CVE-2026-23687 json
XML Signature Wrapping in SAP NetWeaver AS ABAP and ABAP Platform
published 8mo ago modified 4mo ago also EUVD-2026-6389
- cvss
- 8.8
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.5%
- EPSS 0.5% chance of exploitation in 30 days, percentile 43%
- public exploits
- 0
- none known
Summary
SAP NetWeaver Application Server ABAP and ABAP Platform allows an authenticated attacker with normal privileges to obtain a valid signed message and send modified signed XML documents to the verifier. This may result in acceptance of tampered identity information, unauthorized access to sensitive user data and potential disruption of normal system usage.
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Check with FencerCISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- total
- Assessed
- 8mo ago
Exploit prediction
0.50% chance of exploitation in the next 30 days, higher than 43% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 8.8 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
Affected products
- SAP_SE SAP NetWeaver AS ABAP and ABAP Platform
Classification
- Weakness
-
- CWE-347 Improper Verification of Cryptographic Signature
References
-
url.sap
/sapsecuritypatchday
vendor-advisory
-
me.sap.com
/notes/3697567
permissions-required
- seclists.org /fulldisclosure/2026/Jun/1
Sources
- CVE List CVE-2026-23687
- NVD CVE-2026-23687
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