Cyber Resilience

CVE-2022-37055

Memory Safety in Dlink Go-Rt-Ac750 Firmware 1.01b03 … 2.00b02

CISA KEVActive ExploitationEUVD ExploitedPublic PoCMemory Safety
Published
28 August 2022
Modified
10 December 2025
KEV Added
08 December 2025
Patch / advisory
View advisory
CVSS Score v3.1 9.8
Click a component to see what it means
Raw vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS Score 0.57 99th percentile
Risk Priority 97 floored blend · peak EPSS

Summary

CVE-2022-37055 is a critical-severity Classic Buffer Overflow (CWE-120) vulnerability in Dlink Go-Rt-Ac750 Firmware. Its CVSS base score is 9.8 (Critical).

Operationally, exploitation aligns with the MITRE ATT&CK technique Exploitation for Privilege Escalation (T1068); ranked in the top 1% of CVEs by exploit likelihood; CISA has added it to the Known Exploited Vulnerabilities catalog; a public proof-of-concept is referenced.

Deeper analysis AI-assisted summary

Synthesised by an AI model from the NVD description and linked references — a reading aid, not an authoritative source.

D-Link Go-RT-AC750 routers running firmware GORTAC750_revA_v101b03 and GO-RT-AC750_revB_FWv200b02 contain a buffer overflow vulnerability (CWE-120) reachable through the cgibin hnap_main component. The flaw carries a CVSS 3.1 base score of 9.8 and permits unauthenticated network access that can result in full confidentiality, integrity, and availability impact.

An attacker with network adjacency to an affected device can send crafted requests to the HNAP endpoint without credentials or user interaction, enabling arbitrary code execution or device takeover. The published EPSS score of 0.8048 (peak 0.8291) indicates sustained exploitation interest since disclosure.

D-Link has issued security publication SAP10308 and corresponding bulletins at supportannouncement.us.dlink.com and www.dlink.com/en/security-bulletin/ that address the affected firmware versions.

EU & UK References

Vulnerability Data

D-Link Go-RT-AC750 GORTAC750_revA_v101b03 and GO-RT-AC750_revB_FWv200b02 are vulnerable to Buffer Overflow via cgibin, hnap_main,

CWE(s)
CWE-120
KEV Date Added
08 December 2025

Related Threats

MITRE ATT&CK Enterprise Techniques

T1068 Exploitation for Privilege Escalation Privilege Escalation
Adversaries may exploit software vulnerabilities in an attempt to elevate privileges.
attack.mitre.org →
T1190 Exploit Public-Facing Application Initial Access
Adversaries may attempt to exploit a weakness in an Internet-facing host or system to initially access a network.
attack.mitre.org →
T1203 Exploitation for Client Execution Execution
Adversaries may exploit software vulnerabilities in client applications to execute code.
attack.mitre.org →
T1210 Exploitation of Remote Services Lateral Movement
Adversaries may exploit remote services to gain unauthorized access to internal systems once inside of a network.
attack.mitre.org →
T1212 Exploitation for Credential Access Credential Access
Adversaries may exploit software vulnerabilities in an attempt to collect credentials.
attack.mitre.org →
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2024-27683Same product: Dlink Go-Rt-Ac750
CVE-2024-22916Same product: Dlink Go-Rt-Ac750
CVE-2024-22852Same product: Dlink Go-Rt-Ac750
CVE-2023-26822Same product: Dlink Go-Rt-Ac750
CVE-2023-48842Same product: Dlink Go-Rt-Ac750
CVE-2023-34800Same product: Dlink Go-Rt-Ac750
CVE-2024-27684Same product: Dlink Go-Rt-Ac750
CVE-2025-45058Same vendor: Dlink
CVE-2023-39750Same vendor: Dlink
CVE-2024-9559Same vendor: Dlink

Affected Assets

dlink
go-rt-ac750 firmware
1.01b03, 2.00b02

Mitigating Controls

Control response

Prevent
Stop it (NIST 800-53)

—

Detect
Catch it (NIST detect / respond)

—

Harden
Shrink the surface (DISA STIG)

—

Validate
Prove the fix (OWASP ASVS)
  • V5.2.1

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

SC-27 Platform-independent Applications
addresses: CWE-120

Platform-independent managed code eliminates the need for unchecked native buffer copies that are the root cause of classic buffer overflows.

Mitigating Controls (NIST CSF 2.0) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.

PR.PS-06 mostly match
prevents

Secure development practices directly enforce bounds checking and input validation that prevent classic buffer overflows.

ID.RA-01 partial match
prevents

Vulnerability identification processes such as code review or scanning detect classic buffer overflows before exploitation.

PR.PS-02 partial match
prevents

Routine patching replaces vulnerable code containing unchecked buffer copies with corrected versions.

Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.

A.8.28 Secure coding mostly match
prevents

Secure coding directly requires bounds-checked memory operations, addressing the root cause of CWE-120.

A.8.29 Security testing in development and acceptance mostly match
finds

Security testing in development and acceptance can detect buffer overflows through fuzzing and static analysis, though it does not prevent them at the source.

A.8.25 Secure development life cycle partial match
prevents

Secure development life cycle mandates processes that can include input validation and bounds checking to prevent buffer overflows.

A.8.26 Application security requirements partial match
prevents

Application security requirements can specify input-size validation and safe buffer handling to mitigate classic buffer overflows.

A.8.27 Secure system architecture and engineering principles partial match
prevents

Secure system architecture and engineering principles promote defensive coding patterns that reduce the likelihood of unchecked buffer copies.

References