CVE-2026-66760
Low
No strong exploitation signal.
CVSS base
6.4
MEDIUM
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:H/A:L
EPSS — probability of exploitation (30 days)
0.1%
1.7th percentile
CISA KEV
Not listed
Weakness / dates
CWE-295
Published 2026-08-11 · modified 2026-09-08
CVSS breakdown
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:H/A:L
| Attack Vector | N | Network |
| Attack Complexity | H | High |
| Privileges Required | L | Low |
| User Interaction | N | None |
| Scope | U | Unchanged |
| Confidentiality | L | Low |
| Integrity | H | High |
| Availability | L | Low |
Timeline
- 2026-08-11 — Published (NVD)
- 2026-09-08 — Last modified (NVD)
Description
SAP Approuter does not correctly validate client certificates in certain callback flows. An attacker with low privileges, holding a certificate from the same trusted authority with matching subject values, could bypass the identity check. This complexity makes the attack difficult to execute. Successful exploitation could allow impersonation of a trusted internal component, resulting in a high impact on integrity and a low impact on confidentiality and availability.