CVE-2026-52486

Local denial of service via SignedDocument verification

Published Sep 8, 2026 · Updated Sep 9, 2026

Denial of service in OpenDDS 3.33.x allows local users to interrupt DDS Security processing through SignedDocument verification. The public record identifies the verify function in SignedDocument.cpp but does not disclose the triggering input or the operation that fails. Exploitation requires local access to invoke document verification; the documented consequence is limited to loss of availability.

CVSS severityUnavailable
Unscored
EPSS probability0.07%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Denial of service in OpenDDS 3.33.x allows local users to interrupt DDS Security processing through SignedDocument verification. The public record identifies the verify function in SignedDocument.cpp but does not disclose the triggering input or the operation that fails. Exploitation requires local access to invoke document verification; the documented consequence is limited to loss of availability.

The record

CVE
CVE-2026-52486
Published
Sep 8, 2026
Updated
Sep 9, 2026
Vendor
Unknown vendor
Product
Unknown product
Classifications
T1499.004
Attack vector
local
Privileges
Unavailable

Timeline

How it unfolded

  1. Sep 8, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 9, 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?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectorlocal
Required privilegesUnavailable in this record.

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

No CVSS assessment is available in this record.

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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

T1499.004Application or System Exploitation

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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