CVE-2026-16687: IBM Power Systems Firmware FW1120.00, FW1110.00 through FW1110.30, FW1060.00 through FW1060.80, and FW950.00 t

Q: How do I fix CVE-2026-16687?

power system e1180 \(9080-heu\) firmware: upgrade to fw1110.31; power system e1080 \(9080-hex\) firmware: upgrade to fw1060.81; power system s922 \(9009-22g\) firmware: upgrade to fw950.h3. Exact commands for each OS are on this page.

Q: Is CVE-2026-16687 being exploited?

CVE-2026-16687 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-2026-16687 affect?

CVE-2026-16687 affects power system e1180 \(9080-heu\) firmware, power system e1080 \(9080-hex\) firmware, power system s922 \(9009-22g\) firmware. Severity is critical (CVSS 9.6). IBM Power Systems Firmware FW1120.00, FW1110.00 through FW1110.30, FW1060.00 through FW1060.80, and FW950.00 through FW950.H2 is affected by a vulnerability in the ASMI web interface. An unauthenticated attacker with network access can sen

Q: How urgent is CVE-2026-16687?

Priority 41/100. Critical severity

This month

CRITICAL 9.6UPGRADEUPGRADEUPGRADE

CVE-2026-16687 is a critical-severity flaw (CVSS 9.6) affecting power system e1180 \(9080-heu\) firmware, power system e1080 \(9080-hex\) firmware, power system s922 \(9009-22g\) firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

IBM Power Systems Firmware FW1120.00, FW1110.00 through FW1110.30, FW1060.00 through FW1060.80, and FW950.00 through FW950.H2 is affected by a vulnerability in the ASMI web interface. An unauthenticated attacker with network access can send the FSP a malformed request, allowing arbitrary code execution, giving the attacker full control over the managed system, resulting in a confidentiality, integrity, and availability impact.

Why this priority

Critical severity

A fixed release or distro patch exists.

Risk facts

CVSS score	9.6 (Critical)
Attack vector	Adjacent network
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.3% (top 72%)
CISA exploited list	No
Weakness	CWE-121
Published	2026-08-19
Last modified	2026-08-25

Publisher (CNA): IBM Corporation · Vendor: ibm

Last updated 2026-08-25 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-08-19 19:17 UTCPublished CVE record published
2026-08-25 14:31 UTCUpdated Record last modified

ibm power system e1180 \(9080-heu\) firmware UPGRADE

Affected: >= fw1110.00 and < fw1110.31 · fw1120.00

Fixed in: fw1110.31

Safe to downgrade to: a release before fw1110.00

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

ibm power system e1080 \(9080-hex\) firmware UPGRADE

Affected: >= fw1060.00 and < fw1060.81

Fixed in: fw1060.81

Safe to downgrade to: a release before fw1060.00

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

ibm power system s922 \(9009-22g\) firmware UPGRADE

Affected: >= fw950.00 and < fw950.h3

Fixed in: fw950.h3

Safe to downgrade to: a release before fw950.00

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

ibm power system h922 \(9223-22s\) firmware UPGRADE

Affected: >= fw950.00 and < fw950.h3

Fixed in: fw950.h3

Safe to downgrade to: a release before fw950.00

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

ibm power system s914 \(9009-41g\) firmware UPGRADE

Affected: >= fw950.00 and < fw950.h3

Fixed in: fw950.h3

Safe to downgrade to: a release before fw950.00

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

ibm power system s924 \(9009-42g\) firmware UPGRADE

Affected: >= fw950.00 and < fw950.h3

Fixed in: fw950.h3

Safe to downgrade to: a release before fw950.00

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

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-2026-16687?

power system e1180 \(9080-heu\) firmware: upgrade to fw1110.31; power system e1080 \(9080-hex\) firmware: upgrade to fw1060.81; power system s922 \(9009-22g\) firmware: upgrade to fw950.h3. Exact commands for each OS are on this page.

Is CVE-2026-16687 being exploited?

CVE-2026-16687 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-2026-16687 affect?

CVE-2026-16687 affects power system e1180 \(9080-heu\) firmware, power system e1080 \(9080-hex\) firmware, power system s922 \(9009-22g\) firmware. Severity is critical (CVSS 9.6). IBM Power Systems Firmware FW1120.00, FW1110.00 through FW1110.30, FW1060.00 through FW1060.80, and FW950.00 through FW950.H2 is affected by a vulnerability in the ASMI web interface. An unauthenticated attacker with network access can sen

How urgent is CVE-2026-16687?

Priority 41/100. Critical severity

Related CVEs

CVE-2026-93306 HIGH 7.1 UPGRADE UPGRADE IBM Server Firmware FW1120.00 through FW1120.01, FW1110.00 through FW1110.31, FW1060.00 through FW1060.81, and
CVE-2026-18848 HIGH 8.3 UPGRADE UPGRADE IBM Power Systems Firmware FW1120.00, FW1110.00 through FW1110.30, FW1060.00 through FW1060.80, and FW950.00 t
CVE-2026-16828 HIGH 7.6 UPGRADE UPGRADE IBM Power Systems Firmware FW1120.00, FW1110.00 through FW1110.30, FW1060.00 through FW1060.80, and FW950.00 t
CVE-2026-16832 HIGH 8.4 UPGRADE UPGRADE IBM Power Systems Firmware FW1120.00, FW1110.00 through FW1110.30, FW1060.00 through FW1060.80, and FW950.00 t
CVE-2026-16835 CRITICAL 9.6 UPGRADE UPGRADE IBM Power Systems Firmware FW1120.00, FW1110.00 through FW1110.30, FW1060.00 through FW1060.80, and FW950.00 t

References

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