CVE-2018-11637: Information leakage vulnerability in the administrative console in Dialogic PowerMedia XMS through 3.5 allows

Q: How do I fix CVE-2018-11637?

powermedia xms: upgrade to newer than 3.5. Exact commands for each OS are on this page.

Q: Is CVE-2018-11637 being exploited?

CVE-2018-11637 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-2018-11637 affect?

CVE-2018-11637 affects powermedia xms. Severity is high (CVSS 7.5). Information leakage vulnerability in the administrative console in Dialogic PowerMedia XMS through 3.5 allows remote attackers to read arbitrary files from the /var/ directory because a symlink exists under the web root.

Q: How urgent is CVE-2018-11637?

Priority 57/100. High severity; Public exploit reference; Remotely exploitable, no login, no user action

This week

HIGH 7.5REMOTEUPGRADE

CVE-2018-11637 is a high-severity flaw (CVSS 7.5) affecting powermedia xms. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Information leakage vulnerability in the administrative console in Dialogic PowerMedia XMS through 3.5 allows remote attackers to read arbitrary files from the /var/ directory because a symlink exists under the web root.

Why this priority

High severity
Public exploit reference
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	2.1% (top 19%)
CISA exploited list	No
Weakness	CWE-59
Published	2018-07-03
Last modified	2026-06-17

Publisher (CNA): MITRE · Vendor: dialogic

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

Am I affected?

Timeline

2018-07-03 17:29 UTCPublished CVE record published
2026-06-17 01:36 UTCUpdated Record last modified

dialogic powermedia xms UPGRADE

Affected: <= 3.5

Fixed in: newer than 3.5

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy powermedia-xms || rpm -q powermedia-xms || powermedia-xms --version

2. UPGRADE to newer than 3.5 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade powermedia-xms

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade powermedia-xms

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-2018-11637?

powermedia xms: upgrade to newer than 3.5. Exact commands for each OS are on this page.

Is CVE-2018-11637 being exploited?

CVE-2018-11637 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-2018-11637 affect?

CVE-2018-11637 affects powermedia xms. Severity is high (CVSS 7.5). Information leakage vulnerability in the administrative console in Dialogic PowerMedia XMS through 3.5 allows remote attackers to read arbitrary files from the /var/ directory because a symlink exists under the web root.

How urgent is CVE-2018-11637?

Priority 57/100. High severity; Public exploit reference; Remotely exploitable, no login, no user action

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CVE-2018-11641 CRITICAL 9.8 UPGRADE Use of Hard-coded Credentials in /var/www/xms/application/controllers/gatherLogs.php in the administrative con
CVE-2018-11640 CRITICAL 9.1 UPGRADE XML External Entity (XXE) vulnerability in the web service in Dialogic PowerMedia XMS before 3.5 SU2 allows re
CVE-2018-11639 HIGH 8.1 UPGRADE Plaintext Storage of Passwords within Cookies in /var/www/xms/application/controllers/verifyLogin.php in the a

References

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