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CVE Record

CVE-2019-25637: X-NetStat Pro 5.63 Local Buffer Overflow via EggHunter

X-NetStat Pro 5.63 contains a local buffer overflow vulnerability that allows local attackers to execute arbitrary code by overwriting the EIP register through a 264-byte buffer overflow. Attackers can inject shellcode into memory and use an egg hunter technique to locate and execute the payload when the application processes malicious input through HTTP Client or Rules functionality.

HighCVSS 8.6Not KEV-listedUpdated
Glexia's TakeAutomated analysishigh

Security readout for executives and security teams

Plain-English summary

X-NetStat Pro 5.63 has a local memory corruption flaw that can let an attacker run code on the affected machine. This is not described as remotely exploitable over the internet, but it is serious where the software is installed on shared, exposed, or high-value workstations.

Executive priority

Treat as a high-priority endpoint risk if X-NetStat Pro 5.63 is present. Prioritize inventory and removal or vendor-supported remediation, especially on privileged administrator workstations, shared systems, or machines handling sensitive data.

Technical view

The issue is a CWE-787 out-of-bounds write/local buffer overflow in Freshsoftware X-NetStat Pro 5.63. Public descriptions say malicious input handled by HTTP Client or Rules functionality can overwrite EIP after a 264-byte overflow and lead to arbitrary code execution. ExploitDB and VulnCheck publish related references.

Likely exposure

Exposure is limited to systems running X-NetStat Pro 5.63. Risk is higher where untrusted local users can access the application or where users may process untrusted input through the affected functionality.

Exploitation context

The source bundle includes a public ExploitDB reference, so proof-of-concept information appears publicly available. The CVE is not marked KEV, and the provided sources do not state active exploitation in the wild.

Researcher notes

Evidence supports a local arbitrary code execution condition in version 5.63. Public exploit reference exists, but active exploitation is not established by the provided sources. No patch version or vendor mitigation is named in the source bundle.

Mitigation direction

  • Inventory systems for X-NetStat Pro 5.63 installations.
  • Check Freshsoftware guidance for an updated or fixed release.
  • Remove the software where it is unnecessary.
  • Restrict local access to systems running the application.
  • Avoid processing untrusted input through affected functionality until remediated.

Validation and detection

  • Confirm installed product name and version on endpoints.
  • Identify users or systems with access to the application.
  • Review whether HTTP Client or Rules functionality is used with untrusted input.
  • Monitor CVE, VulnCheck, and vendor pages for remediation updates.
Prepared
Confidence
medium
Sources
5

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

cwe · low confidence lookup

CWE-787: Exact CWE lookup

Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.

Open ATT&CK lookup
description · low confidence lookup

Execution behavior lookup

The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.

Open ATT&CK lookup
cve · low confidence lookup

CVE-2019-25637 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

Open ATT&CK lookup
Vulnerability profileCVE Program record
Severity
High
CVSS
8.6 (4.0)
Known Exploited
No
Published

Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

1CVSS vectors
0Timeline events
0ADP providers
4Source links

CVSS vector scores

1 official score

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
8.6CVSS 4.0HighCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:NPrimary CVE score

Vulnerability scoring details

Base CVSS 4.0 score

8.6High
CVSS 4.0 vector shape for CVE-2019-25637Attack VectorAttack ComplexityAttack RequirementsPrivileges RequiredUser InteractionVS ConfidentialityVS IntegrityVS AvailabilitySS ConfidentialitySS IntegritySS Availability

Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Attack Requirements
NonePresent
Privileges Required
NoneLowHigh
User Interaction
NonePassiveActive
VS Confidentiality
HighLowNone
VS Integrity
HighLowNone
VS Availability
HighLowNone
SS Confidentiality
HighLowNone
SS Integrity
HighLowNone
SS Availability
HighLowNone

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
FreshsoftwareNetStat Pro5.63 #Listed
Weakness

CWE details

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.

CWE-787 · source CWE mapping

Out-of-bounds Write

Out-of-bounds Write represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.