How severe is CVE-2026-16879?

CVE-2026-16879 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-16879 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (41st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-16879?

CVE-2026-16879 affects Ibm Db2 Mirror For I. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-16879?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2026-16879 published?

CVE-2026-16879 was published on 2026-08-14 and last updated on 2026-08-20.

CVE-2026-16879

CVE-2026-16879 is a high-severity vulnerability in Ibm Db2 Mirror For I with a CVSS 3.x base score of 8.8. 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-285.

Key facts

Severity: High (CVSS 3.x base score 8.8)
EPSS exploit prediction: 1% (41st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-285
Affected product: Ibm Db2 Mirror For I
Published: 2026-08-14
Last modified: 2026-08-20

Description

IBM Db2 Mirror for i 7.4, 7.5, and 7.6 could allow a remote authenticated attacker to bypass security restrictions due to improper authorization using user-supplied input.

Frequently asked questions

What is CVE-2026-16879?: IBM Db2 Mirror for i 7.4, 7.5, and 7.6 could allow a remote authenticated attacker to bypass security restrictions due to improper authorization using user-supplied input.
How severe is CVE-2026-16879?: CVE-2026-16879 has a CVSS 3.x base score of 8.8, rated high severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-16879 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (41st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-16879?: CVE-2026-16879 affects Ibm Db2 Mirror For I. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-16879?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2026-16879 published?: CVE-2026-16879 was published on 2026-08-14 and last updated on 2026-08-20.

References

https://www.ibm.com/support/pages/node/7283359

Affected products (1)

cpe:2.3:a:ibm:db2_mirror_for_i:*:*:*:*:*:*:*:*

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Other CWE-285 (Improper Authorization) vulnerabilities

CVE-2025-65041 — Critical (CVSS 10.0): Improper authorization in Microsoft Partner Center allows an unauthorized attacker to elevate privileges over a network.
CVE-2023-33189 — Critical (CVSS 10.0): Pomerium is an identity and context-aware access proxy. With specially crafted requests, incorrect authorization…
CVE-2022-2595 — Critical (CVSS 10.0): Improper Authorization in GitHub repository kromitgmbh/titra prior to 0.79.1.
CVE-2021-28799 — Critical (CVSS 10.0): An improper authorization vulnerability has been reported to affect QNAP NAS running HBS 3 (Hybrid Backup Sync. ) If…
CVE-2026-55166 — Critical (CVSS 9.9): Lemur manages TLS certificate creation. Prior to 1.9.2, authenticated users could influence an ACME authority acme_url…
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