CVE-2026-8356General

LOWCVSS 5.4 · MEDIUM

Signal is active with 1 mentions in latest observed window

Immediate actions

Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

LibreOffice can import presentations in the legacy binary PPT format. A stack buffer overflow existed when importing a colour-replacement record. Two fixed-size colour tables were filled from the file, but the write position was not reset between the two passes over the record, so a file whose combined colour counts exceeded the table size wrote past the end of the tables on the stack. In fixed versions the unused second pass is no longer read into those tables.

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0.0/ 10 priority

Sources & remediation

Other references

https://www.libreoffice.org/about-us/security/advisories/cve-2026-8356

Weakness type (CWE)

CWE-121CWE-787

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

NONE

Threat summary

1 mentions across 1 observed day

What's happening

Technical details provided in 1 signal
General: 1 classified signal
1 total mentions across 1 day

Deep dive

Activity timeline1 mentions / 1d

Signal classification1 categories

General

1100.0%

Referenced assets2 URLs

By indicator

Full discourse1 post

Vulmon Vulnerability Feed@VulmonFeeds140d
General
CVE-2026-8356 Stack Buffer Overflow in LibreOffice PPT Color-Replacement Record ... https://vulmon.com/vulnerabilitydetails?qid=CVE-2026-8356 Customizable Vulnerability Alerts: https://alerts.vulmon.com/?utm_source=twitter&utm_medium=social&utm_campaign=2102281&utm_content=4
Post summary
The post references CVE-2026‑8356 as a stack buffer overflow in LibreOffice's PPT Color‑Replacement Record, linking only to general vulnerability details without providing any PoC, exploit, patch, or active exploitation information.
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