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CVE.org (no NVD analysis yet)· CNA apache

CVE-2026-59265: Apache OpenOffice, Apache OpenOffice: Opening a malicious document can lead to system takeover

Noroxi assessment

Priority: Monitor (action score 35/100)

  • Public proof-of-concept code exists (GitHub); there is no record of exploitation in the wild.
  • Probability of exploitation in the next 30 days: 0.58% (FIRST EPSS).
  • Anyone who can reach it over the internet can trigger it. No account or password is required. A user must open a link or visit a page. No special conditions are required; it is repeatable.
  • Fixed version: Apache Software Foundation Apache OpenOffice 181421139242694b309751fb666406eddc203c50, 95923fd437e06edd38a4f0e139a27c755a6f3ba6.

Low priority for now. Upgrade to Apache Software Foundation Apache OpenOffice 181421139242694b309751fb666406eddc203c50, 95923fd437e06edd38a4f0e139a27c755a6f3ba6 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

A code execution issue in the Java integration in Apache OpenOffice v4.1.16 and earlier allows a crafted untrusted document to trigger executing arbitrary (even remote) code when opened by the user. This issue is expected to be fixed in version 4.1.17, which is in the release candidate phase. Until then, users can mitigate this issue by disabling Java runtime integration in the Preferences dialog. This prevents the attack. If this is not possible, or as an extra precaution, you can avoid opening open untrusted files entirely. Once 4.1.17 is released, upgrade to that version to fix the issue.

HighCVSS 8.8 · v3.1—Proof of concept Fix available
Published
Oct 2, 2026
Updated
Oct 8, 2026
EPSS
0.5% · 48th percentile

Report tools

JSON

Action score

35

Monitor

Low priority for now.

CVSS
35 / 40 · 8.8 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.5%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
total

Vulnrichment: CISA's decision-tree inputs.

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • Proof of concept exists, no weaponized module
  • A fix has been released

If any of these changes, we'll tell you in the daily email digest.

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When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

—

Versions reported by the vendor

Affected version ranges reported by the assigning authority (apache). Independent of NVD's CPE analysis and usually ahead of it.

  • Apache Software Foundation Apache OpenOffice

    • up to and including 4.1.16affected · semver
    • before 95923fd437e06edd38a4f0e139a27c755a6f3ba6affected · git
    • before 181421139242694b309751fb666406eddc203c50affected · git

Same product

apache software foundation: all records

Other highest-scoring records for the same primary product.

  • CVE-2026-59267Apache OpenOffice: Heap Buffer Overflow in DXF LWPOLYLINE import could cause memory corruption
    23Monitor
  • CVE-2026-59263Apache OpenOffice: Carefully crafted documents could display different data when opened with different programs, instead of being reported as corrupt.
    7Monitor
  • CVE-2026-90634Apache OpenOffice: Out-of-bounds write when importing encrypted PDF files
    0Monitor

Published before and after this one in the same product

  • Later →CVE-2026-59264Nov 4, 2026 · Apache OpenOffice: Uncontrolled search path element vulnerability in Windows installer
    0Monitor
  • Later →CVE-2026-59268Nov 4, 2026 · Apache OpenOffice: Heap out-of-bounds write in WW8 PLCF reader
    0Monitor
  • Later →CVE-2026-90624Nov 4, 2026 · Apache OpenOffice: PDF File Parsing Heap based Buffer-Overflow-Remote Code Execution Vulnerability
    0Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
Apache Software Foundation Apache OpenOffice181421139242694b309751fb666406eddc203c50Vendor (CNA)
Apache Software Foundation Apache OpenOffice95923fd437e06edd38a4f0e139a27c755a6f3ba6Vendor (CNA)

Exploit status

Proof of concept available

A public proof of concept or detection signature exists. Exploit knowledge is out there; don't delay patching.

Evidence

  • Proof-of-concept repository on GitHub ×1

Noroxi does not host or link to exploit code. Metasploit module names and Nuclei template ids are shown (names, not code); Exploit-DB entries and PoC repositories are given as counts only.

Public exploit evidence
SourceKindDate
Proof-of-concept repository on GitHubstars:02026-10-06

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

  1. Published
  2. Fix recordedsame day
  3. First PoC+3 d
  4. TodayNov 4, 2026+33 d
EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • No account or password is required.
  • A user must open a link or visit a page.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
high · data can be read
Integrity
high · data or configuration can be modified
Availability
high · the service can be disrupted
Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
Required
Scope
Unchanged
Confidentiality impact
High
Integrity impact
High
Availability impact
High

Weakness class (CWE)

CWE-426 · Untrusted Search Path

CVSS vector

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

nvd-secondary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

Change log

  1. Exploit maturitynone → poc
  2. CVSS— → 8.8
  3. Severity— → high
  4. SSVC exploitation— → none
  5. Exploit maturity— → none
  6. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Show all references (4 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records