CVE-2023-38035: Ivanti Sentry Authentication Bypass Vulnerability

Is it exploited?

Yes. CISA added it to the Known Exploited Vulnerabilities catalog on 22 Aug 2023, 1 day after the CVE record was published.

How likely is exploitation in the next 30 days?

100%

EPSS score, percentile 100 of all scored records

How severe?

9.8 Critical

CVSS v3.1 base score, from CISA's enrichment of the record

What should I do?

CISA deadline 12 Sep 2023. Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

The CVE record links no vendor advisory, patch or mitigation.

Which versions are affected?

Affected

• from 9.18.0 and below to before 9.18.0 and below

Versions by product

Source: CISA Known Exploited Vulnerabilities (KEV) catalog, 2026.10.28, as of 28 Oct 2026; FIRST Exploit Prediction Scoring System (EPSS), v2026.06.15, as of 28 Oct 2026; CVE List V5 (CVE Program), cve_2026-10-28_0000Z, as of 28 Oct 2026. About the data.

What to do

CISA due date for this action: 12 September 2023.

Advisories and patches

The CVE record links no vendor advisory, patch or mitigation.

Linked from CISA's catalog entry

• https://forums.ivanti.com/s/article/CVE-2023-38035-API-Authentication-Bypass-on-Sentry-Administrator-Interface?language=en_US
• https://nvd.nist.gov/vuln/detail/CVE-2023-38035

Affected products and versions

As listed in the CVE record.

Versions not listed are: unaffected.

Source: CVE List V5 (CVE Program), cve_2026-10-28_0000Z, as of 28 Oct 2026. About the data.

About this vulnerability

Ivanti Sentry, formerly known as MobileIron Sentry, contains an authentication bypass vulnerability that may allow an attacker to bypass authentication controls on the administrative interface due to an insufficiently restrictive Apache HTTPD configuration.

Summary: CISA's KEV catalog, as of 28 Oct 2026.

• CISA added CVE-2023-38035 to its Known Exploited Vulnerabilities (KEV) catalog on 22 Aug 2023.
• CISA marks it as known to be used in ransomware campaigns.
• The due date CISA sets for the required action is 12 Sep 2023.
• The CVE record was published on 21 Aug 2023, 1 day before it was added to KEV.
• The CVE record carries a CVSS v3.1 base score of 9.8 (Critical), taken from CISA's enrichment of the record.
• FIRST's EPSS model puts the probability of exploitation in the next 30 days at 100% (percentile 100), as of 28 Oct 2026.
• CISA's SSVC assessment in the CVE record: exploitation active, automatable yes, technical impact total.

Source: CISA Known Exploited Vulnerabilities (KEV) catalog, 2026.10.28, as of 28 Oct 2026; CVE List V5 (CVE Program), cve_2026-10-28_0000Z, as of 28 Oct 2026; FIRST Exploit Prediction Scoring System (EPSS), v2026.06.15, as of 28 Oct 2026. About the data.

Description

A security vulnerability in MICS Admin Portal in Ivanti MobileIron Sentry versions 9.18.0 and below, which may allow an attacker to bypass authentication controls on the administrative interface due to an insufficiently restrictive Apache HTTPD configuration.

Source: CVE List V5 (CVE Program), cve_2026-10-28_0000Z, as of 28 Oct 2026. About the data.

Weakness

• CWE-863: Incorrect Authorization

CWE and CAPEC are maintained by MITRE; the entries are those named in the CVE record and the KEV entry.

Timeline

References

• forums.ivanti.com
• packetstormsecurity.com

More exploited Ivanti vulnerabilities

• CVE-2026-104935: Ivanti Connect Secure Authentication Bypass by Spoofing Vulnerability (added 13 Oct 2026)
• CVE-2026-10520: Ivanti Sentry OS Command Injection Vulnerability (added 11 Jun 2026)
• CVE-2026-6973: Ivanti Endpoint Manager Mobile (EPMM) Improper Input Validation Vulnerability (added 7 May 2026)
• CVE-2026-1340: Ivanti Endpoint Manager Mobile (EPMM) Code Injection Vulnerability (added 8 Apr 2026)
• CVE-2026-1603: Ivanti Endpoint Manager (EPM) Authentication Bypass Vulnerability (added 9 Mar 2026)
• CVE-2026-1281: Ivanti Endpoint Manager Mobile (EPMM) Code Injection Vulnerability (added 29 Jan 2026)