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CVE Record

CVE-2022-35091: SWFTools commit 772e55a2 was discovered to contain a floating point exception (FPE) via DCTStream::readMCUR...

SWFTools commit 772e55a2 was discovered to contain a floating point exception (FPE) via DCTStream::readMCURow() at /xpdf/Stream.cc.ow()

MediumCVSS 5.5Not KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

CVE-2022-35091 is a crash issue in SWFTools when processing crafted PDF input. The reported impact is denial of service, not data theft or code execution. Business urgency is moderate when SWFTools or pdf2swf handles untrusted files in automated pipelines.

Executive priority

Treat as a targeted availability risk. Prioritize remediation for internet-facing or customer-facing document conversion paths; lower priority for isolated desktop use with trusted files only.

Technical view

The CVE describes a floating point exception in DCTStream::readMCURow() in xpdf/Stream.cc for SWFTools commit 772e55a2. CVSS 3.1 is 5.5: local attack vector, low complexity, no privileges, user interaction required, and high availability impact.

Likely exposure

Exposure is most likely where SWFTools, especially pdf2swf, processes PDFs supplied by users, customers, partners, or batch ingestion jobs. The CVE metadata does not provide precise affected versions or CPEs.

Exploitation context

The bundle does not show CISA KEV listing or active exploitation. Public references include a GitHub issue and a PoC repository page, indicating reproducibility information exists, but the sourced impact remains a crash.

Researcher notes

Evidence is limited on affected version ranges and fixes. The CVE record names a vulnerable commit and crash location, with CVSS availability-only impact. Do not infer code execution from the supplied sources.

Mitigation direction

  • Inventory SWFTools and pdf2swf usage across servers, CI jobs, and file-processing workflows.
  • Avoid processing untrusted PDFs with builds tied to commit 772e55a2 until assessed.
  • Check upstream SWFTools guidance for fixed commits or maintained replacement packages.
  • Run converters with resource limits and isolation around untrusted document processing.
  • Monitor job failures for floating point exceptions in DCTStream::readMCURow().

Validation and detection

  • Confirm whether deployed builds include SWFTools or pdf2swf from the vulnerable code lineage.
  • Review upload and conversion paths for user-controlled PDF input.
  • Check crash logs for FPE events referencing xpdf/Stream.cc or DCTStream::readMCURow().
  • Verify any upgraded or replaced converter still passes existing document-processing regression tests.
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.

cwe · low confidence lookup

CWE-697: 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.

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cve · low confidence lookup

CVE-2022-35091 mapping review

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Vulnerability profileCVE Program record
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

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.

1CVSS vectors
0Timeline events
0ADP providers
3Source links

CVSS vector scores

1 official score

We 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.

ScoreVersionSeverityVectorExploitImpactSource
5.5CVSS 3.1MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H1.83.6Primary CVE score

Vulnerability scoring details

Base CVSS 3.1 score

5.5Medium
CVSS 3.1 vector shape for CVE-2022-35091Attack VectorAttack ComplexityPrivileges RequiredUser InteractionScopeConfidentiality ImpactIntegrity ImpactAvailability Impact

Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Privileges Required
NoneLowHigh
User Interaction
NoneRequired
Scope
ChangedUnchanged
Confidentiality Impact
HighLowNone
Integrity Impact
HighLowNone
Availability Impact
HighLowNone

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
n/an/an/aListed
Weakness

CWE details

CWE-697

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

CWE-697 · source CWE mapping

Incorrect Comparison

Incorrect Comparison represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.

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