Buffer overflow in SAP Se Extended Passport (Epp) Processing

CVE-2026-44756

A memory safety vulnerability exists in the Extended Passport Protocol (EPP) processing library. Under specific conditions, an unauthenticated attacker could exploit a crafted network request containing a malformed EPP header, potentially resulting in undefined behavior and abnormal program termination. Successful exploitation may have a high impact on the confidentiality, integrity, and availability of the application.

Vulnerability class: Buffer Overflow

Published · last modified .

CVSS v3 metric

CVSS v3 base score 10.0 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.014 (72.3th percentile), scored .

Low probability of exploitation in the next 30 days, but still tracked. 72nd percentile — 72.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS trend (30 days)EPSS over the last 30 days for CVE-2026-44756: rose from 0.004 to 0.014.

EPSS over last 30 days · oldest: 0.004 · newest: 0.014 · change: +0.010

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2026-44756?
CVE-2026-44756 is a critical-severity vulnerability in SAP Se Extended Passport (Epp) Processing, classified under Buffer Copy without Checking Size of Input (Classic Buffer Overflow). CVSS score: 10.0/10. Published 2026-09-08.
How severe is CVE-2026-44756?
Critical severity. CVSS v3 base score is 10.0 out of 10.