CVE-2025-8855Network attack vector

Authenticated 2FA expiry bypass

Published Nov 14, 2025 · Updated Nov 14, 2025

Authentication bypass in Optimus Yazılım Aracı Kurum Otomasyonu before 1.1.71 allows remote authenticated users to bypass 2FA expiry. The CNA maps the flaw to user-controlled authorization keys, weak password recovery, and trust in assumed-immutable client data, but does not identify the affected endpoint or validation operation. A low-privileged account and network access are required; exploitation exposes confidential brokerage data and permits unauthorized data changes, without reported service interruption.

CVSS severity8.1
High
EPSS probability0.37%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Authentication bypass in Optimus Yazılım Aracı Kurum Otomasyonu before 1.1.71 allows remote authenticated users to bypass 2FA expiry. The CNA maps the flaw to user-controlled authorization keys, weak password recovery, and trust in assumed-immutable client data, but does not identify the affected endpoint or validation operation. A low-privileged account and network access are required; exploitation exposes confidential brokerage data and permits unauthorized data changes, without reported service interruption.

The record

CVE
CVE-2025-8855
Published
Nov 14, 2025
Updated
Nov 14, 2025
Vendor
Optimus Yazılım
Product
Aracı Kurum Otomasyonu
Classifications
CWE-640, CWE-302, CWE-639, CAPEC-22, CAPEC-115, CAPEC-203
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Nov 14, 2025CVE publishedPublication date reported by the CVE source.
  2. Nov 14, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <1.1.71

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Optimus Yazılım · Aracı Kurum Otomasyonuversion=0 <1.1.71

Published CVSS scores

8.1TR-CERTCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-640Weak Password Recovery Mechanism for Forgotten Password
CWE-302Authentication Bypass by Assumed-Immutable Data
CWE-639Authorization Bypass Through User-Controlled Key
CAPEC-22Exploiting Trust in Client
CAPEC-115Authentication Bypass
CAPEC-203Manipulate Registry Information

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo