CVE-2026-60407.3HighCWE-416

CVE-2026-6040: Heap use-after-free in ODF number-format blank-width parsing

The Document Foundation · LibreOffice

Vendor fix available · Affected: The Document Foundation LibreOffice · Exploitation: unlikely (under 1%)

Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.

0.2%probability of exploitation in the next 30 days

5th percentile

050100

Higher than 5% of scored CVEs

7.3HighCVSS 3.1

LowMediumHighCrit.

DescriptionCVE.org

A heap use-after-free existed when importing the blank-width characters of an ODF number format. A position value read from the document was not checked against the length of the format-code string, so a malformed number format could be processed against memory outside that string. In fixed versions the position is bounds-checked before use.

Affected products1

From the CVE record. A product or version that is not listed is unknown, not unaffected.

The Document Foundation · LibreOfficefrom 25.8 before < 25.8.7; from 26.2 before < 26.2.3

On the Atlas

Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.

Open the Atlas

Exploitation: Unlikely (under 1%). EPSS under 1%, or no score yet.
CISA KEV: Not listed
Public check: No public nuclei template
Weakness: Use After Free · Memory Corruption
Vendor: The Document Foundation
Published: June 2026
Band: Unlikely (under 1%), June 2026

CoverageNo articles yet

No CyberSIXT article names CVE-2026-6040 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.