---
title: "CVE-2017-12637: SAP NetWeaver Directory Traversal Vulnerability"
url: https://erroneo.us/security/cve/CVE-2017-12637/
description: "CVE-2017-12637 (SAP NetWeaver): Exploited in the wild (CISA KEV). Directory traversal vulnerability in scheduler/ui/js/ffffffffbca41eb4/UIUtilJavaScriptJS…"
type: vulnerability-record
section: "Security Digest"
date_published: 2017-08-07
date_modified: 2025-10-21
publisher: erroneo.us
author: erroneo.us Security Desk
cve: "CVE-2017-12637"
kev: true
cvss: 7.5
epss: 0.95111
license: All rights reserved. Quote with attribution and a link.
---

# CVE-2017-12637: SAP NetWeaver Directory Traversal Vulnerability

**Signal:** Exploited: patch now if you run it. CISA has confirmed exploitation in the wild. (Computed from CISA KEV, EPSS and CVSS; not an editorial verdict.)

## Should you act?

- Yes, if you run SAP NetWeaver. CISA added this CVE to its Known Exploited Vulnerabilities catalog on 2025-03-19, which means there is reliable evidence of exploitation in the wild. US federal agencies must remediate by 2025-04-09 ; treat that as the outer limit, not the target.
- EPSS 95.1% , percentile 99.9: FIRST’s model estimates a 95.1% chance of exploitation activity in the next 30 days, higher than 99.9% of all scored CVEs (very high). EPSS is a probability, not a verdict.
- Remotely reachable with no login and no user interaction. If the vulnerable service is exposed to the internet, prioritize it.

## What it is

Directory traversal vulnerability in scheduler/ui/js/ffffffffbca41eb4/UIUtilJavaScriptJS in SAP NetWeaver Application Server Java 7.5 allows remote attackers to read arbitrary files via a .. (dot dot) in the query string, as exploited in the wild in August 2017, aka SAP Security Note 2486657.

## Affected products (CVE record)

- n/a n/a: see advisory

## Severity

- CISA-ADP CVSS 3.1: 7.5 `CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N`

## Exploitation

- CISA KEV: added 2025-03-19; federal due date 2025-04-09. Known ransomware use: Unknown.
- CISA required action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
- CISA SSVC assessment: exploitation active , automatable yes , technical impact partial .
- FIRST EPSS (model of 2026-10-21): 95.11% probability of exploitation activity in the next 30 days; percentile 99.9.

## Sources

- [Listed in CISA KEV notes (me.sap.com)](https://me.sap.com/notes/3476549)
- [CVE.org record CVE-2017-12637](https://www.cve.org/CVERecord?id=CVE-2017-12637)
- [NVD entry CVE-2017-12637](https://nvd.nist.gov/vuln/detail/CVE-2017-12637)
- [CISA Known Exploited Vulnerabilities catalog entry](https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2017-12637)
- [web.archive.org](https://web.archive.org/web/20170807202056/http://www.sh0w.top/index.php/archives/7/)

---
Source page: https://erroneo.us/security/cve/CVE-2017-12637/ · Security Digest: https://erroneo.us/security/ · More: https://erroneo.us/llms.txt