CVE-2026-19910

Unauthenticated root code execution via unchecked installer signatures

Published Aug 14, 2026 · Updated Aug 14, 2026

Signature verification bypass in PAX Technology Q80 2.6.33.6690R allows remote attackers to execute arbitrary code over an adjacent network. The application installer accepts an application without properly verifying its cryptographic signature before installation. Adjacent-network access requires no authentication, but root-context execution depends on chaining this flaw with other vulnerabilities.

CVSS severity7.5
High
EPSS probability0.19%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Signature verification bypass in PAX Technology Q80 2.6.33.6690R allows remote attackers to execute arbitrary code over an adjacent network. The application installer accepts an application without properly verifying its cryptographic signature before installation. Adjacent-network access requires no authentication, but root-context execution depends on chaining this flaw with other vulnerabilities.

The record

CVE
CVE-2026-19910
Published
Aug 14, 2026
Updated
Aug 14, 2026
Vendor
PAX Technology
Product
Q80
Classifications
CWE-347
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 14, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 14, 2026Record 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=2.6.33.6690R

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

PAX Technology · Q80version=2.6.33.6690R

Published CVSS scores

7.5Zero Day InitiativeCVSS:3.0/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

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.

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No observations available

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

Weakness, pattern, technique

CWE-347Improper Verification of Cryptographic Signature

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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