Security readout for executives and security teams
Plain-English summary
This CVE affects IBM WebSphere Application Server traditional 8.5 and 9.0. A remote attacker may be able to run code on the server by abusing serialized object handling. If exploited on a business-critical application server, impact could include data theft, service disruption, and full application compromise.
Executive priority
High priority for organizations using WebSphere traditional 8.5 or 9.0, especially in externally reachable or sensitive environments. The impact is severe, but supplied evidence does not confirm active exploitation.
Technical view
The flaw is a remote code execution issue in IBM WebSphere Application Server traditional 8.5 and 9.0. The description says an unauthenticated network attacker could execute arbitrary code using a specially crafted sequence of serialized objects. CVSS 3.1 is 8.1, with high attack complexity and high confidentiality, integrity, and availability impact.
Likely exposure
Exposure is likely limited to organizations running IBM WebSphere Application Server traditional 8.5 or 9.0. Risk is higher where affected servers are reachable from untrusted networks or host sensitive applications. The bundle does not identify other IBM products as affected.
Exploitation context
The provided sources do not show CISA KEV listing or cite active exploitation. The vulnerability is remotely reachable and does not require authentication or user interaction, but CVSS marks attack complexity as high. Treat exploitation status as unconfirmed from the supplied evidence.
Researcher notes
Source evidence is concise and does not include exploit details, affected configurations beyond versions 8.5 and 9.0, or specific fixed builds in the bundle. Validate directly against IBM advisory and X-Force entry before final remediation tracking.
Mitigation direction
- Check IBM advisory 6891111 for fixed levels and interim guidance.
- Prioritize remediation for internet-facing or business-critical WebSphere traditional servers.
- Restrict untrusted network access to affected WebSphere deployments where feasible.
- Confirm backup, monitoring, and incident response coverage for affected systems.
Validation and detection
- Inventory WebSphere Application Server traditional deployments and record versions 8.5 or 9.0.
- Compare installed fix packs or interim fixes against IBM advisory guidance.
- Identify whether affected servers are reachable from untrusted networks.
- Review logs for unusual failures or suspicious activity around application server components.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-94: Code execution behavior lookup
Code execution and unsafe deserialization weaknesses often justify reviewing execution behavior and process telemetry. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupExecution behavior lookup
The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2023-23477 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- High
- CVSS
- 8.1 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H2.25.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
8.1HighVector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://www.ibm.com/support/pages/node/6891111CVE reference · vendor-advisory
- https://exchange.xforce.ibmcloud.com/vulnerabilities/245513CVE reference · vdb-entry
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Improper Control of Generation of Code ('Code Injection')
Improper Control of Generation of Code ('Code Injection') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.