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Known Exploited Vulnerability
8.6
HIGH CVSS 3.1
CVE-2026-104935
Ivanti Connect Secure Authentication Bypass by Spoofing Vulnerability - [Actively Exploited]
Overview
Description

Authentication bypass by spoofing in ICS before version 25.1.3.0 allows a remote unauthenticated attacker to execute arbitrary commands. This does not impact ICS version 22.7R2.14 or prior.

Details
INFO

Published Date :

Oct. 13, 2026, 4:17 p.m.

Last Modified :

Oct. 13, 2026, 7:24 p.m.

Remotely Exploit :

Yes !

Source :

3c1d8aa1-5a33-4ea4-8992-aadd6440af75
CISA Notification
CISA KEV (Known Exploited Vulnerabilities)

For the benefit of the cybersecurity community and network defenders—and to help every organization better manage vulnerabilities and keep pace with threat activity—CISA maintains the authoritative source of vulnerabilities that have been exploited in the wild.

Description :

Ivanti Connect Secure contains an authentication bypass by spoofing vulnerability that allows a remote unauthenticated attacker to execute arbitrary commands.

Required Action :

Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.

Known Ransomware Campaign Use:

Unknown

Notes :

https:/forums.ivanti.com/s/article/Security-Advisory-Ivanti-Connect-Secure-CVE-2026-104935 ; https://nvd.nist.gov/vuln/detail/CVE-2026-104935

Impact
Affected Products

The following products are affected by CVE-2026-104935 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Ivanti connect_secure
: Total Affected Vendor : 1 | Products : 1
Scoring
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 134c704f-9b21-4f2e-91b3-4a467353bcc0
CVSS 3.1 HIGH 3c1d8aa1-5a33-4ea4-8992-aadd6440af75
CVSS 3.1 HIGH MITRE-CVE
Solution
Update ICS to version 25.1.3.0 or later to fix authentication bypass.
  • Update ICS to version 25.1.3.0 or later.
  • Apply vendor-provided patches for ICS.
  • Verify authentication mechanisms are functioning correctly.
References
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2026-104935.

URL Resource
https://hub.ivanti.com/s/article/Security-Advisory-Ivanti-Connect-Secure-CVE-2026-104935 Vendor Advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-104935 US Government Resource
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-104935 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2026-104935 weaknesses.

CAPEC-21: Exploitation of Trusted Identifiers Exploitation of Trusted Identifiers CAPEC-22: Exploiting Trust in Client Exploiting Trust in Client CAPEC-59: Session Credential Falsification through Prediction Session Credential Falsification through Prediction CAPEC-60: Reusing Session IDs (aka Session Replay) Reusing Session IDs (aka Session Replay) CAPEC-94: Adversary in the Middle (AiTM) Adversary in the Middle (AiTM) CAPEC-459: Creating a Rogue Certification Authority Certificate Creating a Rogue Certification Authority Certificate CAPEC-461: Web Services API Signature Forgery Leveraging Hash Function Extension Weakness Web Services API Signature Forgery Leveraging Hash Function Extension Weakness CAPEC-473: Signature Spoof Signature Spoof CAPEC-476: Signature Spoofing by Misrepresentation Signature Spoofing by Misrepresentation CAPEC-667: Bluetooth Impersonation AttackS (BIAS) Bluetooth Impersonation AttackS (BIAS)

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2026-104935 vulnerability anywhere in the article.

  • Dark Reading
BeyondTrust Remote Support Zero-Day Continues Trend of Exploited Edge Bugs

5 Min ReadSource: ZU_09 via Getty ImagesA week chock full of new high-severity and actively exploited edge vulnerabilities continues with a Chinese cyberattack built around a critical flaw in BeyondTr ... Read more

Published Date: Oct 16, 2026 (2 weeks, 3 days ago)
  • Dark Reading
EU Grocers Pay a Steep Price for Unpatched Fridge Firmware

6 Min ReadSource: cagkansayin via Getty ImagesHundreds of French grocers likely lost many millions of dollars this week from cyberattacks that manipulated their refrigeration systems.Overnight on Mond ... Read more

Published Date: Oct 15, 2026 (2 weeks, 5 days ago)
  • TheCyberThrone
CISA Adds Microsoft, Ivanti, Cisco and Palo Alto Networks Vulnerabilities to KEV Catalog

CISA has expanded its Known Exploited Vulnerabilities (KEV) catalog with four vulnerabilities affecting Microsoft Windows, Ivanti Connect Secure, Cisco Secure Email Gateway, and Palo Alto Networks PAN ... Read more

Published Date: Oct 15, 2026 (2 weeks, 5 days ago)
  • Dark Reading
Ivanti ICS Zero-Day Attacks Highlight Vendor Patching Hurdles

