CVE-2018-12589: Polaris Office 2017 8.1 allows attackers to execute arbitrary code via a Trojan horse puiframeworkproresenu.dl

This week

HIGH 7.8DOWNGRADE

CVE-2018-12589 is a high-severity flaw (CVSS 7.8) affecting polaris office 2017. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Polaris Office 2017 8.1 allows attackers to execute arbitrary code via a Trojan horse puiframeworkproresenu.dll file in the current working directory.

Why this priority

High severity
EPSS top 3%: very likely to be exploited
Public exploit reference

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	7.8 (High)
Attack vector	Local
Attack complexity	Low
Privileges needed	None
User interaction	Required
EPSS exploit chance	20.1% (top 3%)
CISA exploited list	No
Weakness	CWE-426
Published	2018-06-28
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: polarisoffice

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

Am I affected?

Timeline

2018-06-28 14:29 UTCPublished CVE record published
2026-06-17 01:38 UTCUpdated Record last modified

polarisoffice polaris office 2017 DOWNGRADE

Affected: 8.1

Fixed in: no fixed release known

Safe to downgrade to: a release before 8.1

1. Check installed version

apt-cache policy polaris-office-2017 || rpm -q polaris-office-2017 || polaris-office-2017 --version

2. No fixed release: DOWNGRADE to a release before 8.1 (Debian / Ubuntu)

apt-cache madison polaris-office-2017 sudo apt install polaris-office-2017=<VERSION_BEFORE_8.1> sudo apt-mark hold polaris-office-2017

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list polaris-office-2017 sudo dnf downgrade polaris-office-2017-<VERSION_BEFORE_8.1> sudo dnf versionlock add polaris-office-2017

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

Exploit-DB: PolarisOffice 2017 8 - Remote Code Execution

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-2018-12589?

polaris office 2017: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2018-12589 being exploited?

CVE-2018-12589 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-2018-12589 affect?

CVE-2018-12589 affects polaris office 2017. Severity is high (CVSS 7.8). Polaris Office 2017 8.1 allows attackers to execute arbitrary code via a Trojan horse puiframeworkproresenu.dll file in the current working directory.

How urgent is CVE-2018-12589?

Priority 57/100. High severity; EPSS top 3%: very likely to be exploited; Public exploit reference

References

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