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vulnerability

CVE-2025-22457

9.0
Critical
KEV · Exploited in wildEPSS 100%Patch available

A stack-based buffer overflow in Ivanti Connect Secure before version 22.7R2.6, Ivanti Policy Secure before version 22.7R1.4, and Ivanti ZTA Gateways before version 22.8R2.2 allows a remote unauthenticated attacker to achieve remote code execution.

exploited
Yes, in CISA KEV since 4 Apr 2025fix by 11 Apr 2025 (CISA deadline for US federal agencies)known use in ransomware campaignspublic exploit code
fix
Patch available see the advisory in the references
likelihood
EPSS 100.0%
Published 3 Apr 2025Analysed here 2 Nov 2026CVSS scored by the publisher (CNA)

do firstApply mitigations as set forth in the CISA instructions linked below.

triage
server-sideruntimeWAF can block: partlyAV · networkCWE-121· Stack-Based Buffer OverflowCWE-787· Out-of-Bounds Write

Can a WAF block it? Partly. Cloudflare publishes WAF a rule written for this CVE. Such rules block the known exploit requests and buy time, but attackers can change the request to get past them, so they do not replace the patch.

Also consider: patch · enable the vendor rule in block mode

Based on WAF vendor rules published for this CVE. We check Cloudflare, AWS, Google Cloud Armor and Azure; for Akamai, Imperva, Fastly, F5, ask your vendor.

cvss vector
attack vectornetworkattack complexityhighprivileges requirednoneuser interactionnonescopechangedconfidentialityhighintegrityhighavailabilityhigh
CVSS 3.1 · CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
common questions

Is CVE-2025-22457 being exploited?

Yes. CVE-2025-22457 appears in CISA's Known Exploited Vulnerabilities catalog, which means exploitation in the wild has been confirmed and reported. Treat it as active rather than theoretical, and patch it ahead of higher-scoring vulnerabilities that carry no exploitation evidence.

How severe is CVE-2025-22457?

CVE-2025-22457 is rated Critical with a CVSS score of 9.0. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.

Is there a patch for CVE-2025-22457?

Yes. A fix has been recorded for CVE-2025-22457. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.

What does CVE-2025-22457 affect?

CVE-2025-22457 affects ivanti:connect_secure, ivanti:policy_secure, ivanti:zero_trust_access_gateway. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.

Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.

executive summary
technical analysis
affected
ivanti:connect_secureivanti:policy_secureivanti:zero_trust_access_gateway

public exploits

Public exploit code: 1 Metasploit module · 6 GitHub proofs of concept

Listed so you can judge urgency, not as a recommendation to run anything. GitHub “proofs of concept” are unvetted: some are fake or carry malware. Exploit-DB marks the entries its staff verified.

cisa ssvc

exploitation
active
automatable
no
technical impact
total

Assessed by CISA 3 Apr 2025 (SSVC 2.0.3).

timeline

  1. 3 Apr 2025CISA SSVC assessment: exploitation active
  2. 3 Apr 2025Published · 1 day later
  3. 4 Apr 2025Added to CISA KEV (exploited in the wild) · same day later
  4. 8 Apr 2025First public exploit or proof of concept · 4 days later
  5. 11 Apr 2025CISA remediation due date (US federal agencies) · 3 days later
  6. 4 Aug 2026CVE record last updated · 480 days (about 1 year) later
  7. 2 Nov 2026Analysed by vulneraibility.com · 91 days (about 3 months) later
how to fix
Remediation steps are tailored for users whose stack is affected. Add this technology to your stack to see the fix checklist.
references
2 references in the CVE record: 2 links
  • Linkforums.ivanti.com /s/article/April-Security-Advisory-Ivanti-Connect-Secure-Policy-Secure-ZTA-Gatew
  • Linkcisa.gov /known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-22457

sources

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