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CVE-2026-90634

Apache OpenOffice: Out-of-bounds write when importing encrypted PDF files

CVSS score

7.3

EPSS probability

—

Risk score

0.7

Published

3 h ago

OverviewPublic Exploits (0)NewsroomVulnerability Timeline
Patch status has not yet been verified

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Vulnerability description

DayBreach AI Explanation

Verified against sources

CVE-2026-90634: Apache OpenOffice Out-of-Bounds Write Vulnerability

Sources read

1

Source agreement

Tam uyum

Evidence confidence

%55

Short explanation

Apache OpenOffice through version 4.1.16 contains an out-of-bounds memory write vulnerability due to uncontrolled memory access during the import of encrypted PDF files [S0, S1]. A crafted PDF can cause a program crash or memory corruption [S0, S1].

Why does it matter?

This vulnerability poses a risk to system integrity because malicious encrypted PDF files can trigger program crashes or memory corruption [S0, S1].

What should be done?

  • Upgrading to version 4.1.17 is recommended [S0, S1]
  • Following vendor advisories
  • Avoiding the import of untrusted PDF files
Chain of evidence and sources2 verified claims

Apache OpenOffice 4.1.16 ve önceki sürümler, şifrelenmiş PDF içe aktarımı sırasında sınır dışı bellek yazma zafiyetinden etkilenmektedir.

S0 · daybreach-canonicalS1 · cvelist

Zafiyet, özel olarak hazırlanmış PDF dosyaları aracılığıyla bellek bozulmasına veya program çökmesine sebep olabilir.

S0 · daybreach-canonicalS1 · cvelist
Show the technical text from the sources

An uncontrolled memory access in the PDF import code of Apache OpenOffice versions through 4.1.16 allows a crafted PDF to cause an out-of-bounds memory write, causing program crash or memory corruption. Users are recommended to upgrade to version 4.1.17, which fixes this issue.

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

CWE: CWE-787

This explanation was compiled automatically from the source records. Scores, active exploitation, patch and exploit status come straight from the sources.

IMPACT: Affected Products and Software

Affected Products

The following products are affected by CVE-2026-90634 vulnerability. Where our threat engine knows the exact affected versions, they are listed below.

IDVENDORPRODUCTACTION
1Apache Software FoundationApache OpenOffice View
Total affected vendors: 1|Products: 1

RED HAT CSAF/VEX: Product Impact Check

Red Hat has not yet published a CSAF/VEX impact record for this CVE. This does not mean “not affected”.

SCORING: CVSS from Multiple Sources

CVSS Scores

The Common Vulnerability Scoring System is a standardised framework for assessing the severity of vulnerabilities in software and systems. We collect and display CVSS scores from several sources for each CVE.

SCOREVERSIONSEVERITYVECTORSOURCE
7.3CVSS V3_1HIGHCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:LCVE ADP

Patch and Remediation Guide

Solution & Remediation Advisory

Patch status unknown

İncelenen resmî kaynaklarda yama durumu doğrulanamadı. Bu sonuç “yama yok” anlamına gelmez.

Confirm the affected product and version against the source evidence above.
Restrict access to internet-facing services and apply network segmentation.
Until a patch is confirmed, follow the vendor advisory; do not read an unknown status as “no patch”.
Monitor server logs and network endpoints for signs of anomalous execution.

Public exploit and active exploitation status

Verified exploit intelligence

No verified public PoC, exploit repository or Metasploit module has been found for this CVE yet.

Weakness Classification and Attack Patterns (CWE & CAPEC)

CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorises the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-90634 is associated with the following CWEs:

CWE-787: Out-of-bounds Write

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2026-90634 weaknesses.

CAPEC-66: SQL InjectionCAPEC-126: Path TraversalCAPEC-28: OS Command Injection

Attack Vector and Accessibility

ExposureYerel erişim
PermissionsGerekmiyor
UserGerekiyor

Official Sources and Advisories

https://lists.apache.org/thread.html/1c0lropx46w8ozwk29p5yw1xlq4wnbllvendor-advisoryhttp://www.openwall.com/lists/oss-security/2026/11/03/32nvd

CVSS Vector Radar Chart

7.3 / 10
Attack VectorLocalComplexityLowPrivilegesNoneUser Interact.RequiredConfidentialityLowIntegrityHighAvailabilityLow

Vulnerability Scoring Details

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:L
Attack VectorLocal
Attack ComplexityLow
Privileges RequiredNone required
User Interaction—
Confidentiality (Gizlilik)Low
Integrity (Bütünlük)High
Availability (Erişilebilirlik)Low

Yama durumu bilinmiyor

İncelenen resmî kaynaklarda yama durumu doğrulanamadı. Bu sonuç “yama yok” anlamına gelmez.

Follow the vendor

AS
Apache Software Foundation logo
Apache Software Foundation

Weakness Type (CWE & CAPEC)

CWE-787

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CVE-2026-90634 · Apache OpenOffice: Out-of-bounds write when…