CVE-2026-58233Network attack vector

Authenticated code execution via archive deserialization

Published Jul 14, 2026 · Updated Jul 14, 2026

Insecure deserialization in SAP ctsattach CTS_UPLOAD_CLT 1 allows remote authenticated users to execute code through a crafted archive. Its archive-processing library deserializes attacker-controlled content, triggering object reconstruction that reaches code execution. Exploitation requires a victim to process the supplied archive; successful execution permits sensitive-data extraction and control of system processes.

CVSS severity7.6
High
EPSS probability0.56%
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 ctsattach CTS_UPLOAD_CLT 1 allows remote authenticated users to execute code through a crafted archive. Its archive-processing library deserializes attacker-controlled content, triggering object reconstruction that reaches code execution. Exploitation requires a victim to process the supplied archive; successful execution permits sensitive-data extraction and control of system processes.

The record

CVE
CVE-2026-58233
Published
Jul 14, 2026
Updated
Jul 14, 2026
Vendor
cap-js
Product
Enhanced Change and Transport System (CTS+) Attach Tool (ctsattach)
Classifications
CWE-502, T1203, T1204.002
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 14, 2026CVE publishedPublication date reported by the CVE source.
  2. Jul 14, 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=CTS_UPLOAD_CLT 1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

cap-js · Enhanced Change and Transport System (CTS+) Attach Tool (ctsattach)version=CTS_UPLOAD_CLT 1

Published CVSS scores

7.6SAP SECVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:L

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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-502Deserialization of Untrusted Data
T1203Exploitation for Client Execution
T1204.002User Execution: Malicious File

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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