CVE-2022-41526Public exploitNetwork attack vector

Authenticated memory corruption via crafted ip parameter

Published Oct 6, 2022 · Updated Aug 3, 2024

Stack-based buffer overflow in TOTOLINK NR1800X 9.1.0u.6279_B20210910 allows remote authenticated users to corrupt memory via a crafted ip value. Public records identify setDiagnosisCfg and its ip parameter but do not disclose the precise memory operation that overruns the stack buffer. Access to the authenticated management interface is required; exploitation can compromise device confidentiality, integrity, and availability.

CVSS severity8.8
High
EPSS probability0.92%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

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Summary

What happened

Stack-based buffer overflow in TOTOLINK NR1800X 9.1.0u.6279_B20210910 allows remote authenticated users to corrupt memory via a crafted ip value. Public records identify setDiagnosisCfg and its ip parameter but do not disclose the precise memory operation that overruns the stack buffer. Access to the authenticated management interface is required; exploitation can compromise device confidentiality, integrity, and availability.

The record

CVE
CVE-2022-41526
Published
Oct 6, 2022
Updated
Aug 3, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-787
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Oct 6, 2022CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

8.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/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.

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)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-787Out-of-bounds Write

Public exploit references

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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