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CVE Record

CVE-2026-8632: HP Linux Imaging and Printing Software – Potential Escalation of Privilege and Arbitrary Code Execution

A potential security vulnerability has been identified in the HP Linux Imaging and Printing Software. This potential vulnerability may allow escalation of privileges and/or arbitrary code execution via operating system command injection.

HighCVSS 8.5Not KEV-listedUpdated
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Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

CVE-2026-8632 is a high-severity flaw in HP Linux Imaging and Printing Software. A user who already has limited access to an affected Linux system may exploit command injection to gain additional privileges or execute arbitrary code, potentially compromising data and system availability.

Executive priority

Treat this as a high-priority endpoint and Linux fleet remediation item, especially on multi-user systems. It is not evidence of an unauthenticated remote compromise or confirmed active exploitation, but successful local exploitation could produce serious system-level business impact.

Technical view

The vulnerability is classified as operating-system command injection under CWE-77 and CWE-78. Its CVSS 4.0 score is 8.5: exploitation is local, low complexity, requires low privileges, and needs no user interaction. Successful exploitation may cause high confidentiality, integrity, and availability impact on the vulnerable system.

Likely exposure

Exposure is most likely on Linux endpoints or servers running an affected HPLIP package and accessible to low-privileged local users. The bundle’s affected-version value of “0” does not establish a usable version range, so administrators must confirm applicability through HP or distribution advisories.

Exploitation context

The supplied record does not establish active exploitation, and the CVE is not listed as a CISA KEV in the bundle. The local attack vector limits remote exposure, but shared Linux systems, managed workstations, and environments allowing untrusted local access warrant prompt attention.

Researcher notes

The record identifies potential command injection but does not describe the vulnerable component, input path, affected release range, exploit prerequisites beyond the CVSS vector, or patch details. Red Hat has published multiple related errata, but their precise product applicability must be verified from each advisory.

Mitigation direction

  • Review HP’s advisory for confirmed affected versions and the vendor-prescribed remediation.
  • Apply applicable Linux distribution security updates, including relevant Red Hat errata where deployed.
  • Prioritize shared systems and endpoints accessible to untrusted or low-privileged users.
  • If remediation is unavailable, consult vendor guidance for supported temporary risk-reduction measures.
  • Remove HPLIP from systems that do not require it, subject to operational change controls.

Validation and detection

  • Inventory installed HPLIP packages and record package versions, distributions, and system roles.
  • Compare installed versions with HP’s advisory and applicable distribution errata.
  • Confirm security updates installed successfully and systems now report the corrected package release.
  • Reassess shared systems for unnecessary local accounts or access paths.
  • Monitor HP and distribution advisories because the supplied affected-version mapping is incomplete.
Prepared
Confidence
medium
Sources
9

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

cwe · medium confidence lookup

CWE-77: Command execution behavior lookup

Command injection weaknesses can lead defenders to review execution techniques and command interpreter telemetry. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.

Open ATT&CK lookup
cwe · medium confidence lookup

CWE-78: Command execution behavior lookup

Command injection weaknesses can lead defenders to review execution techniques and command interpreter telemetry. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.

Open ATT&CK lookup
description · low confidence lookup

Execution behavior lookup

The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.

Open ATT&CK lookup
cve · low confidence lookup

CVE-2026-8632 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

Open ATT&CK lookup
Vulnerability profileCVE Program record
Severity
High
CVSS
8.5 (4.0)
Known Exploited
No
Published

Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

2CVSS vectors
5Timeline events
2ADP providers
15Source links

SSVC decision data

CISA-ADPCISA Coordinator
Timestamp
Version
2.0.3
Exploitation: noneAutomatable: noTechnical Impact: total

CVSS vector scores

2 official scores

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
8.5CVSS 4.0HighCVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N——hp
7.8CVSS 3.1HighCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H1.85.9redhat-SADP

Vulnerability scoring details

Base CVSS 4.0 score

8.5High
CVSS 4.0 vector shape for CVE-2026-8632Attack VectorAttack ComplexityAttack RequirementsPrivileges RequiredUser InteractionVS ConfidentialityVS IntegrityVS AvailabilitySS ConfidentialitySS IntegritySS Availability

Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Attack Requirements
NonePresent
Privileges Required
NoneLowHigh
User Interaction
NonePassiveActive
VS Confidentiality
HighLowNone
VS Integrity
HighLowNone
VS Availability
HighLowNone
SS Confidentiality
HighLowNone
SS Integrity
HighLowNone
SS Availability
HighLowNone

Vulnerability timeline

Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.

  1. CVE reservedCVE Program

    The CVE ID was reserved by the assigning CNA.

  2. ADP timelineredhat-SADP

    Made public.

  3. CVE publishedCVE Program

    The CVE record was published.

  4. ADP timelineredhat-SADP

    Reported to Red Hat.

  5. CVE updatedCVE Program

    The CVE record metadata indicates this as the latest update time.

ADP provider summaries

CISA-ADPCISA ADP Vulnrichment
other:ssvc
redhat-SADPHPLIP: HPLIP: Privilege escalation and arbitrary code execution via operating system command injection
other:Red Hat severity ratingcvssV3_1
  • 2026-05-20T21:01:09.901Z: Reported to Red Hat.
  • 2026-05-20T20:14:36.355Z: Made public.

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
HP IncHP Linux Imaging and Printing Software0affected
Weakness

CWE details

CWE-77CWE-78

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.

CWE-77 · source CWE mapping

Improper Neutralization of Special Elements used in a Command ('Command Injection')

Improper Neutralization of Special Elements used in a Command ('Command Injection') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.

Open CWE intelligenceSame-CWE CVEs
CWE-78 · source CWE mapping

Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.

Open CWE intelligenceSame-CWE CVEs