Description
SAP Change and Transport System Attach Tool (ctsattach) allows an authenticated attacker to supply a specially crafted archive file which, when processed by the application�s library, can trigger insecure deserialization and lead to remote code execution (RCE) on the system. Successful exploitation requires a victim to process the malicious archive, enabling the attacker to execute the RCE and extract sensitive information and gain control over the system and its processes. This vulnerability has a high impact on confidentiality and integrity of the data, with a low impact on the availability of the system.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| SAP_SE | SAP Change and Transport System Attach Tool (ctsattach) | CTS_UPLOAD_CLT 1 | — |
Advisories 2
- WID-SEC-2026-2308 SAP Patch Day Juli 2026 BSI CERT-Bund (WID) · Jul 28, 2026
- NCSC-2026-0230 Kwetsbaarheden verholpen in SAP-producten NCSC-NL (Netherlands) · Jul 17, 2026