CVE-2022-22532Public exploitNetwork attack vector

Unauthenticated cache poisoning via freed MPI buffer

Published Feb 9, 2022 · Updated Aug 3, 2024

Use-after-free in the ICM of SAP NetWeaver Application Server Java allows remote attackers to poison its web cache through HTTP pipelining. When pipelined requests are split, connection cleanup marks the second request's MPI buffer unused without erasing it, allowing another connection to overwrite data that the ICM later processes. No authentication or intermediary proxy is required; crafted incomplete requests can corrupt cached responses, hijack sessions, or enable code execution.

CVSS severity8.1
High
EPSS probability2.37%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

Use-after-free in the ICM of SAP NetWeaver Application Server Java allows remote attackers to poison its web cache through HTTP pipelining. When pipelined requests are split, connection cleanup marks the second request's MPI buffer unused without erasing it, allowing another connection to overwrite data that the ICM later processes. No authentication or intermediary proxy is required; crafted incomplete requests can corrupt cached responses, hijack sessions, or enable code execution.

The record

CVE
CVE-2022-22532
Published
Feb 9, 2022
Updated
Aug 3, 2024
Vendor
SAP SE
Product
SAP NetWeaver Application Server Java
Classifications
CWE-444, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 9, 2022CVE 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

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

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

  1. Affected versionversion=7.22
  2. Affected versionversion=7.22EXT
  3. Affected versionversion=7.49
  4. Affected versionversion=7.53
  5. Affected versionversion=KERNEL 7.22
  6. Affected versionversion=KRNL64NUC 7.22
  7. Affected versionversion=KRNL64UC

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

SAP SE · SAP NetWeaver Application Server Javaversion=7.22; version=7.22EXT; version=7.49; version=7.53; version=KERNEL 7.22; version=KRNL64NUC 7.22; version=KRNL64UC

Published CVSS scores

9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
8.1Onapsis Research LabsCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
7.5NIST NVDAV:N/AC:L/Au:N/C:P/I:P/A:P

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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-444Inconsistent Interpretation of HTTP Requests ('HTTP Request/Response Smuggling')
T1190Exploit Public-Facing Application

Public exploit references

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

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo