CVE-2023-41557Network attack vector

Unauthenticated memory corruption via addressNat parameters

Published Aug 30, 2023 · Updated Oct 1, 2024

Stack overflow in Tenda AC7 1.0 V15.03.06.44 and AC5 1.0RTL V15.03.06.28 allows remote attackers to corrupt router memory. The /goform/addressNat handler fails to bound the entrys and mitInterface parameters before they reach stack storage. No authentication or user interaction is required; the corruption can crash the router or alter control flow, but the exact unsafe copy is undisclosed.

CVSS severity9.8
Critical
EPSS probability0.84%
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 Tenda AC7 1.0 V15.03.06.44 and AC5 1.0RTL V15.03.06.28 allows remote attackers to corrupt router memory. The /goform/addressNat handler fails to bound the entrys and mitInterface parameters before they reach stack storage. No authentication or user interaction is required; the corruption can crash the router or alter control flow, but the exact unsafe copy is undisclosed.

The record

CVE
CVE-2023-41557
Published
Aug 30, 2023
Updated
Oct 1, 2024
Vendor
Shenzhen Tenda Technology Co., Ltd.
Product
AC7
Classifications
CWE-787, T1210
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 30, 2023CVE publishedPublication date reported by the CVE source.
  2. Oct 1, 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?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=1.0_v15.03.06.44

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Shenzhen Tenda Technology Co., Ltd. · AC7version=1.0_v15.03.06.44
Shenzhen Tenda Technology Co., Ltd. · AC5version=1.0rtl_v15.03.06.28

Published CVSS scores

9.8NIST NVDCVSS: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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-787Out-of-bounds Write
T1210Exploitation of Remote Services

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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