Predictive Vulnerability Intelligence.

Product

  • Product
  • Pricing
  • Documentation

Company

  • About
  • Partnerships
  • Blog
  • Support

Legal

  • Terms
  • Privacy
  • Data Licensing

© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2026-8357

32
FAUCET Score

LibreOffice Calc compiles cell formulas when opening a spreadsheet. A heap buffer overflow existed when compiling a very long formula made up of many opening tokens. The array that tracks nesting depth was allocated one element too small for that worst case, so such a formula wrote one element past its end. In fixed versions the array is sized to hold the largest possible nesting.

First published: Jun 15, 2026Last modified: Jun 15, 2026

Impacted Technologies

VendorProductVersion(s)CPE
The Document FoundationLibreOffice
>= 26.2, < < 26.2.4CNA affecteddefault unknown

CVSS Data

CVSS version used by this source: 4.0

5.4MEDIUM

CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Attack Vector
LOCAL
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
PASSIVE
VS Confidentiality
LOW
VS Integrity
LOW
VS Availability
HIGH
SS Confidentiality
NONE
SS Integrity
NONE
SS Availability
NONE
Exploit Maturity
PROOF_OF_CONCEPT
CvssVersion
4.0

Exploit Intelligence

EPSS Score
0.15%
Probability of exploitation in next 30 days
EPSS Percentile
4.7%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0015 is in the 3rd percentile among its peer group of 11,621 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (3)

ubuntupatch availablevia ubuntu_usn
Product: libreoffice (jammy)Fixed in: 1:7.3.7-0ubuntu0.22.04.12
ubuntupatch availablevia ubuntu_usn
Product: libreoffice (noble)Fixed in: 4:24.2.7-0ubuntu0.24.04.6
ubuntupatch availablevia ubuntu_usn
Product: libreoffice (resolute)Fixed in: 4:26.2.4.2-0ubuntu0.26.04.2

Vendor Advisories (1)

ubuntuUSN-8534-1

LibreOffice vulnerabilities

Jul 13, 2026

References

access.redhat.com / errata/RHSA-2026:35839
access.redhat.com / errata/RHSA-2026:36832
access.redhat.com / errata/RHSA-2026:43423
access.redhat.com / errata/RHSA-2026:43424
access.redhat.com / errata/RHSA-2026:43425
access.redhat.com / errata/RHSA-2026:43460
access.redhat.com / errata/RHSA-2026:43461
access.redhat.com / security/cve/CVE-2026-8357
bugzilla.redhat.com / show_bug.cgi
security.access.redhat.com / data/csaf/v2/vex/2026/cve-2026-8357.json
libreoffice.org / about-us/security/advisories/cve-2026-8357