CVE-2026-27685Network attack vector

Host data compromise and service disruption via deserialization

Published Mar 10, 2026 · Updated Mar 10, 2026

Insecure deserialization in SAP NetWeaver Enterprise Portal EP-RUNTIME 7.50 allows remote authenticated users to compromise the host system. SAP identifies the Administration component but has not disclosed the deserialization locus, accepted object types, or missing validation boundary. Exploitation requires a privileged portal account and can affect host confidentiality, integrity, and availability without user interaction.

CVSS severity9.1
Critical
EPSS probability0.55%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Insecure deserialization in SAP NetWeaver Enterprise Portal EP-RUNTIME 7.50 allows remote authenticated users to compromise the host system. SAP identifies the Administration component but has not disclosed the deserialization locus, accepted object types, or missing validation boundary. Exploitation requires a privileged portal account and can affect host confidentiality, integrity, and availability without user interaction.

The record

CVE
CVE-2026-27685
Published
Mar 10, 2026
Updated
Mar 10, 2026
Vendor
cap-js
Product
SAP NetWeaver Enterprise Portal
Classifications
CWE-502
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Mar 10, 2026CVE publishedPublication date reported by the CVE source.
  2. Mar 10, 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=EP-RUNTIME 7.50

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

cap-js · SAP NetWeaver Enterprise Portalversion=EP-RUNTIME 7.50

Published CVSS scores

9.1SAPCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/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.

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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
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-502Deserialization of Untrusted Data

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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