CVE-2026-2311

CRITICAL
INFO Priority: 0.02 BB Relevance: 80/100
Published: 2026-04-30 Modified: 2026-10-26 First seen: 2026-10-29 Status: active

Attack Surface

Network Low Complexity No Auth No Interaction Conf. Impact Integ. Impact

CVSS Vector Breakdown

AV: Network
AC: Low
PR: None
UI: None
S: Unchanged
C: High
I: High
A: High

Description

IBM i 7.6, 7.5, 7.4, 7.3, and 7.2 s vulnerable to privilege escalation caused by an invalid IBM i Web Administration GUI authorization check.  A malicious actor could cause user-controlled code to run with administrator privilege.

Weakness Classification (1)

Affected Software (5)

VendorProductVersion
ibm i 7.2
ibm i 7.3
ibm i 7.4
ibm i 7.5
ibm i 7.6

References & Advisories (1)

Bug Bounty Relevance

80 / 100
✓ Network accessible
✓ No authentication
✓ Low complexity
✓ No user interaction

CVSS Score

9.8 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS — Exploitation Probability

0.20%
Raw Score 0.001980
Percentile 9.6%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00198
2026-10-28
0.00198

Intelligence Sources

nvd ref →