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CVE Record

CVE-2022-43295: XPDF v4.04 was discovered to contain a stack overflow via the function FileStream::copy() at xpdf/Stream.cc...

XPDF v4.04 was discovered to contain a stack overflow via the function FileStream::copy() at xpdf/Stream.cc:795.

MediumCVSS 5.5Not KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

Xpdf 4.04 has a reported stack overflow that can crash the application when a user interaction reaches the vulnerable code path. The documented impact is availability loss, not data theft or privilege escalation.

Executive priority

Treat as a moderate availability risk. Prioritize environments where PDF processing is business-critical or exposed to untrusted files, but do not treat it as confirmed internet-exploited ransomware-grade risk from the supplied evidence.

Technical view

CVE-2022-43295 is a CWE-121 stack-based buffer overflow in FileStream::copy() at xpdf/Stream.cc:795 in Xpdf 4.04. The CVSS 3.1 score is 5.5 with local attack vector, low complexity, no privileges, required user interaction, and high availability impact.

Likely exposure

Exposure is most likely where Xpdf 4.04 is installed directly or bundled into document viewing or PDF-processing workflows. The source bundle does not provide CPEs or a broader affected-version range.

Exploitation context

The CVSS vector indicates local access and user interaction are required. The bundle does not show active exploitation, and this CVE is not listed as KEV. Public details are sparse.

Researcher notes

The record identifies the vulnerable function and line but provides limited reproduction, affected-version, and remediation detail. Avoid expanding scope beyond Xpdf 4.04 unless vendor or CVE updates confirm it.

Mitigation direction

  • Inventory Xpdf installations and embedded uses of Xpdf libraries.
  • Check Xpdf vendor guidance for fixed versions or supported mitigations.
  • Limit handling of untrusted PDFs on systems using Xpdf 4.04.
  • Run document processing with least privilege and isolation where practical.

Validation and detection

  • Confirm whether Xpdf 4.04 is present on endpoints or servers.
  • Check software bills of materials for bundled Xpdf components.
  • Review PDF-processing workflows that invoke Xpdf locally.
  • Track vendor forum or CVE updates for patch confirmation.
Prepared
Confidence
medium
Sources
3

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-121: 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-2022-43295 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

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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
2Source 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-2022-43295Attack 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-121

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