How severe is CVE-2023-28956?

CVE-2023-28956 has a CVSS 3.x base score of 8.4, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2023-28956 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (6th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-28956?

CVE-2023-28956 affects Ibm Spectrum Protect Backup-archive Client. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-28956?

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-2023-28956 published?

CVE-2023-28956 was published on 2023-06-22 and last updated on 2026-06-17.

CVE-2023-28956

CVE-2023-28956 is a high-severity vulnerability in Ibm Spectrum Protect Backup-archive Client with a CVSS 3.x base score of 8.4. 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-266.

Key facts

Severity: High (CVSS 3.x base score 8.4)
EPSS exploit prediction: 0% (6th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-266
Affected product: Ibm Spectrum Protect Backup-archive Client
Published: 2023-06-22
Last modified: 2026-06-17

Description

IBM Spectrum Protect Backup-Archive Client 8.1.0.0 through 8.1.17.2 may allow a local user to escalate their privileges due to improper access controls.

Frequently asked questions

What is CVE-2023-28956?: IBM Spectrum Protect Backup-Archive Client 8.1.0.0 through 8.1.17.2 may allow a local user to escalate their privileges due to improper access controls.
How severe is CVE-2023-28956?: CVE-2023-28956 has a CVSS 3.x base score of 8.4, rated high severity. It is exploitable over local access with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2023-28956 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (6th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-28956?: CVE-2023-28956 affects Ibm Spectrum Protect Backup-archive Client. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-28956?: 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-2023-28956 published?: CVE-2023-28956 was published on 2023-06-22 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:ibm:spectrum_protect_backup-archive_client:*:*:*:*:*:*:*:*

More vulnerabilities in Ibm Spectrum Protect Backup-archive Client

CVE-2021-20532 — High (CVSS 7.8): IBM Spectrum Protect Client 8.1.0.0 through 8.1.11.0 could allow a local user to escalate their privileges to take full…
CVE-2018-1853 — Medium (CVSS 6.1): IBM Tivoli Storage Manager (IBM Spectrum Protect 7.1 and 8.1) could allow a remote attacker to hijack the clicking…
CVE-2021-39048 — Medium (CVSS 5.5): IBM Spectrum Protect Client 7.1 and 8.1 is vulnerable to a stack based buffer overflow, caused by improper bounds…
CVE-2018-1787 — Medium (CVSS 5.1): IBM Spectrum Protect 7.1 and 8.1 is affected by a password exposure vulnerability caused by insecure file permissions.…
CVE-2018-1882 — Medium (CVSS 4.7): In a certain atypical IBM Spectrum Protect 7.1 and 8.1 configurations, the node password could be displayed in plain…
CVE-2019-4406 — Medium (CVSS 4.4): IBM Spectrum Protect Backup-Archive Client 7.1 and 8.1 may be vulnerable to a denial of service attack due to a timing…

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