CVE-2026-85506
Description
A flaw was found in FreeIPMI. A stack-based buffer overflow in the ipmi-oem utility can lead to arbitrary code execution. This vulnerability can be exploited by a local user who executes a specially crafted ipmi-oem command, potentially when processing untrusted data from a remote source.
Statement
A stack-based buffer overflow vulnerability in the ipmi-oem utility of FreeIPMI could allow a local attacker to execute arbitrary code. To exploit this moderate-severity flaw, a local user must be tricked into running a specially crafted command that processes untrusted data. The requirement for local access and active user interaction significantly increases the overall complexity of the attack.
Mitigation
To mitigate this vulnerability, implement robust boundary checks before copying data to ensure the input size does not exceed the allocated stack buffer capacity. Developers should replace unsafe, unbounded memory functions (like strcpy or sprintf) with safe, length-restricted alternatives (such as strncpy or snprintf). Furthermore, deploying the application in environments that enforce compiler-based protections like stack canaries and Address Space Layout Randomization (ASLR) will prevent successful code execution
Common Vulnerability Scoring System (CVSS) Score Details
Info alert:Important note
CVSS scores for open source components depend on vendor-specific factors (e.g. version or build chain). Therefore, Red Hat's score and impact rating can be different from NVD and other vendors. Red Hat remains the authoritative CVE Naming Authority (CNA) source for its products and services (see Red Hat classifications).
The following CVSS metrics and score provided are preliminary and subject to review.
CVSS v3 Score Breakdown
| Red Hat | NVD | cve.org | |
|---|---|---|---|
| Base Score | 7.5 | N/A | 9.8 |
| Attack Vector | Network | N/A | Network |
| Attack Complexity | High | N/A | Low |
| Privileges Required | None | N/A | None |
| User Interaction | Required | N/A | None |
| Scope | Unchanged | N/A | Unchanged |
| Confidentiality | High | N/A | High |
| Integrity Impact | High | N/A | High |
| Availability Impact | High | N/A | High |
Vector
Red Hat: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
cve.org: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Understanding the Weakness (CWE)
Availability
Technical Impact: Modify Memory; DoS: Crash, Exit, or Restart; DoS: Resource Consumption (CPU); DoS: Resource Consumption (Memory)
Buffer overflows generally lead to crashes. Other attacks leading to lack of availability are possible, including putting the program into an infinite loop.
Integrity,Confidentiality,Availability,Access Control
Technical Impact: Modify Memory; Execute Unauthorized Code or Commands; Bypass Protection Mechanism
Buffer overflows often can be used to execute arbitrary code, which is usually outside the scope of a program's implicit security policy.
Integrity,Confidentiality,Availability,Access Control,Other
Technical Impact: Modify Memory; Execute Unauthorized Code or Commands; Bypass Protection Mechanism; Other
When the consequence is arbitrary code execution, this can often be used to subvert any other security service.
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