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Exploited vulnerability · CISA KEV

Is CVE-2017-12637 exploited? Yes: in CISA KEV since 19 Mar 2025

Gociux · SAP NetWeaver · data: CISA KEV, CVE record, FIRST EPSS

Yes. CVE-2017-12637, SAP NetWeaver Directory Traversal Vulnerability, is being exploited in the wild. CISA added it to its Known Exploited Vulnerabilities catalog on 19 Mar 2025, 2781 days after it was published. It affects SAP NetWeaver. If you run it, CISA's required action is: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

exploitedYesCISA KEV · 19 Mar 2025
ransomwareNot knownno confirmed use
EPSStop 1%among the most likely CVEs to be exploited
severity7.5CVSS 3.1 · high
US federal due9 Apr 2025BOD 22-01 deadline

What it is

SAP NetWeaver Application Server (AS) Java contains a directory traversal vulnerability in scheduler/ui/js/ffffffffbca41eb4/UIUtilJavaScriptJS that allows a remote attacker to read arbitrary files via a .. (dot dot) in the query string.

VendorSAP (14 exploited CVEs in KEV)
ProductNetWeaver
VulnerabilitySAP NetWeaver Directory Traversal Vulnerability
WeaknessCWE-22
Published7 Aug 2017
Added to KEV19 Mar 2025
Reported by (CNA)mitre

What to do

  1. Check whether you run it. Look for NetWeaver in your asset inventory, including appliances and cloud images. Stack check lists every exploited SAP CVE at once.
  2. Apply the fix. Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
  3. If you can't patch today, take the affected service off the internet or restrict who can reach it, and check its logs for signs of compromise since 7 Aug 2017.
  4. Get told next time. Email alerts when CISA adds a CVE for SAP.

Other exploited CVEs in NetWeaver

References

Questions

Is CVE-2017-12637 being exploited?

Yes. CISA added CVE-2017-12637 to the Known Exploited Vulnerabilities catalog on 19 Mar 2025, which means there is reliable evidence of exploitation in the wild.

Is CVE-2017-12637 used in ransomware attacks?

CISA does not list known ransomware use for it. That can change, and exploitation alone is reason to fix it first.

How do I fix CVE-2017-12637?

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable. Check SAP's advisory for the fixed versions, and if you can't patch quickly, restrict access to the affected NetWeaver and watch it for signs of compromise.

Sources: CISA KEV (exploitation, ransomware use, required action, due date), the CVE record (publication date, CVSS, CNA), NVD and FIRST EPSS (live score). More: all KEV additions in March 2025 · SAP scorecard · act-now radar.

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