CVE-2026-27565Patch

LOWCVSS 9.8 · CRITICAL

Signal is active with 2 mentions in latest observed window

Immediate actions

  • Patch affected systems immediately

Recommended action window: Monitor and triage in normal cycle

NVD description

An unauthenticated remote attacker can upload a malicious IODD file that places and executes a shell script with root privileges. The shell script remains active even after a reboot.

0.5/ 10 priority

Sources & remediation

Weakness type (CWE)
CWE-78

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

AVAILABLE

Momentum

NONE

Threat summary

  • Patch or workaround signal is available
  • 2 mentions across 1 observed day

What's happening

  • Patch or workaround mentioned in 2 signals
  • Technical details provided in 2 signals
  • 2 total mentions across 1 day

Deep dive

Activity timeline2 mentions / 1d
01122Mentions · 2026-09-16: 2Patch / Workaround · 2026-09-16: 2Technical Details · 2026-09-16: 209-16
Signal classification1 categories
Patch
2100.0%
Referenced assets2 URLs
Full discourse2 posts
  • ThreatAft@ThreatAft
    Patch

    🚨 IODD/IO-LINK — CVSS 9.8 ×2 CVE-2026-27546: Auth bypass → unauthenticated admin login CVE-2026-27565: Root RCE via malicious IODD file → survives reboots Fixed: Firmware 1.7.4 PATCH NOW. → https://threataft.com/articles/iodd-iolink-cve-2026-27546-cve-2026-27565-industrial-rce #IODD #IOLink #CVE #RCE #OTSecurity #PatchNow

    Post summary

    The tweet discloses two critical IODD/IO‑LINK vulnerabilities (CVE‑2026‑27546 and CVE‑2026‑27565) with CVSS 9.8 scores, detailing an auth bypass and a root‑level RCE via malicious IODD files. It states that firmware version 1.7.4 addresses both issues and urges immediate patching.

    0000038
    43 followersView on X
  • Daily CyberSecurity@Daily_CyberSec
    Patch

    Patch critical industrial firmware vulnerabilities and authentication bypass flaws like CVE-2026-27565 in Pepperl+Fuchs, Phoenix Contact & Carlo Gavazzi. #IndustrialSecurity #FirmwareFlaws #Cybersecurity #CVE202627565 #InfoSec https://securityonline.info/industrial-firmware-vulnerabilities/

    Post summary

    The post urges patching of industrial firmware vulnerabilities, highlighting CVE-2026-27565 as an authentication bypass flaw. It includes a link to an article but does not mention exploit code or active exploitation.

    00000407
    13.0K followersView on X

Explore more