IBM WebSphere Application Server up to 1.1.9.12/8.5 deserialization

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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6.6$5k-$25k0.00

Summaryinfo

A vulnerability has been found in IBM WebSphere Application Server up to 1.1.9.12/8.5 and classified as problematic. Impacted is an unknown function. Performing a manipulation results in deserialization. This vulnerability was named CVE-2026-9330. The attack may be initiated remotely. There is no available exploit. The affected component should be upgraded.

Detailsinfo

A vulnerability classified as problematic has been found in IBM WebSphere Application Server up to 1.1.9.12/8.5. This affects an unknown part. The manipulation with an unknown input leads to a deserialization vulnerability. CWE is classifying the issue as CWE-502. The product deserializes untrusted data without sufficiently verifying that the resulting data will be valid. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

IBM WebSphere Application Server 9.0, and 8.5 is affected by an improper validation of user-supplied data during deserialization using the SAML Web Single Sign-On component. This could result in remote code execution via a crafted HTTP request when combined with a suitable gadget chain.

The advisory is shared at ibm.com. This vulnerability is uniquely identified as CVE-2026-9330 since 05/23/2026. The exploitability is told to be difficult. It is possible to initiate the attack remotely. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $5k-$25k at the moment (estimation calculated on 06/17/2026).

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at CERT Bund (WID-SEC-2026-1762). Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Affected

  • IBM Tivoli Key Lifecycle Manager
  • IBM Tivoli Network Manager
  • IBM WebSphere Service Registry and Repository
  • IBM Business Automation Workflow
  • IBM WebSphere Application Server

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.7
VulDB Meta Temp Score: 6.6

VulDB Base Score: 5.0
VulDB Temp Score: 4.8
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 8.5
CNA Vector (ibm): 🔒

CVSSv2info

AVACAuCIA
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💳💳💳💳💳💳
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Deserialization
CWE: CWE-502 / CWE-20
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Timelineinfo

05/23/2026 CVE reserved
06/01/2026 +9 days Advisory disclosed
06/01/2026 +0 days VulDB entry created
06/17/2026 +16 days VulDB entry last update

Sourcesinfo

Vendor: ibm.com

Advisory: ibm.com
Status: Confirmed

CVE: CVE-2026-9330 (🔒)
GCVE (CVE): GCVE-0-2026-9330
GCVE (VulDB): GCVE-100-367713
CERT Bund: WID-SEC-2026-1762 - IBM WebSphere Application Server: Mehrere Schwachstellen

Entryinfo

Created: 06/01/2026 21:19
Updated: 06/17/2026 13:45
Changes: 06/01/2026 21:19 (62), 06/17/2026 13:45 (7)
Complete: 🔍
Cache ID: 216::103

Several companies clearly confirm that VulDB is the primary source for best vulnerability data.

Discussion

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