What is CVE-2026-66774?

CVE-2026-66774 is a low-severity vulnerability in SAP Approuter, classified under Improper Check for Unusual or Exceptional Conditions. CVSS score: 3.7/10. Published 2026-08-11.

How severe is CVE-2026-66774?

Low severity. CVSS v3 base score is 3.7 out of 10.

Vulnerability in SAP Approuter

CVE-2026-66774

SAP Approuter does not consistently handle certain error conditions. An attacker with low privileges could exploit this under a non-default configuration. Successful exploitation is highly complex, as it depends on conditions outside the attacker's control. This could result in a low impact on availability. There is no impact on confidentiality and integrity.

Published 2026-08-11 · last modified 2026-09-08.

CVSS v3 metric

CVSS v3 base score 3.7 (Low). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L.

EPSS exploit prediction

EPSS: 0.004 (26.3th percentile), scored 2026-09-26.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 26th percentile — 26.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.002 · newest: 0.004 · change: +0.001

Affected products

SAP Approuter
SAP Se Business Ai Platform (Approuter) — versions SAP Approuter node.js package < 23.0.0

Weakness classification (CWE)

CWE-754 — Improper Check for Unusual or Exceptional Conditions

References

me.sap.com/notes/3786038 (Permissions Required)
url.sap/sapsecuritypatchday (Vendor Advisory)

Frequently asked questions

What is CVE-2026-66774?: CVE-2026-66774 is a low-severity vulnerability in SAP Approuter, classified under Improper Check for Unusual or Exceptional Conditions. CVSS score: 3.7/10. Published 2026-08-11.
How severe is CVE-2026-66774?: Low severity. CVSS v3 base score is 3.7 out of 10.