CVE-2019-18916

Local client privilege escalation

Published Nov 9, 2021 · Updated Aug 5, 2024

Privilege escalation in HP Color LaserJet Pro MFP M277 series before 14.0.15344.534 allows local users to gain elevated client privileges. HP has not published the affected client component or the operation that mishandles input. Exploitation requires low privileges, high complexity, and user interaction; successful attacks alter client privileges and can expose or disrupt client data.

CVSS severity6.6
Medium
EPSS probability0.25%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Privilege escalation in HP Color LaserJet Pro MFP M277 series before 14.0.15344.534 allows local users to gain elevated client privileges. HP has not published the affected client component or the operation that mishandles input. Exploitation requires low privileges, high complexity, and user interaction; successful attacks alter client privileges and can expose or disrupt client data.

The record

CVE
CVE-2019-18916
Published
Nov 9, 2021
Updated
Aug 5, 2024
Vendor
HP Inc.
Product
HP Color LaserJet Pro MFP M277 series
Classifications
CWE-269, T1068
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Nov 9, 2021CVE publishedPublication date reported by the CVE source.
  2. Aug 5, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=before 14.0.15344.534

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

HP Inc. · HP Color LaserJet Pro MFP M277 seriesversion=before 14.0.15344.534

Published CVSS scores

7.8NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
6.6HP Inc.CVSS:3.0/AV:L/AC:H/PR:L/UI:R/S:C/C:L/I:H/A:L
4.6NIST NVDAV:L/AC:L/Au:N/C:P/I:P/A:P

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-269Improper Privilege Management
T1068Exploitation for Privilege Escalation

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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