CVE-2025-36438: IBM Concert 1.0.0 through 2.2.0 could allow a privileged user to perform unauthorized actions due to improper

Routine

MEDIUM 5.1UPGRADE

CVE-2025-36438 is a medium-severity flaw (CVSS 5.1) affecting concert. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

IBM Concert 1.0.0 through 2.2.0 could allow a privileged user to perform unauthorized actions due to improper restriction of channel communication to intended endpoints.

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	5.1 (Medium)
Attack vector	Local
Attack complexity	High
Privileges needed	None
User interaction	None
EPSS exploit chance	0.1% (top 98%)
CISA exploited list	No
Weakness	CWE-923
Published	2026-03-25
Last modified	2026-06-17

Publisher (CNA): IBM Corporation · Vendor: ibm

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

Am I affected?

Timeline

2026-03-25 21:16 UTCPublished CVE record published
2026-06-17 09:14 UTCUpdated Record last modified

ibm concert UPGRADE

Affected: >= 1.0.0 and <= 2.2.0

Fixed in: newer than 2.2.0

Safe to downgrade to: a release before 1.0.0

1. Check installed version

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

2. UPGRADE to newer than 2.2.0 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade concert

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

3. If no update is available yet, DOWNGRADE to a release before 1.0.0 (Debian / Ubuntu)

apt-cache madison concert sudo apt install concert=<VERSION_BEFORE_1.0.0> sudo apt-mark hold concert

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list concert sudo dnf downgrade concert-<VERSION_BEFORE_1.0.0> sudo dnf versionlock add concert

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.

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-2025-36438?

concert: upgrade to newer than 2.2.0. Exact commands for each OS are on this page.

Is CVE-2025-36438 being exploited?

CVE-2025-36438 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-2025-36438 affect?

CVE-2025-36438 affects concert. Severity is medium (CVSS 5.1). IBM Concert 1.0.0 through 2.2.0 could allow a privileged user to perform unauthorized actions due to improper restriction of channel communication to intended endpoints.

How urgent is CVE-2025-36438?

Priority 18/100. No elevated risk signals yet.

Related CVEs

CVE-2026-6928 CRITICAL 9.8 UPGRADE IBM Concert 1.0.0 through 3.0.0 references or accesses memory after it has been freed
CVE-2026-6935 HIGH 7.8 UPGRADE IBM Concert 1.0.0 through 3.0.0 invokes operating system commands without fully qualifying executable paths or
CVE-2026-6544 MEDIUM 6.2 UPGRADE IBM Concert 1.0.0 through 3.0.0 allows recursive copying of directories without proper controls which can lead
CVE-2026-6925 MEDIUM 5.3 UPGRADE IBM Concert 1.0.0 through 3.0.0 could allow a remote attacker to traverse directories on the system
CVE-2026-6794 HIGH 7.8 UPGRADE IBM Concert 1.0.0 through 3.0.0 has a double free vulnerability that exists due to incorrect memory management

References

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