CVE-2022-41528Public exploitNetwork attack vector

Authenticated memory corruption via unbounded SMS text

Published Oct 6, 2022 · Updated Aug 3, 2024

Stack overflow in TOTOLINK NR1800X firmware 9.1.0u.6279_B20210910 allows remote authenticated users to corrupt memory via crafted SMS text. The setSmsCfg function fails to bound the text parameter before placing its contents in a stack buffer. Valid management credentials and network reachability are required; the public record does not establish whether exploitation causes a crash or code execution.

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

What happened

Stack overflow in TOTOLINK NR1800X firmware 9.1.0u.6279_B20210910 allows remote authenticated users to corrupt memory via crafted SMS text. The setSmsCfg function fails to bound the text parameter before placing its contents in a stack buffer. Valid management credentials and network reachability are required; the public record does not establish whether exploitation causes a crash or code execution.

The record

CVE
CVE-2022-41528
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

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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 privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

8.8NIST National Vulnerability DatabaseCVSS: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.

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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
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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