CVE-2023-46586Network attack vector

Memory disclosure and crash via unterminated CGI path

Published Oct 9, 2024 · Updated Mar 19, 2025

Memory-safety flaw in Weborf 0.17 through 0.20 allows remote attackers to expose memory or crash the server through CGI requests. When no CGI wrapper is configured, cgi_execute_child allocates strfile_len + 1 bytes, copies exactly strfile_len bytes with strncpy, never writes the final NUL, and passes the unterminated buffer to execl as the executable path. CGI support must be enabled and a request must reach CGI execution; the published record reports confidentiality and availability effects, not data modification.

CVSS severity9.1
Critical
EPSS probability0.63%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Memory-safety flaw in Weborf 0.17 through 0.20 allows remote attackers to expose memory or crash the server through CGI requests. When no CGI wrapper is configured, cgi_execute_child allocates strfile_len + 1 bytes, copies exactly strfile_len bytes with strncpy, never writes the final NUL, and passes the unterminated buffer to execl as the executable path. CGI support must be enabled and a request must reach CGI execution; the published record reports confidentiality and availability effects, not data modification.

The record

CVE
CVE-2023-46586
Published
Oct 9, 2024
Updated
Mar 19, 2025
Vendor
Weborf Project
Product
Weborf
Classifications
CWE-119, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 9, 2024CVE publishedPublication date reported by the CVE source.
  2. Mar 19, 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?

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

  1. Affected versionversion=0 <1.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Weborf Project · Weborfversion=0 <1.0

Published CVSS scores

9.1CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-119Improper Restriction of Operations within the Bounds of a Memory Buffer
T1190Exploit Public-Facing Application

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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