High severity · published Aug 25, 2026
CVE-2026-66766
Denial of Service (DoS) in SAP S/4HANA (Manage Supply Protection)
7.5
CVSS
0.5%
EPSS
No
On KEV
Description
SAP S/4HANA (Private Cloud) uses a third-party component that contains a Regular Expression Denial of Service (ReDoS) vulnerability. An unauthenticated attacker could supply specially crafted input that triggers excessive processing within the affected functionality. Successful exploitation could exhaust system resources and make the service unavailable, resulting in a high impact on availability. There is no impact on confidentiality and integrity.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.5% · higher than 43% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
SS
SAP S/4HANA (Manage Supply Protection) · SAP_SE
UIS4HOP1 800; 900 · source: vendor
Affected product
SS
SAP S/4HANA (Manage Supply Protection)
SAP_SE