CVE-2025-5451

A stack-based buffer overflow in Ivanti Connect Secure before version 22.7R2.8 and Ivanti Policy Secure before version 22.7R1.5 allows a remote authenticated attacker with admin rights to trigger a denial of service.

Published: 2025-07-08 Last update: 2025-07-15 Assigner: 3c1d8aa1-5a33-4ea4-8992-aadd6440af75 Source: 3c1d8aa1-5a33-4ea4-8992-aadd6440af75
NVD Status：Analyzed，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2025-5451 is rated Moderate Risk (46.8/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 0.98%). Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2025-5451

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-05-04 0.65% 0.98% +0.33%
2 2026-03-24 0.77% 0.65% -0.12%
3 2026-03-13 — 0.77% —

Full EPSS history (11 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2025-5451

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
4.9 3.1 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:H)
They need powerful rights—admin, root, or similar—before this pays off.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 1.2 3.6 3c1d8aa1-5a33-4ea4-8992-aadd6440af75

Weakness enumeration for CVE-2025-5451

Affected software / configurations for CVE-2025-5451

Vendor Product Version Raw CPE
ivanti connect_secure < 22.7 cpe:2.3:a:ivanti:connect_secure:*:-:*:*:*:*:*:*
ivanti connect_secure 22.7 cpe:2.3:a:ivanti:connect_secure:22.7:-:*:*:*:*:*:*
ivanti connect_secure 22.7 cpe:2.3:a:ivanti:connect_secure:22.7:r1:*:*:*:*:*:*
ivanti connect_secure 22.7 cpe:2.3:a:ivanti:connect_secure:22.7:r1.1:*:*:*:*:*:*
ivanti connect_secure 22.7 cpe:2.3:a:ivanti:connect_secure:22.7:r1.2:*:*:*:*:*:*
ivanti connect_secure 22.7 cpe:2.3:a:ivanti:connect_secure:22.7:r1.3:*:*:*:*:*:*
ivanti connect_secure 22.7 cpe:2.3:a:ivanti:connect_secure:22.7:r1.4:*:*:*:*:*:*
ivanti connect_secure 22.7 cpe:2.3:a:ivanti:connect_secure:22.7:r1.5:*:*:*:*:*:*
ivanti connect_secure 22.7 cpe:2.3:a:ivanti:connect_secure:22.7:r2:*:*:*:*:*:*
ivanti connect_secure 22.7 cpe:2.3:a:ivanti:connect_secure:22.7:r2.1:*:*:*:*:*:*
ivanti connect_secure 22.7 cpe:2.3:a:ivanti:connect_secure:22.7:r2.2:*:*:*:*:*:*
ivanti connect_secure 22.7 cpe:2.3:a:ivanti:connect_secure:22.7:r2.3:*:*:*:*:*:*
ivanti connect_secure 22.7 cpe:2.3:a:ivanti:connect_secure:22.7:r2.4:*:*:*:*:*:*
ivanti connect_secure 22.7 cpe:2.3:a:ivanti:connect_secure:22.7:r2.5:*:*:*:*:*:*
ivanti connect_secure 22.7 cpe:2.3:a:ivanti:connect_secure:22.7:r2.6:*:*:*:*:*:*
ivanti connect_secure 22.7 cpe:2.3:a:ivanti:connect_secure:22.7:r2.7:*:*:*:*:*:*
ivanti policy_secure < 22.7 cpe:2.3:a:ivanti:policy_secure:*:*:*:*:*:*:*:*
ivanti policy_secure 22.7 cpe:2.3:a:ivanti:policy_secure:22.7:-:*:*:*:*:*:*
ivanti policy_secure 22.7 cpe:2.3:a:ivanti:policy_secure:22.7:r1:*:*:*:*:*:*
ivanti policy_secure 22.7 cpe:2.3:a:ivanti:policy_secure:22.7:r1.1:*:*:*:*:*:*
ivanti policy_secure 22.7 cpe:2.3:a:ivanti:policy_secure:22.7:r1.2:*:*:*:*:*:*
ivanti policy_secure 22.7 cpe:2.3:a:ivanti:policy_secure:22.7:r1.3:*:*:*:*:*:*
ivanti policy_secure 22.7 cpe:2.3:a:ivanti:policy_secure:22.7:r1.4:*:*:*:*:*:*

References for CVE-2025-5451

cvelogic Threat Intelligence