CVE-2024-22770

Service interruption via network amplification

Published Jan 23, 2024 · Updated May 22, 2025

Improper input validation in Hitron Systems DVR HVR-16781 1.03 through 4.02 allows remote attackers to interrupt service. The CNA maps the behavior to network amplification but does not disclose the affected input, processing locus, or validation error. The device must retain its default administrator credentials; published impact is limited to availability, without reported data disclosure or modification.

CVSS severity7.4
High
EPSS probability0.50%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper input validation in Hitron Systems DVR HVR-16781 1.03 through 4.02 allows remote attackers to interrupt service. The CNA maps the behavior to network amplification but does not disclose the affected input, processing locus, or validation error. The device must retain its default administrator credentials; published impact is limited to availability, without reported data disclosure or modification.

The record

CVE
CVE-2024-22770
Published
Jan 23, 2024
Updated
May 22, 2025
Vendor
Hitron Systems
Product
DVR HVR-16781
Classifications
CWE-798, CWE-20, CAPEC-490, T1498.002
Attack vector
adjacent
Privileges
Unavailable

Timeline

How it unfolded

  1. Jan 23, 2024CVE publishedPublication date reported by the CVE source.
  2. May 22, 2025Record 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=1.03 <=4.02 changes=[{"at":"4.03","status":"unaffected"}]

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesUnavailable in this record.

What is affected?

Hitron Systems · DVR HVR-16781version=1.03 <=4.02 changes=[{"at":"4.03","status":"unaffected"}]

Published CVSS scores

7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
7.4KrCERT/CCCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/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.

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)
Vectoradjacent
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-798Use of Hard-coded Credentials
CWE-20Improper Input Validation
CAPEC-490Amplification
T1498.002Network Denial of Service: Reflection Amplification

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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