CVE-2023-53949Public exploit

SYSTEM escalation via writable EmailAgent directory

Published Dec 19, 2025 · Updated Dec 19, 2025

Incorrect permissions in Persits Software AspEmail 5.6.0.2 and earlier allow local users to gain SYSTEM access through EmailAgent. The installation grants Everyone full control over the EmailAgent BIN directory, so a local user can replace the LocalSystem service executable. Message queuing and the EmailAgent service must be installed; service execution then runs the replacement with SYSTEM privileges.

CVSS severity8.5
High
EPSS probability0.13%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Incorrect permissions in Persits Software AspEmail 5.6.0.2 and earlier allow local users to gain SYSTEM access through EmailAgent. The installation grants Everyone full control over the EmailAgent BIN directory, so a local user can replace the LocalSystem service executable. Message queuing and the EmailAgent service must be installed; service execution then runs the replacement with SYSTEM privileges.

The record

CVE
CVE-2023-53949
Published
Dec 19, 2025
Updated
Dec 19, 2025
Vendor
Persits Software, Inc.
Product
AspEmail
Classifications
CWE-732, T1574.010
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Dec 19, 2025CVE publishedPublication date reported by the CVE source.
  2. Dec 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 <=5.6.0.2

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Persits Software, Inc. · AspEmailversion=0 <=5.6.0.2

Published CVSS scores

8.4VulnCheckCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
8.5VulnCheckCVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA: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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-732Incorrect Permission Assignment for Critical Resource
T1574.010Services File Permissions Weakness

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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