How severe is CVE-2025-64406?

CVE-2025-64406 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability low.

Is CVE-2025-64406 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (35th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-64406?

CVE-2025-64406 affects Apache Openoffice. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-64406?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2025-64406 have an EU (EUVD) identifier?

Yes. CVE-2025-64406 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-124971.

When was CVE-2025-64406 published?

CVE-2025-64406 was published on 2025-11-12 and last updated on 2026-06-17.

CVE-2025-64406

CVE-2025-64406 is a medium-severity vulnerability in Apache Openoffice with a CVSS 3.x base score of 4.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-787.

Key facts

Severity: Medium (CVSS 3.x base score 4.3)
EPSS exploit prediction: 0% (35th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-124971
Weakness: CWE-787
Affected product: Apache Openoffice
Published: 2025-11-12
Last modified: 2026-06-17

Description

An out-of-bounds Write vulnerability in Apache OpenOffice could allow an attacker to craft a document that would crash the program, or otherwise corrupt other memory areas. This issue affects Apache OpenOffice: through 4.1.15. Users are recommended to upgrade to version 4.1.16, which fixes the issue.

Frequently asked questions

What is CVE-2025-64406?: An out-of-bounds Write vulnerability in Apache OpenOffice could allow an attacker to craft a document that would crash the program, or otherwise corrupt other memory areas. This issue affects Apache OpenOffice: through 4.1.15. Users are recommended to upgrade to version 4.1.16, which fixes the issue.
How severe is CVE-2025-64406?: CVE-2025-64406 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability low.
Is CVE-2025-64406 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (35th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-64406?: CVE-2025-64406 affects Apache Openoffice. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-64406?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-64406 have an EU (EUVD) identifier?: Yes. CVE-2025-64406 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-124971.
When was CVE-2025-64406 published?: CVE-2025-64406 was published on 2025-11-12 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:apache:openoffice:*:*:*:*:*:*:*:*

More vulnerabilities in Apache Openoffice

CVE-2014-3524 — Critical (CVSS 9.3): Apache OpenOffice before 4.1.1 allows remote attackers to execute arbitrary commands and possibly have other…
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CVE-2010-3454 — Critical (CVSS 9.3): Multiple off-by-one errors in the WW8DopTypography::ReadFromMem function in oowriter in OpenOffice.org (OOo) 2.x and…
CVE-2010-3453 — Critical (CVSS 9.3): The WW8ListManager::WW8ListManager function in oowriter in OpenOffice.org (OOo) 2.x and 3.x before 3.3 does not…
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