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Ivanti EPMM unauthenticated arbitrary method invocation (CVSS 7.0, May 2026 update)

cve · CVE-2026-5788

Coverage
1
first 2026-05-08 → last 2026-09-30
Latest activity
2026-05-10
Ivanti's exploited EPMM flaw needs an admin login, so admin passwords never rotated after January's EPMM…
Peak priority
high
1 high
Targets
public-sector
sectors: public-sector · regions: europe
Sources cited
9
9 hosts

Action items (1)

Do-now tasks recorded on the entries about CVE-2026-5788, newest first. Check the date before acting on an older one.

  • If any on-premises EPMM appliance was hit in the January CVE-2026-1281/1340 wave and its local admin passwords were not reset, reset every EPMM admin credential now and review admin API activity since then, because the exploited CVE-2026-6973 needs only an admin login.
    2026-05-08CVE-2026-6973 +4

Defender insights

What each entry about CVE-2026-5788 tells a defender to do, newest first.

2026-05-08HIGHexploitedIvanti's exploited EPMM flaw needs an admin login, so admin passwords never rotated after January's EPMM zero-days are the real exposure

Exposure · detection

Story timeline

  1. 2026-05-08CVE-2026-6973: Ivanti EPMM admin-authenticated RCE exploited in limited attacks, fixed with four further EPMM flaws including unauthenticated Sentry certificate issuance (CVE-2026-5787)
    trending-vulnerabilitiesIvanti's exploited EPMM flaw needs an admin login, so admin passwords never rotated after January's EPMM zero-days are the real exposure
ATT&CK techniques (2 across 4 tactics)

2 techniques observed across 1 entry about this entity, derived from entry metadata and body evidence, never asserted without a published entry behind it · pinned to MITRE ATT&CK v20.0 · compare on the matrix · Navigator layer (JSON)

  • Initial AccessValid Accounts · Exploit Public-Facing Application
  • PersistenceValid Accounts
  • Privilege EscalationValid Accounts
  • StealthValid Accounts

Initial Access TA0001

T1078Valid Accounts×1

Adversaries may obtain and abuse credentials of existing accounts as a means of gaining Initial Access, Persistence, Privilege Escalation, or Defense Evasion. Compromised credentials may be used to bypass access controls placed on various resources on systems within the network and may even be used for persistent access to remote systems and externally available services, such as VPNs, Outlook Web Access, network devices, and remote desktop. Compromised credentials may also grant an adversary increased privilege to specific systems or access to restricted areas of the network. Adversaries may choose not to use malware or tools in conjunction with the legitimate access those credentials provide to make it harder to detect their presence.

Evidence: 2026-05-08/cve-2026-5787-cve-2026-6973-ivanti-epmm-pre-auth-certificate · ATT&CK page ↗

T1190Exploit Public-Facing Application×1

Adversaries may attempt to exploit a weakness in an Internet-facing host or system to initially access a network. The weakness in the system can be a software bug, a temporary glitch, or a misconfiguration.

Evidence: 2026-05-08/cve-2026-5787-cve-2026-6973-ivanti-epmm-pre-auth-certificate · ATT&CK page ↗

Persistence TA0003

T1078Valid Accounts×1

Adversaries may obtain and abuse credentials of existing accounts as a means of gaining Initial Access, Persistence, Privilege Escalation, or Defense Evasion. Compromised credentials may be used to bypass access controls placed on various resources on systems within the network and may even be used for persistent access to remote systems and externally available services, such as VPNs, Outlook Web Access, network devices, and remote desktop. Compromised credentials may also grant an adversary increased privilege to specific systems or access to restricted areas of the network. Adversaries may choose not to use malware or tools in conjunction with the legitimate access those credentials provide to make it harder to detect their presence.

Evidence: 2026-05-08/cve-2026-5787-cve-2026-6973-ivanti-epmm-pre-auth-certificate · ATT&CK page ↗

Privilege Escalation TA0004

T1078Valid Accounts×1

Adversaries may obtain and abuse credentials of existing accounts as a means of gaining Initial Access, Persistence, Privilege Escalation, or Defense Evasion. Compromised credentials may be used to bypass access controls placed on various resources on systems within the network and may even be used for persistent access to remote systems and externally available services, such as VPNs, Outlook Web Access, network devices, and remote desktop. Compromised credentials may also grant an adversary increased privilege to specific systems or access to restricted areas of the network. Adversaries may choose not to use malware or tools in conjunction with the legitimate access those credentials provide to make it harder to detect their presence.

Evidence: 2026-05-08/cve-2026-5787-cve-2026-6973-ivanti-epmm-pre-auth-certificate · ATT&CK page ↗

Stealth TA0005

T1078Valid Accounts×1

Adversaries may obtain and abuse credentials of existing accounts as a means of gaining Initial Access, Persistence, Privilege Escalation, or Defense Evasion. Compromised credentials may be used to bypass access controls placed on various resources on systems within the network and may even be used for persistent access to remote systems and externally available services, such as VPNs, Outlook Web Access, network devices, and remote desktop. Compromised credentials may also grant an adversary increased privilege to specific systems or access to restricted areas of the network. Adversaries may choose not to use malware or tools in conjunction with the legitimate access those credentials provide to make it harder to detect their presence.

