VulnSocial

CVE-2026-25818Disclosure

LOWCVSS 9.1 · CRITICAL

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

HMS Networks Ewon Flexy with firmware before 15.0s4, Cosy+ with firmware 22.xx before 22.1s6, and Cosy+ with firmware 23.xx before 23.0s3 have weak entropy for authentication cookies, allowing an attacker with a stolen session cookie to find the user password by brute-forcing an encryption parameter.

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0.0/ 10 priority

Sources & remediation

Other references
Weakness type (CWE)
CWE-315

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

STABLE

Threat summary

  • 3 mentions across 2 observed days
  • Momentum state: stable

What's happening

  • Technical details provided in 3 signals
  • Disclosure: 3 classified signals
  • Peaked 1d ago at 2 mentions (2026-03-13); latest day: 1
  • 3 total mentions across 2 days

Deep dive

Activity timeline3 mentions / 2d
01122Mentions · 2026-03-13: 2Mentions · 2026-03-14: 1Technical Details · 2026-03-13: 2Technical Details · 2026-03-14: 103-1303-14
Signal classification1 categories
Disclosure
3100.0%
Referenced assets3 URLs
Classification over time
DateTotalLabels
2026-03-132
Disclosure2
2026-03-141
Disclosure1
Full discourse3 posts
  • The Hacker Wire@TheHackerWire
    Disclosure

    🔴 CVE-2026-25818 - Critical HMS Networks Ewon Flexy with firmware before 15.0s4, Cosy+ with firmware 22.xx before 22.1s6, and Cosy+ with firmware 23.xx before 23.0s3 have weak entropy for authentication cookies, all... https://www.thehackerwire.com/vulnerability/CVE-2026-25818/ https://t.co/DKir34QbZM

    Post summary

    The tweet discloses that specific HMS Networks firmware versions use weak entropy for authentication cookies, potentially exposing authentication weaknesses.

    0000048
    135 followersView on X
  • CVEFind.com@CveFindCom
    Disclosure

    [CVE-2026-25818: CRITICAL] HMS Networks Ewon Flexy & Cosy+ devices have weak entropy for cookies pre 15.0s4 & 22.xx before 22.1s6, and 23.xx before 23.0s3, enabling attackers to brute-force user passwords.#cve,CVE-2026-25818,#cybersecurity https://cvefind.com/CVE-2026-25818

    Post summary

    The post discloses that HMS Networks Ewon Flexy & Cosy+ devices running firmware pre‑15.0s4, 22.xx before 22.1s6, or 23.xx before 23.0s3 suffer from weak cookie entropy, making passwords susceptible to brute‑force attacks.

    0000037
    602 followersView on X
  • CVE@CVEnew
    Disclosure

    CVE-2026-25818 HMS Networks Ewon Flexy with firmware before 15.0s4, Cosy+ with firmware 22.xx before 22.1s6, and Cosy+ with firmware 23.xx before 23.0s3 have weak entropy for authen… https://www.cve.org/CVERecord?id=CVE-2026-25818

    Post summary

    The tweet announces CVE‑2026‑25818, detailing weak entropy in authentication for specific firmware versions of HMS Networks devices, without providing a PoC, exploit, or patch information.

    00000180
    56.7K followersView on X

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