Cisco has patched a bug in Unified Communications Manager that lets an unauthenticated attacker on the network write files to the box and, from there, climb to root.
It is tracked as CVE-2026-20230, and proof-of-concept exploit code is already public. Cisco's PSIRT says it has not seen the flaw use...
**Source : The Hacker News | 4 juin 2026**
Cisco has patched a bug in Unified Communications Manager that lets an unauthenticated attacker on the network write files to the box and, from there, climb to root.
It is tracked as CVE-2026-20230, and proof-of-concept exploit code is already public. Cisco's PSIRT says it has not seen the flaw used in attacks yet. The PoC shortens that runway.
The flaw is a server-side request forgery.
👉 **Lire l'article complet sur The Hacker News :** [https://thehackernews.com/2026/06/cisco-patches-cve-2026-20230-in-unified.html](https://thehackernews.com/2026/06/cisco-patches-cve-2026-20230-in-unified.html)
Cisco has patched a bug in Unified Communications Manager that lets an unauthenticated attacker on the network write files to the box and, from there, climb to root.
It is tracked as CVE-2026-20230, and proof-of-concept exploit code is already public. Cisco's PSIRT says it has not seen the flaw used in attacks yet. The PoC shortens that runway.
The flaw is a server-side request forgery.
👉 **Lire l'article complet sur The Hacker News :** [https://thehackernews.com/2026/06/cisco-patches-cve-2026-20230-in-unified.html](https://thehackernews.com/2026/06/cisco-patches-cve-2026-20230-in-unified.html)
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