Multiple Vulnerabilities in IBM Concert Software
- Exploited
- No known exploitation
- Fix
- Fixed in 3.1.0
- Who is exposed
- Not reported
Do first: Upgrade to a fixed version: 3.1.0.
- Last modified
- A 0-100 score for how much a CVE matters across the industry: exploitation, exposure, how widely the software is used, severity and whether a fix exists.What do these mean? →
- 27/100 · provisional
- How many real-world setups can hit the bug, from the vendor's advisory and CISA data. It does not know your setup.What do these mean? →
- Unclear
- Whether working attack code is public (Exploit-DB, Metasploit, Nuclei or GitHub). Public code makes attacks easier.What do these mean? →
- None on Exploit-DB, Metasploit or GitHub
Summary
IBM Concert software is affected by a flaw that lets an attacker run arbitrary system commands on the host. The attack can be carried out remotely over the network, without logging in or any user action.
Written by anthropic/claude-haiku-5.5 from the sources below. Verify against them.
Read the original description
IBM Concert 1.0 through 3.0.1.1 contains components that allow potentially unsafe command execution, which could be exploited to run arbitrary system commands on the host.
cve.now Index
- Exploitation?/40Unknown. No CISA SSVC exploitation rating yet
- Exposure17/25No login or user action needed, reachable over the network without a login · Unknown: Advisories don't say whether default setups are affected
- Reach?/20Unknown. No tracked technology or package matched
- Severity9.8/10CVSS 9.8
- No patch0/5No signal
What would change the score
- Would score about 72 if added to CISA KEV
- Would score about 67 if CISA's SSVC rates exploitation active
- Would score about 32 if advisories confirm default setups are exposed
What to do
Upgrade to a fixed version: 3.1.0.
Timeline
- CVE published
- First seen by cve.now
- Posted on X by cve.now
Affected versions
- IBM Concert
From 1.0 · through 3.0.1.1
Evidence 1
- Patch
Corrections
None so far.
Something wrong on this page? Report an error. Every fix is listed here.
Questions about CVE-2026-15266
Is CVE-2026-15266 being exploited?
It is not in CISA's Known Exploited Vulnerabilities catalog, and CISA's SSVC assessment does not mark exploitation as active. That does not mean it has not been attacked: vendors and researchers can report attacks before CISA lists them. No public exploit code is tracked.Source: cve.now feed data
Which versions are affected by CVE-2026-15266?
Concert: from 1.0 through 3.0.1.1.Source: cve.now feed data