Is CVE-2017-13649 actively exploited?

CVE-2017-13649 has no public evidence of in-the-wild exploitation as of 2025-04-20.

What is the CVSS score for CVE-2017-13649?

CVE-2017-13649 has a CVSS score of 5.5 (MEDIUM severity). Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

How do I patch CVE-2017-13649?

Patch guidance is available from unrealircd security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2017-13649.

Which products are affected by CVE-2017-13649?

1 product: unrealircd unrealircd.

CVE-2017-13649 - remediation guidance & executive summary

Description

UnrealIRCd 4.0.13 and earlier creates a PID file after dropping privileges to a non-root account, which might allow local users to kill arbitrary processes by leveraging access to this non-root account for PID file modification before a root script executes a "kill `cat /pathname`" command. NOTE: the vendor indicates that there is no common or recommended scenario in which a root script would execute this kill command.

CVSS Metrics

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector: local
Complexity: low
Privileges: low
User Action: none
Scope: unchanged
Confidentiality: none
Integrity: none
Availability: high
Weaknesses: CWE-665

Metadata

Primary Vendor: UNREALIRCD
Published: 8/23/2017
Last Modified: 4/20/2025
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

CVE-2017-13649

Description

CVSS Metrics

Metadata

Affected Products

Remediation Guidance

Executive Summary