Cyber Resilience

CVE-2026-22616

Eaton Intelligent Power Protector ≤ 2.00

Published
16 April 2026
Modified
22 April 2026
Patch / advisory
View advisory
CVSS Score v3.1 6.5
Click a component to see what it means
Raw vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
EPSS Score 0.0032 25th percentile
Risk Priority 50 floored blend · peak EPSS

Summary

CVE-2026-22616 is a medium-severity Improper Restriction of Excessive Authentication Attempts (CWE-307) vulnerability in Eaton Intelligent Power Protector. Its CVSS base score is 6.5 (Medium).

Operationally, exploitation aligns with the MITRE ATT&CK technique Brute Force (T1110); ranked at the 25th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

The strongest mitigations our analysis identified map to AC-7 (Unsuccessful Logon Attempts) — see the control section below for these in your framework.

Deeper analysis AI-assisted summary

Synthesised by an AI model from the NVD description and linked references — a reading aid, not an authoritative source.

CVE-2026-22616 is a vulnerability in Eaton Intelligent Power Protector (IPP) software that enables repeated authentication attempts against the web interface login page due to insufficient rate-limiting controls. This issue, classified under CWE-307: Improper Restriction of Excessive Authentication Attempts, affects the IPP software's web interface and carries a CVSS v3.1 base score of 6.5 (AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N). The vulnerability was published on 2026-04-16.

Remote attackers with network access can exploit this vulnerability without authentication privileges, user interaction, or high complexity. By conducting brute-force attacks on the login page, they may guess valid credentials, achieving limited impacts on confidentiality and integrity, such as unauthorized access to certain data or minor modifications, with no effect on availability.

Eaton has fixed this security issue in the latest version of IPP, which is available on the Eaton download centre. Additional details on the vulnerability and mitigation are outlined in Eaton's security bulletin at https://www.eaton.com/content/dam/eaton/company/news-insights/cybersecurity/security-bulletins/etn-va-2025-1025.pdf.

OWASP Top 10 for Web (2025)

A07:2025 Authentication Failures

EU & UK References

Vulnerability Data

Eaton Intelligent Power Protector (IPP) software allows repeated authentication attempts against the web interface login page due to insufficient rate‑limiting controls. This security issue has been fixed in the latest version of Eaton IPP which is available on the Eaton…

more

download centre.

CWE(s)
CWE-307

Related Threats

MITRE ATT&CK Enterprise Techniques

T1110 Brute Force Credential Access
Adversaries may use brute force techniques to gain access to accounts when passwords are unknown or when password hashes are obtained.
attack.mitre.org →
T1110.001 Password Guessing Credential Access
Adversaries with no prior knowledge of legitimate credentials within the system or environment may guess passwords to attempt access to accounts.
attack.mitre.org →
T1110.003 Password Spraying Credential Access
Adversaries may use a single or small list of commonly used passwords against many different accounts to attempt to acquire valid account credentials.
attack.mitre.org →
T1110.004 Credential Stuffing Credential Access
Adversaries may use credentials obtained from breach dumps of unrelated accounts to gain access to target accounts through credential overlap.
attack.mitre.org →
T1078 Valid Accounts Stealth
Adversaries may obtain and abuse credentials of existing accounts as a means of gaining Initial Access, Persistence, Privilege Escalation, or Defense Evasion.
attack.mitre.org →
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2026-22617Same product: Eaton Intelligent Power Protector
CVE-2026-22619Same product: Eaton Intelligent Power Protector
CVE-2026-22615Same product: Eaton Intelligent Power Protector
CVE-2026-22618Same product: Eaton Intelligent Power Protector
CVE-2026-25113Shared CWE-307
CVE-2026-35597Shared CWE-307
CVE-2025-1496Shared CWE-307
CVE-2025-12896Shared CWE-307
CVE-2026-71213Shared CWE-307
CVE-2023-1539Shared CWE-307

Affected Assets

eaton
intelligent power protector
≤ 2.00

Mitigating Controls

Control response

Prevent
Stop it (NIST 800-53)

—

Detect
Catch it (NIST detect / respond)

—

Harden
Shrink the surface (DISA STIG)
  • 2 hardening rules · 1 OS baseline
Validate
Prove the fix (OWASP ASVS)

—

Mitigating Controls (NIST 800-53 r5) AI

AC-7 Unsuccessful Logon Attempts good match

AC-7 directly enforces limits on consecutive failed logons, structurally blocking brute-force exploitation of the weakness.

Mitigating Controls (NIST CSF 2.0) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.

PR.AA-03 mostly match
prevents

Authentication enforcement directly includes lockout, throttling, and MFA policies that prevent brute-force attempts.

DE.CM-03 partial match
prevents

Behavioral monitoring of authentication activity can detect excessive failed attempts after they occur.

PR.PS-04 partial match
prevents

Generating auth logs enables later detection or forensics but does not itself restrict attempts.

Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.

A.8.5 Secure authentication partial match
prevents

CAPTCHA, account lock-out after repeated failures, and alerts on excessive attempts directly stop automated brute-force guessing of credentials.

Hardening callouts derived

Configuration rules from DISA STIG baselines that bear on weaknesses of the type cited by this CVE. Each rule is shown with the relationship its mapping actually records, against the CWE it was authored against. Derived via CVE→CWE over `controls_xwalks` (authoritative rows only; rows rated `none` are excluded).

RHEL 7 (2 rules)
  • V-204427 The Red Hat Enterprise Linux operating system must be configured to lock accounts for a minimum of 15 minutes after three unsuccessful logon attempts within a 15-minute timeframe. prevents CWE-307
  • V-204428 The Red Hat Enterprise Linux operating system must lock the associated account after three unsuccessful root logon attempts are made within a 15-minute period. prevents CWE-307

References