Multiple Vulnerabilities in IBM API Connect
- Exploited
- No known exploitation
- Fix
- Fixed in 12.1.1.3
- Who is exposed
- Not reported
Do first: Upgrade to a fixed version: 12.1.1.3.
- Last modified
- FIRST's estimate of the chance attackers exploit it in the next 30 days, updated daily.What do these mean? →
- 0.25% · 16th percentile
- 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? →
- 24/100 · 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 API Connect 12.1.0.0 through 12.1.1.2 could allow a remote authenticated attacker to bypass authentication due to improper certificate validation. A certificate check is not performed reliably in all cases, which could allow a connection to be accepted without proper authentication.
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
- Severity7.4/10CVSS 7.4
- No patch0/5No signal
What would change the score
- Would score about 69 if added to CISA KEV
- Would score about 64 if CISA's SSVC rates exploitation active
- Would score about 29 if advisories confirm default setups are exposed
What to do
Upgrade to a fixed version: 12.1.1.3.
Timeline
- CVE published
- First seen by cve.now
Affected versions
- IBM API Connect
From 12.1.0.0 · through 12.1.1.2
Evidence 1
- Patch
Corrections
None so far.
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Questions about CVE-2026-17337
Is CVE-2026-17337 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
What does this mean?
A certificate check is not performed reliably, so a connection can be accepted without proper authentication.Source: ibm.com, cve.org
Which versions are affected by CVE-2026-17337?
API Connect: from 12.1.0.0 through 12.1.1.2.Source: cve.now feed data
Am I affected, and how do I check?
IBM API Connect versions from 12.1.0.0 through 12.1.1.2 are listed as affected. To check an installed version, look at the API Connect version shown by its own installation or management interface.Source: ibm.com, cve.org