CVE-2024-1191Public exploit

Application interruption via malformed HCF file

Published Feb 2, 2024 · Updated Aug 1, 2024

Denial of service in Hyper's CdCatalog 2.3.1 allows local users to interrupt the application by opening a crafted HCF file. The public proof of concept supplies a 22-byte file of repeated 0x41 and 0x42 pairs; the CNA has not disclosed which parser operation mishandles it. Exploitation requires local access to direct the application to open the file; available evidence establishes an application-level service interruption but does not distinguish a crash from a hang.

CVSS severity5.5
Medium
EPSS probability0.42%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Denial of service in Hyper's CdCatalog 2.3.1 allows local users to interrupt the application by opening a crafted HCF file. The public proof of concept supplies a 22-byte file of repeated 0x41 and 0x42 pairs; the CNA has not disclosed which parser operation mishandles it. Exploitation requires local access to direct the application to open the file; available evidence establishes an application-level service interruption but does not distinguish a crash from a hang.

The record

CVE
CVE-2024-1191
Published
Feb 2, 2024
Updated
Aug 1, 2024
Vendor
Hyper
Product
Hyper's CdCatalog
Classifications
CWE-404, T1499.004
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Feb 2, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 1, 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?

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

  1. Affected versionversion=2.3.1

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Hyper · Hyper's CdCatalogversion=2.3.1

Published CVSS scores

3.3VulDBCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
5.5NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
1.7VulDBAV:L/AC:L/Au:S/C:N/I:N/A:P

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-404Improper Resource Shutdown or Release
T1499.004Application or System Exploitation

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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