How severe is CVE-2015-8523?

CVE-2015-8523 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2015-8523 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (70th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2015-8523?

CVE-2015-8523 primarily affects Ibm Tivoli Storage Manager Fastback. In total, 35 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2015-8523?

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-2015-8523 published?

CVE-2015-8523 was published on 2016-04-05 and last updated on 2026-06-17.

CVE-2015-8523

CVE-2015-8523 is a high-severity vulnerability in Ibm Tivoli Storage Manager Fastback with a CVSS 3.x base score of 7.5. 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-284.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v2: 5.0
EPSS exploit prediction: 1% (70th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-284
Affected product: Ibm Tivoli Storage Manager Fastback
Published: 2016-04-05
Last modified: 2026-06-17

Description

The server in IBM Tivoli Storage Manager FastBack 5.5.x and 6.x before 6.1.12.2 allows remote attackers to cause a denial of service (service crash) via crafted packets to a TCP port.

Frequently asked questions

What is CVE-2015-8523?: The server in IBM Tivoli Storage Manager FastBack 5.5.x and 6.x before 6.1.12.2 allows remote attackers to cause a denial of service (service crash) via crafted packets to a TCP port.
How severe is CVE-2015-8523?: CVE-2015-8523 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2015-8523 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (70th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2015-8523?: CVE-2015-8523 primarily affects Ibm Tivoli Storage Manager Fastback. In total, 35 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2015-8523?: 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-2015-8523 published?: CVE-2015-8523 was published on 2016-04-05 and last updated on 2026-06-17.

References

Affected products (35)

cpe:2.3:a:ibm:tivoli_storage_manager_fastback:5.5.0:*:*:*:*:*:*:*
cpe:2.3:a:ibm:tivoli_storage_manager_fastback:6.1.0:*:*:*:*:*:*:*
cpe:2.3:a:ibm:tivoli_storage_manager_fastback:6.1.0.1:*:*:*:*:*:*:*
cpe:2.3:a:ibm:tivoli_storage_manager_fastback:6.1.1:*:*:*:*:*:*:*
cpe:2.3:a:ibm:tivoli_storage_manager_fastback:6.1.1.0:*:*:*:*:*:*:*
cpe:2.3:a:ibm:tivoli_storage_manager_fastback:6.1.2:*:*:*:*:*:*:*
cpe:2.3:a:ibm:tivoli_storage_manager_fastback:6.1.2.0:*:*:*:*:*:*:*
cpe:2.3:a:ibm:tivoli_storage_manager_fastback:6.1.3:*:*:*:*:*:*:*
cpe:2.3:a:ibm:tivoli_storage_manager_fastback:6.1.3.0:*:*:*:*:*:*:*
cpe:2.3:a:ibm:tivoli_storage_manager_fastback:6.1.4:*:*:*:*:*:*:*
cpe:2.3:a:ibm:tivoli_storage_manager_fastback:6.1.4.0:*:*:*:*:*:*:*
cpe:2.3:a:ibm:tivoli_storage_manager_fastback:6.1.5:*:*:*:*:*:*:*
cpe:2.3:a:ibm:tivoli_storage_manager_fastback:6.1.5.0:*:*:*:*:*:*:*
cpe:2.3:a:ibm:tivoli_storage_manager_fastback:6.1.5.2:*:*:*:*:*:*:*
cpe:2.3:a:ibm:tivoli_storage_manager_fastback:6.1.6:*:*:*:*:*:*:*
cpe:2.3:a:ibm:tivoli_storage_manager_fastback:6.1.6.0:*:*:*:*:*:*:*
cpe:2.3:a:ibm:tivoli_storage_manager_fastback:6.1.6.1:*:*:*:*:*:*:*
cpe:2.3:a:ibm:tivoli_storage_manager_fastback:6.1.6.2:*:*:*:*:*:*:*
cpe:2.3:a:ibm:tivoli_storage_manager_fastback:6.1.7:*:*:*:*:*:*:*
cpe:2.3:a:ibm:tivoli_storage_manager_fastback:6.1.7.0:*:*:*:*:*:*:*
cpe:2.3:a:ibm:tivoli_storage_manager_fastback:6.1.7.1:*:*:*:*:*:*:*
cpe:2.3:a:ibm:tivoli_storage_manager_fastback:6.1.7.2:*:*:*:*:*:*:*
cpe:2.3:a:ibm:tivoli_storage_manager_fastback:6.1.8:*:*:*:*:*:*:*
cpe:2.3:a:ibm:tivoli_storage_manager_fastback:6.1.8.0:*:*:*:*:*:*:*
cpe:2.3:a:ibm:tivoli_storage_manager_fastback:6.1.9:*:*:*:*:*:*:*
cpe:2.3:a:ibm:tivoli_storage_manager_fastback:6.1.9.0:*:*:*:*:*:*:*
cpe:2.3:a:ibm:tivoli_storage_manager_fastback:6.1.9.1:*:*:*:*:*:*:*
cpe:2.3:a:ibm:tivoli_storage_manager_fastback:6.1.10:*:*:*:*:*:*:*
cpe:2.3:a:ibm:tivoli_storage_manager_fastback:6.1.10.0:*:*:*:*:*:*:*
cpe:2.3:a:ibm:tivoli_storage_manager_fastback:6.1.10.1:*:*:*:*:*:*:*
cpe:2.3:a:ibm:tivoli_storage_manager_fastback:6.1.11:*:*:*:*:*:*:*
cpe:2.3:a:ibm:tivoli_storage_manager_fastback:6.1.11.0:*:*:*:*:*:*:*
cpe:2.3:a:ibm:tivoli_storage_manager_fastback:6.1.11.1:*:*:*:*:*:*:*
cpe:2.3:a:ibm:tivoli_storage_manager_fastback:6.1.12:*:*:*:*:*:*:*
cpe:2.3:a:ibm:tivoli_storage_manager_fastback:6.1.12.1:*:*:*:*:*:*:*

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