CVE-2026-82335 IBM CVE debrief

Who should care

Defenders responsible for IBM Guardium Data Protection deployments, particularly those using versions 12.0, 12.1, or 12.2, should assess exposure and potential impact. This includes operators, platform administrators, vulnerability management teams, and security teams. They should verify exposure, prioritize remediation, and implement compensating controls if necessary. Additionally, they should review system logs for potential exploitation attempts and

Why it matters

Defenders should care about CVE-2026-82335 because it is a high-severity vulnerability in IBM Guardium Data Protection that could lead to denial of service or arbitrary code execution. Exposure verification and remediation are crucial, especially for deployments using affected versions.

• Denial of service is a possible consequence of exploitation.
• Arbitrary code execution is a potential consequence, requiring verification.
• Remediation priority is high due to the high CVSS score.
• Exposure verification is necessary to determine if deployments are affected.

Technical summary

The vulnerability is a heap-based buffer overflow in the MongoDB protocol parser of IBM Guardium Data Protection. A remote attacker could send a specially crafted MongoDB SCRAM username containing an excessive length and cause memory corruption. The vulnerability has a high CVSS score of 8.1, indicating a high severity. The affected versions are 12.0, 12.1, and 12.2. There is no information on exploitation, but defenders should prioritize verifying exposure and assessing potential impact. The vendor advisory and patch information should be reviewed for guidance.

Defensive priority

Defenders should prioritize verifying exposure and assessing potential impact, as the vulnerability has a high CVSS score of 8.1 and could lead to denial of service or arbitrary code execution.

Recommended defensive actions

• Verify exposure by checking if IBM Guardium Data Protection versions 12.0, 12.1, or 12.2 are in use
• Assess potential impact and prioritize remediation
• Implement compensating controls, such as monitoring and exception tracking, if remediation is not immediately possible
• Review vendor advisory and patch information for guidance
• Conduct a thorough review of system logs for potential exploitation attempts
• Perform a comprehensive asset inventory to identify affected systems
• Establish a rollback change window for remediation

Evidence notes

The CVE record and source item provide details on the vulnerability, including its description, CVSS score, and affected versions. However, additional information on exploitation, impact, and remediation is limited.

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.