CVE-2023-35863Public exploit

Network traffic interception via driver handle race

Published Jul 5, 2023 · Updated Nov 20, 2024

Race condition in MADEFORNET HTTP Debugger 9.12 and earlier allows local users to intercept system-wide network traffic. The Windows service launches the NetFilterSDK driver without first setting the seclevel registry key, leaving a timing window in which another process can win the driver's single-handle lock. Execution of an unprivileged application during driver startup is required; a successful race exposes raw TCP and UDP streams, including HTTPS traffic.

CVSS severity5.3
Medium
EPSS probability0.27%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Race condition in MADEFORNET HTTP Debugger 9.12 and earlier allows local users to intercept system-wide network traffic. The Windows service launches the NetFilterSDK driver without first setting the seclevel registry key, leaving a timing window in which another process can win the driver's single-handle lock. Execution of an unprivileged application during driver startup is required; a successful race exposes raw TCP and UDP streams, including HTTPS traffic.

The record

CVE
CVE-2023-35863
Published
Jul 5, 2023
Updated
Nov 20, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-362, T1040
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 5, 2023CVE publishedPublication date reported by the CVE source.
  2. Nov 20, 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 privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

5.3NIST NVDCVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:L/A:N

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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-362Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')
T1040Network Sniffing

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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