CVE-2022-36507Public exploit

Root shell via AddWlanMacList stack overflow

Published Aug 25, 2022 · Updated Aug 3, 2024

Stack overflow in H3C Magic NX18 Plus NX18PV100R003 allows attackers to obtain a root shell via the AddWlanMacList HTTP request. The AddWlanMacList function parses the param value with greedy sscanf patterns, allowing oversized fields to overwrite stack data. Exploitation requires access to the router web interface; crafted input can crash the service or provide root execution.

CVSS severity7.8
High
EPSS probability0.80%
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 H3C Magic NX18 Plus NX18PV100R003 allows attackers to obtain a root shell via the AddWlanMacList HTTP request. The AddWlanMacList function parses the param value with greedy sscanf patterns, allowing oversized fields to overwrite stack data. Exploitation requires access to the router web interface; crafted input can crash the service or provide root execution.

The record

CVE
CVE-2022-36507
Published
Aug 25, 2022
Updated
Aug 3, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-787
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 25, 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 vectorlocal
Required privilegesauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.8NVDCVSS:3.1/AV:L/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)
Vectorlocal
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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