CVE-2021-44320Network attack vector

Service interruption via IPv4 packet flooding

Published Sep 4, 2026 · Updated Sep 4, 2026

Denial of service in Parrot AR.Drone 1 and 2 allows remote attackers to interrupt video streaming and control via IPv4 floods. The device does not limit or otherwise withstand high-rate IPv4 SYN and UDP traffic, causing video and control services to stop responding. Network reachability to the drone is required; the documented effect is loss of streaming and control, not code execution or data access.

CVSS severityUnavailable
Unscored
EPSS probability0.43%
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 Parrot AR.Drone 1 and 2 allows remote attackers to interrupt video streaming and control via IPv4 floods. The device does not limit or otherwise withstand high-rate IPv4 SYN and UDP traffic, causing video and control services to stop responding. Network reachability to the drone is required; the documented effect is loss of streaming and control, not code execution or data access.

The record

CVE
CVE-2021-44320
Published
Sep 4, 2026
Updated
Sep 4, 2026
Vendor
Unknown vendor
Product
Unknown product
Classifications
T1498
Attack vector
network
Privileges
Unavailable

Timeline

How it unfolded

  1. Sep 4, 2026CVE publishedPublication date reported by the CVE source.
  2. Sep 4, 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 vectornetwork
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.

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No observations available

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

Weakness, pattern, technique

T1498Network Denial of Service

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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