Security readout for executives and security teams
Plain-English summary
This flaw can crash SWFTools during local PDF processing by triggering a heap buffer overflow. Business urgency is moderate: exploitation requires someone or an automated workflow to process a malicious file, but successful abuse can disrupt availability of conversion services.
Executive priority
Treat as a targeted availability risk for document conversion services, not a broad remote compromise. Prioritize if SWFTools handles external files, sits in customer-facing workflows, or supports business-critical processing.
Technical view
CVE-2022-35098 is a CWE-787 heap-buffer overflow in SWFTools commit 772e55a2, in GfxICCBasedColorSpace::getDefaultColor(GfxColor*) within xpdf/GfxState.cc. CVSS 3.1 is 5.5 with local attack vector, required user interaction, no confidentiality or integrity impact, and high availability impact.
Likely exposure
Exposure is most likely where SWFTools is installed for PDF-to-SWF or related document conversion, especially automated ingestion of user-supplied PDFs. The CVE data does not provide affected releases, CPEs, package names, or fixed versions.
Exploitation context
The CVE is not listed as KEV in the provided bundle. A public GitHub issue and PoC reference are cited, but the sources do not support claims of active exploitation. The attack model requires local processing of a crafted file.
Researcher notes
Evidence is incomplete: NVD-style affected product fields are n/a, and no fixed version is named. Analysis should stay tied to SWFTools commit 772e55a2 and the xpdf/GfxState.cc overflow until vendor or maintainer data clarifies affected releases.
Mitigation direction
- Identify systems, containers, and jobs using SWFTools.
- Check upstream SWFTools guidance and issue status for fixes.
- Avoid processing untrusted PDFs with SWFTools where possible.
- Run conversion workloads with sandboxing and least privilege.
- Apply resource limits to reduce availability impact.
Validation and detection
- Inventory deployed SWFTools binaries and dependent workflows.
- Confirm whether any workflow accepts user-supplied PDFs.
- Review job failures or crashes in document conversion logs.
- Verify sandboxing, privilege boundaries, and resource controls.
- Track upstream issue 182 for remediation evidence.
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.
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 lookupCVE-2022-35098 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
- Medium
- CVSS
- 5.5 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
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 vector scores
1 official scoreWe 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.
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H1.83.6Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
5.5MediumVector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://github.com/matthiaskramm/swftools/issues/182CVE reference · x_refsource_MISC
- https://github.com/Cvjark/Poc/blob/main/swftools/pdf2swf/CVE-2022-35098.mdCVE 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.
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.