CVE-2023-27802Network attack vector

Authenticated service interruption via EditvsList stack overflow

Published Apr 7, 2023 · Updated Feb 12, 2025

Stack overflow in H3C Magic R100 firmware V100R005 allows remote authenticated users to interrupt service via EditvsList. The /goform/aspForm handler fails to bound a crafted EditvsList value before storing it in stack memory, causing an out-of-bounds write. Administrative privileges are required, and the documented consequence is limited to service interruption without reported data disclosure or modification.

CVSS severity4.9
Medium
EPSS probability0.79%
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 R100 firmware V100R005 allows remote authenticated users to interrupt service via EditvsList. The /goform/aspForm handler fails to bound a crafted EditvsList value before storing it in stack memory, causing an out-of-bounds write. Administrative privileges are required, and the documented consequence is limited to service interruption without reported data disclosure or modification.

The record

CVE
CVE-2023-27802
Published
Apr 7, 2023
Updated
Feb 12, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-787, T1499
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Apr 7, 2023CVE publishedPublication date reported by the CVE source.
  2. Feb 12, 2025Record 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 privilegesadmin

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

4.9CISA-ADPCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
4.9NIST NVDCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/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
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-787Out-of-bounds Write
T1499Endpoint Denial of Service

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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