HP Color LaserJet Missing Authentication for Critical Function (CVE-2004-2439)

high Tenable OT Security Plugin ID 505327

Synopsis

The remote OT asset is affected by a vulnerability.

Description

The remote upgrade capability in HP LaserJet 4200 and 4300 printers does not require a password, which allows remote attackers to upgrade firmware.

This plugin only works with Tenable.ot.
Please visit https://www.tenable.com/products/tenable-ot for more information.

Solution

Refer to the vendor advisory.

Plugin Details

Severity: High

ID: 505327

File Name: tenable_ot_hp_CVE-2004-2439.nasl

Version: 1.2

Type: Remote

Family: Tenable.ot

Published: 4/20/2026

Updated: 4/21/2026

Supported Sensors: Tenable OT Security

Risk Information

VPR

Risk Factor: Low

Score: 3.6

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

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

CVSS Score Source: CVE-2004-2439

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

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

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

Vulnerability Information

CPE: cpe:/h:hp:laserjet_9040, cpe:/h:hp:laserjet_9050, cpe:/h:hp:laserjet_4200, cpe:/h:hp:laserjet_9000, cpe:/h:hp:laserjet_4300, cpe:/h:hp:laserjet_2500, cpe:/h:hp:laserjet_9500, cpe:/h:hp:laserjet_3000, cpe:/h:hp:laserjet_9055, cpe:/h:hp:laserjet_9065, cpe:/h:hp:color_laserjet_4600, cpe:/h:hp:laserjet_4100, cpe:/h:hp:laserjet_3700

Required KB Items: Tenable.ot/HP

Exploit Ease: No known exploits are available

Patch Publication Date: 12/31/2004

Vulnerability Publication Date: 12/31/2004

Reference Information

CVE: CVE-2004-2439

CWE: 306

Detections

Analytics