Detections
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Echo: cups: security update to 2.4.18-1

medium Tenable Cloud Security Plugin ID 461630

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - OpenPrinting CUPS is an open source printing system for Linux and other Unix-like operating systems. In
 versions 2.4.16 and prior, a use-after-free vulnerability exists in the CUPS scheduler (cupsd) when
 temporary printers are automatically deleted. cupsdDeleteTemporaryPrinters() in scheduler/printers.c calls
 cupsdDeletePrinter() without first expiring subscriptions that reference the printer, leaving
 cupsd_subscription_t.dest as a dangling pointer to freed heap memory. The dangling pointer is subsequently
 dereferenced at multiple code sites, causing a crash (denial of service) of the cupsd daemon. With heap
 grooming, this can be leveraged for code execution. (CVE-2026-39316)

Solution

Update the cups library and its related packages to version 2.4.18-1 or later.

See Also

https://advisory.echohq.com/cve/CVE-2026-39316

Plugin Details

Severity: Medium

ID: 461630

Version: Revision 1.1

Type: Local

Published: 10/2/2026

Updated: 10/2/2026

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.71

CVSS v2

Risk Factor: Medium

Base Score: 4.9

Temporal Score: 3.8

Vector: CVSS2#AV:L/AC:L/Au:N/C:N/I:N/A:C

CVSS Score Source: CVE-2026-39316

CVSS v3

Risk Factor: Medium

Base Score: 6.2

Temporal Score: 5.6

Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

Vulnerability Information

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 4/8/2026

Vulnerability Publication Date: 4/7/2026

Reference Information

CVE: CVE-2026-39316