CVE-2025-50329Network attack vector

Code execution via missing Mark-of-the-Web propagation

Published Jul 22, 2026 · Updated Jul 22, 2026

Mark-of-the-Web bypass in ConeXware PowerArchiver 22.00.11 and earlier allows remote attackers to execute code from a crafted archive. During extraction, PowerArchiver fails to propagate an archive's Mark-of-the-Web zone identifier to extracted files, so Windows does not retain that origin warning. Exploitation requires a user to download the archive, extract its contents, and execute the malicious file; code runs as the current user.

CVSS severity9.8
Critical
EPSS probability0.57%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Mark-of-the-Web bypass in ConeXware PowerArchiver 22.00.11 and earlier allows remote attackers to execute code from a crafted archive. During extraction, PowerArchiver fails to propagate an archive's Mark-of-the-Web zone identifier to extracted files, so Windows does not retain that origin warning. Exploitation requires a user to download the archive, extract its contents, and execute the malicious file; code runs as the current user.

The record

CVE
CVE-2025-50329
Published
Jul 22, 2026
Updated
Jul 22, 2026
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-693, T1203, T1204.002
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 22, 2026CVE publishedPublication date reported by the CVE source.
  2. Jul 22, 2026Record 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 privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-693Protection Mechanism Failure
T1203Exploitation for Client Execution
T1204.002User Execution: Malicious File

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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