CVE-2026-18343
IBM i is Affected By An Improper Privilege Management Vulnerability
IBM i 7.3, 7.4, 7.5, and 7.6 could allow a local attacker to modify the BOOTP table due to improper authorization.
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- Low
- Integrity
- Low
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
IBM i is Affected By An Improper Privilege Management Vulnerability
IBM i 7.3, 7.4, 7.5, and 7.6 could allow a local attacker to modify the BOOTP table due to improper authorization.
- Record
CVE-2026-18343- CVSS 3.1
- 4.4 Medium
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N - Weakness
- CWE-269
- Updated
- 2026-11-02
EUVDEUVD-2026-98179
IBM i 7.3, 7.4, 7.5, and 7.6 could allow a local attacker to modify the BOOTP table due to improper authorization.
- Record
EUVD-2026-98179- CVSS 3.1
- 4.4 Medium
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-q83c-9gx5-f3gp
IBM i 7.3, 7.4, 7.5, and 7.6 could allow a local attacker to modify the BOOTP table due to...
IBM i 7.3, 7.4, 7.5, and 7.6 could allow a local attacker to modify the BOOTP table due to improper authorization.
- Record
GHSA-q83c-9gx5-f3gp- CVSS 3.1
- 4.4 Medium
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N - Weakness
- CWE-269
- Updated
- 2026-11-02
NVD
IBM i 7.3, 7.4, 7.5, and 7.6 could allow a local attacker to modify the BOOTP table due to improper authorization.
- Record
CVE-2026-18343- CVSS 3.1
- 4.4 Medium
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N - Weakness
- CWE-269
- Updated
- 2026-11-02
Affected products
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-18343 is a medium vulnerability (CVSS 4.4) in Ibm I, published October 12, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.08%, the 0th percentile. No source names a fixed version.