CVE-2023-23461Network attack vector

Process crash via undisclosed access violation

Published Feb 15, 2023 · Updated Mar 19, 2025

Access violation in Hasherezade LibPeConv before commit b076013 allows remote attackers to crash a consuming process via crafted input. The published CVE record identifies no affected function or invalid memory operation, and the upstream repository does not publicly tie the fixing commit to a code-level cause. Exposure depends on an application passing attacker-controlled PE data to the embedded library; LibPeConv itself provides no network service.

CVSS severity9.8
Critical
EPSS probability0.67%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Access violation in Hasherezade LibPeConv before commit b076013 allows remote attackers to crash a consuming process via crafted input. The published CVE record identifies no affected function or invalid memory operation, and the upstream repository does not publicly tie the fixing commit to a code-level cause. Exposure depends on an application passing attacker-controlled PE data to the embedded library; LibPeConv itself provides no network service.

The record

CVE
CVE-2023-23461
Published
Feb 15, 2023
Updated
Mar 19, 2025
Vendor
Hasherezade
Product
LibPeConv
Classifications
T1499.004
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 15, 2023CVE 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=before commit b076013 (30/11/2022). <Update to the latest version

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Hasherezade · LibPeConvversion=before commit b076013 (30/11/2022). <Update to the latest version

Published CVSS scores

9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.8CISA-ADPCVSS: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 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

T1499.004Endpoint Denial of Service: Application or System Exploitation

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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