LiveActive security incident?Get immediate response
CVE Record

CVE-2019-20914: An issue was discovered in GNU LibreDWG through 0.9.3.

An issue was discovered in GNU LibreDWG through 0.9.3. There is a NULL pointer dereference in the function dwg_encode_common_entity_handle_data in common_entity_handle_data.spec.

UnknownCVSS not scoredNot KEV-listedUpdated
Discuss exposureBack to CVEs
Glexia's TakeAutomated analysisunknown

Security readout for executives and security teams

Plain-English summary

GNU LibreDWG through 0.9.3 has a null pointer dereference that can likely crash affected processing when the vulnerable code path is reached. The public record does not provide CVSS, confirmed exploitation, or a named fixed release, so business urgency depends on whether LibreDWG processes untrusted DWG content in your environment.

Executive priority

Handle as conditional priority: low urgency for unused or trusted-only tooling, higher priority for internet-facing or customer-facing DWG processing. Evidence is incomplete, so avoid emergency escalation unless local exposure confirms untrusted input reaches LibreDWG.

Technical view

CVE-2019-20914 describes a NULL pointer dereference in dwg_encode_common_entity_handle_data in common_entity_handle_data.spec. The affected scope in the description is GNU LibreDWG through 0.9.3. Public references include a GitHub issue and a fixing commit, but the source bundle does not include CVSS, CWE, exploit confirmation, or release advisory details.

Likely exposure

Exposure is most plausible where GNU LibreDWG through 0.9.3 is embedded in services, tools, or batch jobs that encode or process DWG files, especially files supplied by users, customers, or external partners.

Exploitation context

The bundle does not show CISA KEV listing or any cited active exploitation. The documented weakness is a null pointer dereference, which typically creates availability risk rather than data theft, but reachable impact is not fully documented here.

Researcher notes

The public CVE text is sparse. Do not assume remote code execution, affected downstream products, or a specific fixed version from the supplied data. The most useful next research step is correlating the GitHub issue and commit with release history and local package builds.

Mitigation direction

  • Inventory systems and applications that include GNU LibreDWG.
  • Identify any LibreDWG versions through 0.9.3.
  • Check LibreDWG project guidance for a fixed release containing the referenced commit.
  • Prioritize upgrades where untrusted DWG files are processed.
  • Restrict untrusted DWG processing until remediation is confirmed.

Validation and detection

  • Confirm deployed LibreDWG version and build provenance.
  • Verify whether the referenced fixing commit is present in deployed builds.
  • Map DWG processing workflows that accept external files.
  • Review crash telemetry for LibreDWG processing failures.
  • Retest affected workflows after upgrading or rebuilding.
Prepared
Confidence
medium
Sources
4

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

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

cve · low confidence lookup

CVE-2019-20914 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
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
3Source 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.