How severe is CVE-2026-3856?

CVE-2026-3856 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.

Is CVE-2026-3856 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (5th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-3856?

CVE-2026-3856 primarily affects Ibm Db2 Recovery Expert. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2026-3856?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2026-3856 have an EU (EUVD) identifier?

Yes. CVE-2026-3856 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-12657.

When was CVE-2026-3856 published?

CVE-2026-3856 was published on 2026-03-17 and last updated on 2026-06-17.

CVE-2026-3856

CVE-2026-3856 is a medium-severity vulnerability in Ibm Db2 Recovery Expert with a CVSS 3.x base score of 5.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-353.

Key facts

Severity: Medium (CVSS 3.x base score 5.3)
EPSS exploit prediction: 0% (5th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-12657
Weakness: CWE-353
Affected product: Ibm Db2 Recovery Expert
Published: 2026-03-17
Last modified: 2026-06-17

Description

IBM Db2 Recovery Expert for Linux, UNIX and Windows 5.5 IF 2 could allow an attacker to modify or corrupt data due to an insecure mechanism used for verifying the integrity of the data during transmission.

Frequently asked questions

What is CVE-2026-3856?: IBM Db2 Recovery Expert for Linux, UNIX and Windows 5.5 IF 2 could allow an attacker to modify or corrupt data due to an insecure mechanism used for verifying the integrity of the data during transmission.
How severe is CVE-2026-3856?: CVE-2026-3856 has a CVSS 3.x base score of 5.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity low, and availability none.
Is CVE-2026-3856 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (5th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-3856?: CVE-2026-3856 primarily affects Ibm Db2 Recovery Expert. In total, 3 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2026-3856?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-3856 have an EU (EUVD) identifier?: Yes. CVE-2026-3856 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-12657.
When was CVE-2026-3856 published?: CVE-2026-3856 was published on 2026-03-17 and last updated on 2026-06-17.

References

https://www.ibm.com/support/pages/node/7266272

Affected products (3)

cpe:2.3:a:ibm:db2_recovery_expert:5.5.0:interim_fix_002:*:*:*:linux:*:*
cpe:2.3:a:ibm:db2_recovery_expert:5.5.0:interim_fix_002:*:*:*:unix:*:*
cpe:2.3:a:ibm:db2_recovery_expert:5.5.0:interim_fix_002:*:*:*:windows:*:*

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