Security readout for executives and security teams
Plain-English summary
CVE-2020-23877 is a reported stack buffer overflow in pdf2xml v2.0. The business risk is highest where the tool processes PDFs from customers, partners, or email workflows. The source bundle does not provide CVSS, affected CPEs, fixed versions, or evidence of active exploitation.
Executive priority
Treat as targeted exposure work rather than an enterprise-wide emergency unless pdf2xml processes external PDFs in production.
Technical view
The CVE describes a stack buffer overflow in pdf2xml v2.0, specifically in getObjectStream. A public PoC reference and a GitHub issue are cited. The record lacks CWE mapping, CVSS scoring, CPE data, and remediation details, so exposure assessment depends on local confirmation of pdf2xml usage and version.
Likely exposure
Exposure is likely limited to environments that install or invoke pdf2xml v2.0, especially automated PDF conversion or analysis pipelines handling untrusted files.
Exploitation context
The source bundle cites a public PoC repository, but does not show KEV listing, active exploitation, weaponized campaigns, or exploitation prevalence.
Researcher notes
The record is sparse. The only technical detail is a stack buffer overflow in getObjectStream, with GitHub references. There is no source-provided CVSS, CWE, CPE, fixed version, or active exploitation evidence. Validate local reachability before assigning severity.
Mitigation direction
- Inventory systems, containers, and build scripts for pdf2xml v2.0 usage.
- Check the referenced project issue and vendor guidance for any fixed release or workaround.
- Avoid processing untrusted PDFs with affected pdf2xml until remediation is confirmed.
- Run PDF conversion in a sandboxed, least-privilege environment.
- Restrict network and filesystem access for any PDF processing worker.
Validation and detection
- Confirm whether pdf2xml v2.0 is installed or bundled in production workloads.
- Map every workflow that sends external PDFs into pdf2xml.
- Review crash logs around PDF ingestion and conversion jobs.
- Verify PDF processing workers run with isolation and least privilege.
- Track the cited GitHub issue for remediation status.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
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-2020-23877 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
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.
CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://github.com/Aurorainfinity/Poc/tree/master/pdf2xmlCVE reference · x_refsource_MISC
- https://github.com/kermitt2/pdf2xml/issues/15CVE reference · x_refsource_MISC
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.