% (top 77%)
CISA exploited list	No
Published	2018-09-21
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: vectra

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2018-09-21 21:29 UTCPublished CVE record published
2026-06-17 01:41 UTCUpdated Record last modified

vectra cognito UPGRADE

Affected: <= 4.2

Fixed in: newer than 4.2

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy cognito || rpm -q cognito || cognito --version

2. UPGRADE to newer than 4.2 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade cognito

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade cognito

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-2018-14891?

cognito: upgrade to newer than 4.2. Exact commands for each OS are on this page.

Is CVE-2018-14891 being exploited?

CVE-2018-14891 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-2018-14891 affect?

CVE-2018-14891 affects cognito. Severity is high (CVSS 7.8). Management Console in Vectra Networks Cognito Brain and Sensor before 4.3 contains a local privilege escalation vulnerability.

How urgent is CVE-2018-14891?

Priority 33/100. High severity

Related CVEs

CVE-2018-14890 MEDIUM 5.4 UPGRADE Vectra Networks Cognito Brain and Sensor before 4.2 contains a cross-site scripting (XSS) vulnerability in the

References

← Back to latest CVEs