CVE-2026-84276: IBM Guardium Data Protection 12.2.2 is affected by a denial-of-service vulnerability in the edge-controller

Routine

HIGH 7.5REMOTEDOWNGRADE

CVE-2026-84276 is a high-severity flaw (CVSS 7.5) affecting guardium data protection. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

IBM Guardium Data Protection 12.2.2 is affected by a denial-of-service vulnerability in the edge-controller. An unauthenticated remote attacker with network access to the edge-controller gRPC service can provide malformed task data that triggers an unchecked type assertion, causing the edge-controller process to terminate unexpectedly.

Why this priority

High severity
Remotely exploitable, no login, no user action

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.3% (top 74%)
CISA exploited list	No
Weakness	CWE-400
Published	2026-10-08
Last modified	2026-10-12

Publisher (CNA): IBM Corporation · Vendor: ibm

Last updated 2026-10-12 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-10-08 19:20 UTCPublished CVE record published
2026-10-12 23:17 UTCUpdated Record last modified

ibm guardium data protection DOWNGRADE

Affected: 12.2.2

Fixed in: no fixed release known

Safe to downgrade to: a release before 12.2.2

1. Check installed version

apt-cache policy guardium-data-protection || rpm -q guardium-data-protection || guardium-data-protection --version

2. No fixed release: DOWNGRADE to a release before 12.2.2 (Debian / Ubuntu)

apt-cache madison guardium-data-protection sudo apt install guardium-data-protection=<VERSION_BEFORE_12.2.2> sudo apt-mark hold guardium-data-protection

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list guardium-data-protection sudo dnf downgrade guardium-data-protection-<VERSION_BEFORE_12.2.2> sudo dnf versionlock add guardium-data-protection

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-84276?

guardium data protection: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2026-84276 being exploited?

CVE-2026-84276 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-84276 affect?

CVE-2026-84276 affects guardium data protection. Severity is high (CVSS 7.5). IBM Guardium Data Protection 12.2.2 is affected by a denial-of-service vulnerability in the edge-controller. An unauthenticated remote attacker with network access to the edge-controller gRPC service can provide malformed task data that tri

How urgent is CVE-2026-84276?

Priority 38/100. High severity; Remotely exploitable, no login, no user action

Related CVEs

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CVE-2026-84884 HIGH 7.5 DOWNGRADE IBM Guardium Data Protection 12.2 stores internal REST service-account passwords in a reversible plaintext-equ
CVE-2026-84882 HIGH 7.5 DOWNGRADE IBM Guardium Data Protection 12.2 is vulnerable to path traversal in the Universal Connector Oracle Wallet upl

References

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