CVE-2026-6040

HIGH

CVSS v3.1: 7.3 · EPSS: 0.0012 (2.0 percentile)

Use After FreeOut-of-bounds WriteVendor advisory ref

Source data as of:

At a glance

Severity
HIGH
CVSS
7.3 v3.1 · NVD
EPSS
0.0012 (2.0 percentile) · FIRST.org
CISA KEV
No
Type
Use After Free, Out-of-bounds Write · NVD CWE
Attack conditions (CVSS vector)
· Source: NVD Vector
Published
2026-06-15 · Modified: 2026-06-30

CVSS / EPSS / KEV

CVSS v3.1 7.3 / 10 HIGH Source: NVD
CVSS v4.0 5.4 / 10 MEDIUM Source: NVD
EPSS 0.0012 2.0 percentile Source: FIRST.org
CISA KEV No Source: CISA

Source — CVSS: NVD · EPSS: FIRST.org · KEV: CISA. Data & Sources

Description

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.

Record details

CVE ID
CVE-2026-6040
CVSS (v3.1)
7.3 (HIGH)
Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
Exploitability subscore
1.3
Impact subscore
5.9
EPSS
0.0012 (2.0 percentile) — 2026-06-30
CISA KEV
No
Weakness (CWE)
CWE-416, CWE-787, CWE-825
Affected configurations (CPE)
0
Published
2026-06-15
Modified
2026-06-30
Status
Deferred

References

Reference URLs as listed by NVD, grouped by a mechanical match on the link's host/pattern. Labels describe the link type only.