CVE-2026-34265Network attack vector

Data disclosure or server crash via DIAG parsing

Published Aug 11, 2026 · Updated Aug 11, 2026

Memory corruption in SAP NetWeaver Application Server ABAP allows remote attackers to disclose data or crash the server via DIAG traffic. The DIAG protocol parser mishandles crafted unauthenticated messages through undisclosed logical errors, corrupting memory during packet processing. SAP has not disclosed the exact parsing operation or bounds error; no credentials or user interaction are required to expose system information or crash the server.

CVSS severity9.8
Critical
EPSS probability0.57%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Memory corruption in SAP NetWeaver Application Server ABAP allows remote attackers to disclose data or crash the server via DIAG traffic. The DIAG protocol parser mishandles crafted unauthenticated messages through undisclosed logical errors, corrupting memory during packet processing. SAP has not disclosed the exact parsing operation or bounds error; no credentials or user interaction are required to expose system information or crash the server.

The record

CVE
CVE-2026-34265
Published
Aug 11, 2026
Updated
Aug 11, 2026
Vendor
SAP SE
Product
SAP NetWeaver and ABAP Platform
Classifications
CWE-787
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 11, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 11, 2026Record 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=7.22EXT
  2. Affected versionversion=7.22EXT2
  3. Affected versionversion=7.22EXT3
  4. Affected versionversion=7.53
  5. Affected versionversion=7.54
  6. Affected versionversion=7.77
  7. Affected versionversion=7.89
  8. Affected versionversion=7.93
  9. Affected versionversion=8.04
  10. Affected versionversion=9.16
  11. Affected versionversion=9.16 9.18
  12. Affected versionversion=9.18
  13. Affected versionversion=9.19
  14. Affected versionversion=KERNEL 7.22
  15. Affected versionversion=KRNL64NUC 7.22
  16. Affected versionversion=KRNL64UC 7.22

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

SAP SE · SAP NetWeaver and ABAP Platformversion=7.22EXT; version=7.22EXT2; version=7.22EXT3; version=7.53; version=7.54; version=7.77; version=7.89; version=7.93; version=8.04; version=9.16; version=9.16 9.18; version=9.18; version=9.19; version=KERNEL 7.22; version=KRNL64NUC 7.22; version=KRNL64UC 7.22

Published CVSS scores

9.8SAP SECVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/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 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 exploitUnconfirmed

Weakness, pattern, technique

CWE-787Out-of-bounds Write

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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