CVE-2019-25653Public exploit

Local application crash via oversized password input

Published Mar 30, 2026 · Updated Mar 30, 2026

Denial of service in Navicat for Oracle 12.1.15 allows local users to crash the Windows application through its connection dialog. The Oracle connection dialog accepts a 550-character password and processes it on confirmation without rejecting the oversized value, terminating the process. The user must be able to run the GUI and paste the payload into a locally configured Oracle connection; the demonstrated consequence is an application crash.

CVSS severity6.9
Medium
EPSS probability0.19%
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 Navicat for Oracle 12.1.15 allows local users to crash the Windows application through its connection dialog. The Oracle connection dialog accepts a 550-character password and processes it on confirmation without rejecting the oversized value, terminating the process. The user must be able to run the GUI and paste the payload into a locally configured Oracle connection; the demonstrated consequence is an application crash.

The record

CVE
CVE-2019-25653
Published
Mar 30, 2026
Updated
Mar 30, 2026
Vendor
PremiumSoft CyberTech Ltd.
Product
Navicat for Oracle
Classifications
CWE-620, T1499.004
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 30, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 30, 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?

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

  1. Affected versionversion=12.1.15

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

PremiumSoft CyberTech Ltd. · Navicat for Oracleversion=12.1.15

Published CVSS scores

6.9VulnCheckCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
5.5NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
6.2VulnCheckCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A: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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-620Unverified Password Change
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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