PatchTheCEVCVE-2026-17445: IBM i 7.6, 7.5, 7.4, and 7.3 could allow a remote authenticated attacker to bypass security restrictions due t
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This month
HIGH 8.2REMOTEDOWNGRADE
CVE-2026-17445 is a high-severity flaw (CVSS 8.2) affecting i. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
IBM i 7.6, 7.5, 7.4, and 7.3 could allow a remote authenticated attacker to bypass security restrictions due to improper validation of an attacker-supplied user profile name.
Why this priority
- High severity
- Remotely exploitable, no login, no user action
A fixed release or distro patch exists.
Risk facts
| CVSS score | 8.2 (High) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | None |
| User interaction | None |
| EPSS exploit chance | 0.4% (top 65%) |
| CISA exploited list | No |
| Weakness | CWE-250 |
| Published | 2026-08-12 |
| 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.
Exact fixes by distribution
A distro patch exists: prefer upgrading over downgrading.
Fedora 46 · clementine · FIXED · 1.4.2-1.fc46 · FEDORA-2026-3e748ef4d3 · source
sudo dnf upgrade --advisory=FEDORA-2026-3e748ef4d3
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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