Security readout for executives and security teams
Plain-English summary
This issue can make SWFTools crash when it handles a specially crafted PDF. The documented impact is denial of service, not data theft or privilege escalation. It matters most where PDF conversion runs automatically on files from customers, partners, email, or web uploads.
Executive priority
Prioritize if SWFTools processes external PDFs in production or customer-facing pipelines. For desktop-only or trusted-file use, handle through normal patch management. The main business risk is service disruption from converter crashes.
Technical view
CVE-2022-35095 describes a segmentation violation in SWFTools commit 772e55a2, in InfoOutputDev::type3D1 within pdf/InfoOutputDev.cc. CVSS 3.1 is 5.5: local attack vector, low complexity, no privileges, user interaction required, high availability impact, no confidentiality or integrity impact. CWE-787 is listed, but sources only substantiate a crash.
Likely exposure
Exposure is likely limited to environments using SWFTools, especially pdf2swf-style PDF conversion workflows, to process untrusted PDFs. The CVE record does not provide normalized affected product names, versions, CPEs, or a vendor fix status.
Exploitation context
A public PoC reference is listed, but CISA KEV is false and the provided sources do not show active exploitation. The CVSS vector requires user interaction and local processing of a malicious file. Treat internet-facing or automated upload conversion as higher operational risk.
Researcher notes
The source evidence is narrow: a CVE description, CVSS vector, CWE-787 classification, GitHub issue, and PoC reference. No authoritative affected-version matrix, patch advisory, or exploitation-in-the-wild evidence is provided in the bundle.
Mitigation direction
- Inventory SWFTools use, especially PDF conversion jobs accepting external files.
- Avoid processing untrusted PDFs with affected builds until vendor guidance is verified.
- Run conversion jobs with least privilege and process isolation.
- Apply vendor fixes if published; otherwise consider maintained alternatives.
- Monitor the CVE record and upstream GitHub issue for updates.
Validation and detection
- Check whether SWFTools or pdf2swf is installed in servers, desktops, and CI jobs.
- Identify workflows where external PDFs are passed into SWFTools automatically.
- Review logs for repeated converter crashes or abnormal job failures.
- Confirm whether builds trace to the referenced SWFTools commit or nearby versions.
- Verify compensating controls isolate converter crashes from core services.
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-2022-35095 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-2022-35095.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.