Is CVE-2026-8631 actively exploited?

No active exploitation of CVE-2026-8631 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-8631 be exploited remotely?

Yes. CVE-2026-8631 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-8631?

CVE-2026-8631 has a CVSS score of 9.8 (CRITICAL).

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CRITICAL

CVE-2026-8631

CWE-122Published: May 20, 2026· Updated: May 21, 2026

9.8

CVSS v3.1

EPSS:0.02%probability of exploitation in 30 daysPercentile:4.7th

Official Description

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 an integer overflow in the hpcups processing path when handling crafted print data.

NVD Source

Risk Analysis

This critical vulnerability in the HP Linux Imaging and Printing Software (HPLIP) involves an integer overflow during the processing of crafted print data. Successful exploitation could lead to escalation of privileges or arbitrary code execution. With a CVSS score of 9.8, this flaw poses a significant risk to system security.

No public exploit is currently known for this vulnerability. The vulnerability is remotely exploitable by an unauthenticated attacker over the network with low attack complexity.

Recommended Action

Users of HP Linux Imaging and Printing Software should apply updates as soon as they become available from HP. Regularly update all system software and drivers to mitigate known vulnerabilities.

Generated by the CTIWATCH analysis pipeline from this CVE's metadata (CVSS, EPSS, KEV status, exploit intelligence). Verify against vendor advisories before acting.

Technical Analysis

CVE-2026-8631 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.