PatchTheCEVCVE-2026-102917: IBM i 7.3, 7.4, 7.5, and 7.6 is vulnerable to an authenticated attacker elevating their privilege
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Routine
HIGH 7.8DOWNGRADE
CVE-2026-102917 is a high-severity flaw (CVSS 7.8) affecting i. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
IBM i 7.3, 7.4, 7.5, and 7.6 is vulnerable to an authenticated attacker elevating their privilege. A bad actor could exploit this vulnerability to perform operations with QSECOFR/Root authority on the system.
Why this priority
- High severity
No fix is published yet: follow the downgrade or mitigation steps.
Risk facts
| CVSS score | 7.8 (High) |
| Attack vector | Local |
| Attack complexity | Low |
| Privileges needed | Low |
| User interaction | None |
| EPSS exploit chance | 0.1% (top 99%) |
| CISA exploited list | No |
| Weakness | CWE-269 |
| Published | 2026-10-16 |
| Last modified | 2026-10-23 |
Publisher (CNA): IBM Corporation · Vendor: ibm
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
ibm i DOWNGRADE
Affected: 7.3 · 7.4 · 7.5 · 7.6
Fixed in: no fixed release known
Safe to downgrade to: a release before 7.3
1. Check installed version
apt-cache policy i || rpm -q i || i --version
2. No fixed release: DOWNGRADE to a release before 7.3 (Debian / Ubuntu)
apt-cache madison i
sudo apt install i=<VERSION_BEFORE_7.3>
sudo apt-mark hold i
2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)
dnf --showduplicates list i
sudo dnf downgrade i-<VERSION_BEFORE_7.3>
sudo dnf versionlock add i
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.
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
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