Rob Wright,Senior News Director,Dark ReadingOctober 14, 20265 Min ReadSource: Florencio Horcajo Alvarez via Getty ImagesEven when technology vendors discover vulnerabilities before threat actors do, t ... Read more

Published Date: Oct 14, 2026 (2 weeks, 5 days ago)
  • The Hacker News
CISA Urges Immediate Ivanti Connect Secure Updates as Honeypots Log 105 Exploit Attempts

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Tuesday urged organizations to take steps to immediately update their Ivanti Connect Secure (ICS) appliances and deployments to the ... Read more

Published Date: Oct 14, 2026 (2 weeks, 6 days ago)
  • security.nl
Ivanti vpn-servers volledig gehackt bij aanval, aanvallers zoeken BitLocker keys

Bij de recente aanvallen tegen Ivanti vpn-servers combineerden de aanvallers drie verschillende kwetsbaarheden om zo volledige controle over de systemen te krijgen. Vervolgens probeerden ze allerlei c ... Read more

Published Date: Oct 14, 2026 (2 weeks, 6 days ago)
  • The Hacker News
Attacker Chains Three Ivanti Connect Secure Zero-Days for Root Access, Only Two Patched So Far

An attacker chained three zero-day flaws in Ivanti Connect Secure, a VPN appliance, to run commands as root without logging in, security firm Volexity said on October 13. Ivanti has released fixes for ... Read more

Published Date: Oct 13, 2026 (2 weeks, 6 days ago)
  • security.nl
Ivanti waarschuwt voor misbruik van lek in Connect Secure vpn-servers

Ivanti waarschuwt klanten voor actief misbruik van een kwetsbaarheid in Ivanti Connect Secure vpn-servers. Via het beveiligingslek (CVE-2026-104935) kan een ongeauthenticeerde aanvaller willekeurige c ... Read more

Published Date: Oct 13, 2026 (2 weeks, 6 days ago)

Results are limited to the first 20 news articles due to potential performance issues.

The following table lists the changes that have been made to the CVE-2026-104935 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • Initial Analysis by [email protected]

    Oct. 13, 2026

    Action Type Old Value New Value
    Added CPE Configuration OR *cpe:2.3:a:ivanti:connect_secure:*:*:*:*:*:*:*:* versions from (including) 25.1.0.0 up to (excluding) 25.1.1.2 *cpe:2.3:a:ivanti:connect_secure:*:*:*:*:*:*:*:* versions from (including) 25.1.2.0 up to (excluding) 25.1.3.0 *cpe:2.3:a:ivanti:connect_secure:22.8:r2:*:*:*:*:*:* *cpe:2.3:a:ivanti:connect_secure:22.8:r2.1:*:*:*:*:*:* *cpe:2.3:a:ivanti:connect_secure:22.8:r2.2:*:*:*:*:*:* *cpe:2.3:a:ivanti:connect_secure:22.8:r2.3:*:*:*:*:*:* *cpe:2.3:a:ivanti:connect_secure:22.8:r2.4:*:*:*:*:*:*
    Added Reference Type CISA-ADP: https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-104935 Types: US Government Resource
    Added Reference Type ivanti: https://hub.ivanti.com/s/article/Security-Advisory-Ivanti-Connect-Secure-CVE-2026-104935 Types: Vendor Advisory
  • CVE CISA KEV Update by 9119a7d8-5eab-497f-8521-727c672e3725

    Oct. 13, 2026

    Action Type Old Value New Value
    Added Date Added 2026-10-13
    Added Due Date 2026-10-13
    Added Required Action 2026-10-13
    Added Vulnerability Name 2026-10-13
  • New CVE Received by 3c1d8aa1-5a33-4ea4-8992-aadd6440af75

    Oct. 13, 2026

    Action Type Old Value New Value
    Added Description Authentication bypass by spoofing in ICS before version 25.1.3.0 allows a remote unauthenticated attacker to execute arbitrary commands. This does not impact ICS version 22.7R2.14 or prior.
    Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L
    Added CWE CWE-290
    Added Affected New affected value received. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2026/104xxx/CVE-2026-104935.json">CVE-2026-104935</a>
    Added Reference https://hub.ivanti.com/s/article/Security-Advisory-Ivanti-Connect-Secure-CVE-2026-104935
  • CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0

    Oct. 13, 2026

    Action Type Old Value New Value
    Added Reference https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-104935
    Added SSVC {'id': 'CVE-2026-104935', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'active'}, {'automatable': 'yes'}, {'technicalImpact': 'total'}], 'version': '2.0.3', 'timestamp': '2026-10-13T15:42:16.582526Z'}
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CVSS
Vulnerability Scoring Details
Base CVSS Score: 8.6
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact