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CVE Record

CVE-2019-25041: Unbound before 1.9.5 allows an assertion failure via a compressed name in dname_pkt_copy.

Unbound before 1.9.5 allows an assertion failure via a compressed name in dname_pkt_copy. NOTE: The vendor disputes that this is a vulnerability. Although the code may be vulnerable, a running Unbound installation cannot be remotely or locally exploited

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysislow

Security readout for executives and security teams

Plain-English summary

This CVE describes a possible assertion failure in Unbound before 1.9.5 when handling a compressed DNS name. The CVE record notes the vendor disputes exploitability and says a running Unbound installation cannot be exploited remotely or locally. Business urgency appears low unless inventory shows obsolete Unbound packages or vendor appliances requiring updates.

Executive priority

Treat as low operational priority unless asset inventory shows obsolete Unbound or affected vendor products. The main action is hygiene: confirm versions, apply supported vendor updates, and document the vendor dispute and lack of exploitation evidence.

Technical view

The reported issue is an assertion failure in Unbound's dname_pkt_copy handling of compressed names. Public metadata does not provide CVSS, CWE, or detailed affected CPEs. The key qualifier is the vendor dispute: the code may be vulnerable, but the CVE text says installed Unbound instances are not practically exploitable.

Likely exposure

Exposure is limited to environments running Unbound before 1.9.5 or products bundling that code. The source bundle does not identify specific affected CPEs. NetApp and Debian references indicate downstream tracking, but exact product impact must be confirmed from vendor advisories.

Exploitation context

No KEV listing is present, and the provided sources do not support active exploitation. The CVE record explicitly says the vendor disputes that this is a vulnerability and states running installations cannot be remotely or locally exploited.

Researcher notes

Evidence is thin: no CVSS, CWE, CPE list, exploit status, or technical proof is included in the bundle. The important research point is reconciling the audit finding with the vendor's statement that production Unbound cannot be exploited remotely or locally.

Mitigation direction

  • Inventory systems running Unbound or vendor products that bundle Unbound.
  • Upgrade affected Unbound packages to vendor-supported fixed releases when available.
  • Follow Debian LTS guidance for Debian-packaged Unbound 1.9 deployments.
  • Check NetApp advisory applicability before prioritizing appliance remediation.
  • Document any accepted risk where vendor guidance confirms non-exploitability.

Validation and detection

  • Confirm deployed Unbound versions across servers, containers, and appliances.
  • Check package changelogs or vendor advisories for CVE-2019-25041 coverage.
  • Verify whether any NetApp products in use match the advisory scope.
  • Confirm no unsupported Unbound versions remain internet-facing or production-critical.
  • Record vendor dispute status in the vulnerability exception or closure notes.
Prepared
Confidence
medium
Sources
5

Public sources used

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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CVE-2019-25041 mapping review

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
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.

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

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
n/an/an/aListed
Weakness

CWE details

No CWE listed

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