Signal is active with 2 mentions in latest observed window
Recommended action window: Monitor and triage in normal cycle
NVD description
Out-of-bounds write vulnerability in The Document Foundation LibreOffice via crafted OOXML documents with mismatched encryption salt parameters. This issue affects LibreOffice: from 26.2 before 26.2.3, from 25.8 before 25.8.7.
Priority
LOW
Exploitation
NONE
PoC
NONE
Patch
AVAILABLE
Momentum
STABLE
If you run products in this scope, you should treat this CVE as relevant to your environment.
| Date | Total | Labels |
|---|
| 2026-05-07 | 1 | Disclosure1 |
| 2026-05-15 | 1 | Patch1 |
| 2026-06-25 | 2 | Patch2 |
LibreOffice heap overflow (CVE-2026-4430) patched in Mageia. My script applies the fix. But you need more than patches – you need to understand malware. Read more -> http://tinyurl.com/46frznz9 https://t.co/2dHZTsE6Dw
Post summary
The tweet confirms that the LibreOffice heap overflow CVE-2026-4430 has been patched in Mageia, with an accompanying script for the fix, but does not mention active exploitation or a PoC.
🛡️ RLSA-2026:28922: Atualização de segurança do LibreOffice para Rocky Linux 8 corrige CVE-2026-4430 (out-of-bounds write em OOXML) e outras 4 vulnerabilidades. Saiba mais: -> http://tinyurl.com/4t2p5pec #RockyLinux https://t.co/ISEGmOxQOw
Post summary
The tweet announces a Rocky Linux 8 security update that patches CVE‑2026‑4430 (an out‑of‑bounds write in OOXML) along with four other vulnerabilities.
🛡️ RLSA-2026:28922: Atualização de segurança do LibreOffice para Rocky Linux 8 corrige CVE-2026-4430 (out-of-bounds write em OOXML) e outras 4 vulnerabilidades. Saiba mais: -> http://tinyurl.com/4t2p5pec #RockyLinux https://t.co/77mkjOnzRm
Post summary
The tweet announces a LibreOffice security update for Rocky Linux 8 that fixes CVE-2026-4430, an out‑of‑bounds write in OOXML, with no PoC or active exploitation reported.
CVE-2026-4430 Out-of-bounds write vulnerability in The Document Foundation LibreOffice via crafted OOXML documents with mismatched encryption salt parameters. This issue affects Lib… https://www.cve.org/CVERecord?id=CVE-2026-4430
Post summary
The post announces CVE-2026-4430, detailing an out‑of‑bounds write in LibreOffice caused by mismatched encryption salts, but offers no proof‑of‑concept, exploitation details, or remediation advice.
1 of 1 entries
| Part | Vendor | Product | Version | Target SW | Target HW |
|---|---|---|---|---|---|
| App | libreoffice | libreoffice | - | - | - |