CVE-2022-37055Known exploitationNetwork attack vector

Remote code execution via HNAP buffer overflow

Published Aug 28, 2022 · Updated Dec 9, 2025

Buffer overflow in D-Link Go-RT-AC750 firmware 1.01b03 and 2.00b02 allows remote attackers to execute arbitrary code through the web interface. The cgibin hnap_main handler copies attacker-controlled request data into a fixed-size buffer without bounds checking, causing memory corruption. The flaw is reachable without authentication or user interaction and can provide device-level control, including traffic interception or service disruption.

CVSS severity9.8
Critical
EPSS probability55.53%
Next 30 days · Sep 16, 2026
Known exploitationReported
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Buffer overflow in D-Link Go-RT-AC750 firmware 1.01b03 and 2.00b02 allows remote attackers to execute arbitrary code through the web interface. The cgibin hnap_main handler copies attacker-controlled request data into a fixed-size buffer without bounds checking, causing memory corruption. The flaw is reachable without authentication or user interaction and can provide device-level control, including traffic interception or service disruption.

The record

CVE
CVE-2022-37055
Published
Aug 28, 2022
Updated
Dec 9, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-120, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 28, 2022CVE publishedPublication date reported by the CVE source.
  2. Dec 9, 2025Record updatedLatest update available in the CVE record.
  3. Dec 10, 2025Exploitation reportedReported exploitation in the wild

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 privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

9.8NISTCVSS:3.1/AV:N/AC:L/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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationReported
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-120Buffer Copy without Checking Size of Input
T1190Exploit Public-Facing Application

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.

Reported exploitation

Technologies

Your stack

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Your stack

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