CVE-2021-27617Network attack vector

Authenticated service interruption via XML memory exhaustion

Published May 11, 2021 · Updated Aug 3, 2024

Missing XML validation in SAP Process Integration allows remote authenticated users to exhaust server memory and interrupt service. The Integration Builder Framework accepts locally sourced, attacker-crafted XML without sufficient validation and parses it until excessive memory is consumed. High-privilege access to the network-facing upload workflow is required, and the documented consequence is an availability-only service interruption.

CVSS severity4.9
Medium
EPSS probability0.85%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Missing XML validation in SAP Process Integration allows remote authenticated users to exhaust server memory and interrupt service. The Integration Builder Framework accepts locally sourced, attacker-crafted XML without sufficient validation and parses it until excessive memory is consumed. High-privilege access to the network-facing upload workflow is required, and the documented consequence is an availability-only service interruption.

The record

CVE
CVE-2021-27617
Published
May 11, 2021
Updated
Aug 3, 2024
Vendor
SAP SE
Product
SAP Process Integration (Integration Builder Framework)
Classifications
CWE-20, T1499.003
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. May 11, 2021CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 7.10
  2. Affected versionversion=< 7.11
  3. Affected versionversion=< 7.20
  4. Affected versionversion=< 7.30
  5. Affected versionversion=< 7.31
  6. Affected versionversion=< 7.40
  7. Affected versionversion=< 7.50

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

SAP SE · SAP Process Integration (Integration Builder Framework)version=< 7.10; version=< 7.11; version=< 7.20; version=< 7.30; version=< 7.31; version=< 7.40; version=< 7.50

Published CVSS scores

4.0NISTAV:N/AC:L/Au:S/C:N/I:N/A:P
4.9SAP SECVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H
4.9NISTCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-20Improper Input Validation
T1499.003Application Exhaustion Flood

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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