CVE-2025-49091
Description
A flaw was found in Konsole. The application's handling of URLs using scheme handlers like ssh://, telnet://, or rlogin:// allows a remote attacker to trigger arbitrary code execution. This issue occurs when a user opens a specially crafted URL, bypassing authentication checks. Consequently, a malicious URL can be used to execute commands on the system.
Statement
This vulnerability was rated as an IMPORTANT vulnerability because the Konsole's handling of URLs containing scheme handlers such as ssh://, telnet://, or rlogin://. When a user opens a specially crafted URL, Konsole automatically processes the scheme without adequate validation or authentication enforcement. This behavior allows a remote attacker to craft malicious URLs that can trigger arbitrary command execution on the user’s system, resulting in a severe compromise of system confidentiality, integrity, and availability.
Mitigation
Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability.
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).
CVSS v3 Score Breakdown
| Red Hat | NVD | cve.org | |
|---|---|---|---|
| Base Score | 8.3 | N/A | 8.2 |
| Attack Vector | Network | N/A | Network |
| Attack Complexity | High | N/A | High |
| Privileges Required | None | N/A | None |
| User Interaction | Required | N/A | Required |
| Scope | Changed | N/A | Changed |
| Confidentiality | High | N/A | High |
| Integrity Impact | High | N/A | High |
| Availability Impact | High | N/A | Low |
Vector
Red Hat: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H
cve.org: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:L
Understanding the Weakness (CWE)
Other
Technical Impact: Other; Alter Execution Logic
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