CVE-2026-84058: IBM Guardium Data Protection 12.0, 12.1, and 12.2 is vulnerable to a buffer overrun in the TDS (Microsoft SQL

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HIGH 8.1REMOTEWATCHLISTUPGRADE

CVE-2026-84058 is a high-severity flaw (CVSS 8.1) 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 12.0, 12.1, and 12.2 is vulnerable to a buffer overrun in the TDS (Microsoft SQL Server) PRELOGIN packet decoder. A remote attacker who can send a specially crafted TDS PRELOGIN packet to a network monitored by an IBM Guardium Collector may cause a denial of service or potentially execute arbitrary code on the Collector appliance.

Why this priority

High severity
Remotely exploitable, no login, no user action
On your watchlist

A fixed release or distro patch exists.

Risk facts

CVSS score	8.1 (High)
Attack vector	Network (remote)
Attack complexity	High
Privileges needed	None
User interaction	None
EPSS exploit chance	0.4% (top 68%)
CISA exploited list	No
Weakness	CWE-119
Published	2026-10-08
Last modified	2026-10-14

Publisher (CNA): IBM Corporation · Vendor: ibm

Last updated 2026-10-14 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-10-08 22:17 UTCPublished CVE record published
2026-10-14 20:28 UTCUpdated Record last modified

ibm guardium data protection UPGRADE

Affected: >= 12.0 and <= 12.2

Fixed in: newer than 12.2

Safe to downgrade to: a release before 12.0

1. Check installed version

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

2. UPGRADE to newer than 12.2 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade guardium-data-protection

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade guardium-data-protection

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

3. If no update is available yet, DOWNGRADE to a release before 12.0 (Debian / Ubuntu)

apt-cache madison guardium-data-protection sudo apt install guardium-data-protection=<VERSION_BEFORE_12.0> sudo apt-mark hold guardium-data-protection

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list guardium-data-protection sudo dnf downgrade guardium-data-protection-<VERSION_BEFORE_12.0> 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-2026-84058?

guardium data protection: upgrade to newer than 12.2. Exact commands for each OS are on this page.

Is CVE-2026-84058 being exploited?

CVE-2026-84058 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-2026-84058 affect?

CVE-2026-84058 affects guardium data protection. Severity is high (CVSS 8.1). IBM Guardium Data Protection 12.0, 12.1, and 12.2 is vulnerable to a buffer overrun in the TDS (Microsoft SQL Server) PRELOGIN packet decoder. A remote attacker who can send a specially crafted TDS PRELOGIN packet to a network monitored by

How urgent is CVE-2026-84058?

Priority 46/100. High severity; Remotely exploitable, no login, no user action; On your watchlist

Software pages

Microsoft SQL Server vulnerabilities

Related CVEs

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References

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