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CVE Record

CVE-2018-25282: Nmap 7.70 Denial of Service via XML Entity Expansion

Nmap 7.70 contains a denial of service vulnerability that allows local attackers to crash the application by processing malicious XML files with exponential entity expansion. Attackers can create a crafted XML file with nested entity definitions and open it through ZenMap's scan import functionality to cause the program to consume excessive system resources and crash.

MediumCVSS 6.9Not KEV-listedUpdated
Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

This issue can crash ZenMap 7.70 when it processes a specially crafted XML scan file. It affects availability of the local application, not confidentiality or integrity. Business urgency is moderate because exploitation requires the vulnerable tool and a malicious file-handling scenario, but security teams may use ZenMap on administrative workstations.

Executive priority

Treat as a targeted operational stability issue for security tooling. Prioritize systems used by security teams and administrators, but do not treat it as an enterprise-wide remote compromise risk based on the provided sources.

Technical view

CVE-2018-25282 is a CWE-674 denial-of-service flaw in ZenMap 7.70 involving exponential XML entity expansion. A crafted XML file imported through ZenMap’s scan import functionality can consume excessive resources and crash the program. The provided CVSS v4 score is 6.9, with high availability impact and no listed confidentiality or integrity impact.

Likely exposure

Exposure is most likely on workstations or security operations systems running ZenMap 7.70, especially where users import XML scan files. This is not described as a remotely reachable network service vulnerability. The source bundle lists only ZenMap 7.70 as affected.

Exploitation context

An ExploitDB reference exists, but the CVE is not listed as KEV and the sources do not state active exploitation. Practical risk depends on whether a malicious XML file can be introduced and processed by ZenMap’s import feature.

Researcher notes

The record identifies XML entity expansion and CWE-674, but the source bundle does not name a fixed release or vendor mitigation. Avoid assuming broader Nmap components are affected beyond the listed ZenMap 7.70 import path. ExploitDB indicates public exploit information exists; KEV is false.

Mitigation direction

  • Check Nmap/ZenMap vendor guidance for fixed or supported versions.
  • Avoid importing XML scan files from untrusted or unknown sources.
  • Remove or isolate ZenMap 7.70 where scan import is unnecessary.
  • Run ZenMap with least-privileged user accounts.
  • Use endpoint controls to restrict risky file handling where feasible.

Validation and detection

  • Inventory systems for ZenMap or Nmap 7.70 installations.
  • Identify users or teams importing XML scan files into ZenMap.
  • Review recent ZenMap crashes or resource exhaustion events.
  • Confirm whether scan XML files come from trusted sources.
  • Track vendor advisories for a named fixed version or workaround.
Prepared
Confidence
high
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

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cwe · low confidence lookup

CWE-674: 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.

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cve · low confidence lookup

CVE-2018-25282 mapping review

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Vulnerability profileCVE Program record
Severity
Medium
CVSS
6.9 (4.0)
Known Exploited
No
Published

Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/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
6.9CVSS 4.0MediumCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:NPrimary CVE score

Vulnerability scoring details

Base CVSS 4.0 score

6.9Medium
CVSS 4.0 vector shape for CVE-2018-25282Attack 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:N/VI:N/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
ZenMapZenMap7.70Listed
Weakness

CWE details

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

CWE-674 · source CWE mapping

Uncontrolled Recursion

Uncontrolled Recursion represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.