Evidence: 2026-05-08/cve-2026-5787-cve-2026-6973-ivanti-epmm-pre-auth-certificate · ATT&CK page ↗

Entries about Ivanti EPMM unauthenticated arbitrary method invocation (CVSS 7.0, May 2026 update) (1)

2026-05-08 · view entry permalink →

HIGHCVE-2026-6973 +4exploitedupdatedNATOA1

CVE-2026-6973: Ivanti EPMM admin-authenticated RCE exploited in limited attacks, fixed with four further EPMM flaws including unauthenticated Sentry certificate issuance (CVE-2026-5787)

Ivanti's May 2026 update for on-premises Endpoint Manager Mobile (EPMM) fixes five vulnerabilities. Ivanti states: "At the time of disclosure, we are aware of very limited exploitation of CVE-2026-6973, which requires admin authentication for successful exploitation", and "We are not aware of any customers being exploited by the other vulnerabilities disclosed today"; Ivanti Neurons for MDM, Ivanti EPM and Ivanti Sentry are not affected (Ivanti, 2026-05-07). CVE-2026-6973 (CVSS 7.2) is improper input validation that lets "a remotely authenticated user with administrative access to achieve remote code execution", fixed in 12.6.1.1, 12.7.0.1 and 12.8.0.1 (The Hacker News, 2026-05-07), and CISA added it to its Known Exploited Vulnerabilities catalog the same day (CISA KEV catalog, 2026-05-07).

The admin-login precondition is less reassuring than it looks. CERT-FR recalls that its guidance for January's exploited EPMM flaws CVE-2026-1281 and CVE-2026-1340 was to reset every local EPMM account password, and warns that where this was not done, attackers can reuse administrator passwords obtained then to exploit CVE-2026-6973 (CERT-FR, 2026-05-07). Ivanti makes the same link, saying customers who rotated credentials after January face a significantly reduced risk (BleepingComputer, 2026-05-07).

The four companion flaws are not reported exploited: CVE-2026-5786 (CVSS 8.8) lets an authenticated attacker gain administrative access, CVE-2026-5787 (CVSS 8.9) lets an unauthenticated attacker impersonate registered Sentry hosts and obtain valid CA-signed client certificates, CVE-2026-5788 (CVSS 7.0) lets an unauthenticated attacker invoke arbitrary methods, and CVE-2026-7821 (CVSS 7.4) lets an unauthenticated attacker enroll a device from a restricted set, exposing information about the appliance (The Hacker News, 2026-05-07). Shadowserver counted over 850 exposed EPMM instances, 508 of them in Europe and 182 in North America (BleepingComputer, 2026-05-07). No one has attributed the exploitation; SecurityWeek notes only that Chinese actors are often believed to be behind Ivanti zero-days (SecurityWeek, 2026-05-08).

At the time of disclosure, we are aware of very limited exploitation of CVE-2026-6973, which requires admin authentication for successful exploitation.

We are not aware of any customers being exploited by the other vulnerabilities disclosed today.

Ivanti 2026-05-07
Updaterun 2026-05-09-migratedregionssectorssourcestagsbody

CERT-FR (CERT-FR, 2026-05-07), Germany's BSI (BSI, 2026-05-07) and NCSC-CH (NCSC-CH Cyber Security Hub, 2026-05-08) published advisories on the May 2026 EPMM update. CERT-FR highlights the reuse of administrator passwords stolen in January as the way attackers reach CVE-2026-6973 (CERT-FR, 2026-05-07), and BSI notes that the required admin credentials may have leaked in the January attacks via CVE-2026-1281 and CVE-2026-1340 (BSI, 2026-05-07).

Updaterun 2026-05-10-001cvesevidencesourcestagsbody

Shadowserver counted over 850 internet-exposed EPMM instances, 508 of them in Europe and 182 in North America (BleepingComputer, 2026-05-07). Ivanti has confirmed exploitation of CVE-2026-6973 against "a very limited number of customers" without naming them, and SecurityWeek notes that Chinese actors are often believed to be behind Ivanti zero-days, without attributing this wave (SecurityWeek, 2026-05-08). The same May update fixes CVE-2026-5786, CVE-2026-5787, CVE-2026-5788 and CVE-2026-7821, none reported exploited (Ivanti, 2026-05-07).

Correctionrun 2026-09-30T0639Z-audittitleheadlinesummaryevent_datetagstechniquesaffected_productscvessourcesevidencesourcing_noteclassificationactionsbody

The earlier text described an exploited pre-authentication chain from CVE-2026-5787 into CVE-2026-6973, marked all five CVEs exploited and KEV-listed, and named four European public bodies as victims of this wave. Ivanti reports very limited exploitation of CVE-2026-6973 alone, which requires admin authentication, and no exploitation of the other four (Ivanti, 2026-05-07); only CVE-2026-6973 is in KEV (CISA KEV catalog, 2026-05-07); and no cited source names victims of the May wave. The path CERT-FR describes is reuse of administrator passwords stolen in January (CERT-FR, 2026-05-07). CVE-2026-7821 affects only deployments that use and have configured Apple Device Enrollment (BleepingComputer, 2026-05-07).

vulnerability08 May 05:00Zmulti-sourceOpen finding →

Co-occurring entities

Derived: referenced by the same focused operational entries (weekly summaries and report roundups don't count); ×N counts the shared entries.

Where this entity is cited

  • Vulns1

Source distribution

  • bleepingcomputer.com1 (11%)
  • bsi.bund.de1 (11%)
  • cert.ssi.gouv.fr1 (11%)
  • cisa.gov1 (11%)
  • cyber.gc.ca1 (11%)
  • ivanti.com1 (11%)
  • security-hub.ncsc.admin.ch1 (11%)
  • securityweek.com1 (11%)
  • other1 (11%)