CVE-2018-18255: An issue was discovered in CapMon Access Manager 5.4.1.1005

Q: How do I fix CVE-2018-18255?

access manager: upgrade to newer than 5.4.1.1005. Exact commands for each OS are on this page.

Q: Is CVE-2018-18255 being exploited?

CVE-2018-18255 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-2018-18255 affect?

CVE-2018-18255 affects access manager. Severity is high (CVSS 7.8). An issue was discovered in CapMon Access Manager 5.4.1.1005. The client applications of AccessManagerCoreService.exe communicate with this server through named pipes. A user can initiate communication with the server by creating a named pip

Q: How urgent is CVE-2018-18255?

Priority 41/100. High severity; Public exploit reference

This month

HIGH 7.8UPGRADE

CVE-2018-18255 is a high-severity flaw (CVSS 7.8) affecting access manager. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

An issue was discovered in CapMon Access Manager 5.4.1.1005. The client applications of AccessManagerCoreService.exe communicate with this server through named pipes. A user can initiate communication with the server by creating a named pipe and sending commands to achieve elevated privileges.

Why this priority

High severity
Public exploit reference

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	0.4% (top 65%)
CISA exploited list	No
Weakness	CWE-287
Published	2019-03-15
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: capmon

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

Am I affected?

Timeline

2019-03-15 15:29 UTCPublished CVE record published
2026-06-17 01:46 UTCUpdated Record last modified

capmon access manager UPGRADE

Affected: <= 5.4.1.1005

Fixed in: newer than 5.4.1.1005

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy access-manager || rpm -q access-manager || access-manager --version

2. UPGRADE to newer than 5.4.1.1005 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade access-manager

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade access-manager

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-2018-18255?

access manager: upgrade to newer than 5.4.1.1005. Exact commands for each OS are on this page.

Is CVE-2018-18255 being exploited?

CVE-2018-18255 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-2018-18255 affect?

CVE-2018-18255 affects access manager. Severity is high (CVSS 7.8). An issue was discovered in CapMon Access Manager 5.4.1.1005. The client applications of AccessManagerCoreService.exe communicate with this server through named pipes. A user can initiate communication with the server by creating a named pip

How urgent is CVE-2018-18255?

Priority 41/100. High severity; Public exploit reference

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References

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