This Power System update is being released to address
- Exploited
- No known exploitation
- Fix
- Fix or patch referenced
- Who is exposed
- Not reported
Do first: Apply the patch listed under Evidence.
- Published
- 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? →
- 7/100 · provisional
- 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
The IBM Power Systems firmware is affected by a flaw caused by improper validation of input length. An attacker on an adjacent network, without logging in or any user action, can trigger a denial of service that takes the system down.
Written by anthropic/claude-haiku-5.5 from the sources below. Verify against them.
Read the original description
IBM Power Systems Firmware FW1060.00 through FW1060.81, OP940.00 through OP940.A2, OP910.00 through OP910.95, and OP940.00 through OP940.82 could allow a remote attacker to cause a denial of service due to improper validation of input length.
cve.now Index
- Exploitation?/40Unknown. No CISA SSVC exploitation rating yet
- Exposure?/25Unknown. No advisory context yet
- Reach?/20Unknown. No tracked technology or package matched
- Severity6.5/10CVSS 6.5
- No patch0/5No signal
What would change the score
- Would score about 62 if added to CISA KEV
- Would score about 57 if CISA's SSVC rates exploitation active
- Would score about 29 if advisories confirm default setups are exposed
What to do
Apply the patch listed under Evidence.
Timeline
- CVE published
- First seen by cve.now
Affected versions
- IBM OPENBMC
From FW1060.00 · through FW1060.81; From OP940.00 · through OP940.A2; From OP910.00 · through OP910.95
- IBM Power Hardware Management Console
From OP940.00 · through OP940.82
Evidence 1
- Patch
Corrections
None so far.
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Questions about CVE-2026-17427
Is CVE-2026-17427 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-2026-17427?
OPENBMC: from FW1060.00 through FW1060.81; from OP940.00 through OP940.A2; from OP910.00 through OP910.95. Power Hardware Management Console: from OP940.00 through OP940.82.Source: cve.now feed data