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CVE-2025-33130: IBM DB2 Merge Backup for Linux, UNIX and Windows 12.1.0.0 could allow an authenticated user to cause the progr

33
Routine
MEDIUM 6.5WATCHLISTDOWNGRADEDOWNGRADEDOWNGRADE

CVE-2025-33130 is a medium-severity flaw (CVSS 6.5) affecting db2 merge backup, db2 merge backup, db2 merge backup. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

IBM DB2 Merge Backup for Linux, UNIX and Windows 12.1.0.0 could allow an authenticated user to cause the program to crash due to a buffer being overwritten when it is allocated on the stack.

Why this priority

  • On your watchlist

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

Risk facts

CVSS score6.5 (Medium)
Attack vectorNetwork (remote)
Attack complexityLow
Privileges neededLow
User interactionNone
EPSS exploit chance0.3% (top 80%)
CISA exploited listNo
WeaknessCWE-120
Published2026-02-17
Last modified2026-06-17
Publisher (CNA): IBM Corporation · Vendor: ibm

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Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

ibm db2 merge backup DOWNGRADE
Affected: 12.1.0.0
Fixed in: no fixed release known
Safe to downgrade to: a release before 12.1.0.0
1. Check installed version
apt-cache policy db2-merge-backup || rpm -q db2-merge-backup || db2-merge-backup --version
2. No fixed release: DOWNGRADE to a release before 12.1.0.0 (Debian / Ubuntu)
apt-cache madison db2-merge-backup sudo apt install db2-merge-backup=<VERSION_BEFORE_12.1.0.0> sudo apt-mark hold db2-merge-backup
2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)
dnf --showduplicates list db2-merge-backup sudo dnf downgrade db2-merge-backup-<VERSION_BEFORE_12.1.0.0> sudo dnf versionlock add db2-merge-backup
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.
ibm db2 merge backup DOWNGRADE
Affected: 12.1.0.0
Fixed in: no fixed release known
Safe to downgrade to: a release before 12.1.0.0
1. Check installed version
apt-cache policy db2-merge-backup || rpm -q db2-merge-backup || db2-merge-backup --version
2. No fixed release: DOWNGRADE to a release before 12.1.0.0 (Debian / Ubuntu)
apt-cache madison db2-merge-backup sudo apt install db2-merge-backup=<VERSION_BEFORE_12.1.0.0> sudo apt-mark hold db2-merge-backup
2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)
dnf --showduplicates list db2-merge-backup sudo dnf downgrade db2-merge-backup-<VERSION_BEFORE_12.1.0.0> sudo dnf versionlock add db2-merge-backup
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.
ibm db2 merge backup DOWNGRADE
Affected: 12.1.0.0
Fixed in: no fixed release known
Safe to downgrade to: a release before 12.1.0.0
1. Check installed version
apt-cache policy db2-merge-backup || rpm -q db2-merge-backup || db2-merge-backup --version
2. No fixed release: DOWNGRADE to a release before 12.1.0.0 (Debian / Ubuntu)
apt-cache madison db2-merge-backup sudo apt install db2-merge-backup=<VERSION_BEFORE_12.1.0.0> sudo apt-mark hold db2-merge-backup
2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)
dnf --showduplicates list db2-merge-backup sudo dnf downgrade db2-merge-backup-<VERSION_BEFORE_12.1.0.0> sudo dnf versionlock add db2-merge-backup
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-2025-33130?

db2 merge backup: downgrade or apply the listed mitigation; db2 merge backup: downgrade or apply the listed mitigation; db2 merge backup: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2025-33130 being exploited?

CVE-2025-33130 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-2025-33130 affect?

CVE-2025-33130 affects db2 merge backup, db2 merge backup, db2 merge backup. Severity is medium (CVSS 6.5). IBM DB2 Merge Backup for Linux, UNIX and Windows 12.1.0.0 could allow an authenticated user to cause the program to crash due to a buffer being overwritten when it is allocated on the stack.

How urgent is CVE-2025-33130?

Priority 33/100. On your watchlist

Software pages

Windows vulnerabilities

Related CVEs

References

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