How severe is CVE-2021-39048?

CVE-2021-39048 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2021-39048 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (20th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2021-39048?

CVE-2021-39048 primarily affects Ibm Spectrum Protect Backup-archive Client. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2021-39048?

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

When was CVE-2021-39048 published?

CVE-2021-39048 was published on 2021-12-13 and last updated on 2026-06-17.

CVE-2021-39048

CVE-2021-39048 is a medium-severity vulnerability in Ibm Spectrum Protect Backup-archive Client with a CVSS 3.x base score of 5.5. 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-787.

Key facts

Severity: Medium (CVSS 3.x base score 5.5)
CVSS v2: 2.1
EPSS exploit prediction: 0% (20th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-787
Affected product: Ibm Spectrum Protect Backup-archive Client
Published: 2021-12-13
Last modified: 2026-06-17

Description

IBM Spectrum Protect Client 7.1 and 8.1 is vulnerable to a stack based buffer overflow, caused by improper bounds checking. A local attacker could exploit this vulnerability and cause a denial of service. IBM X-Force ID: 214438.

Frequently asked questions

What is CVE-2021-39048?: IBM Spectrum Protect Client 7.1 and 8.1 is vulnerable to a stack based buffer overflow, caused by improper bounds checking. A local attacker could exploit this vulnerability and cause a denial of service. IBM X-Force ID: 214438.
How severe is CVE-2021-39048?: CVE-2021-39048 has a CVSS 3.x base score of 5.5, rated medium severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2021-39048 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (20th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2021-39048?: CVE-2021-39048 primarily affects Ibm Spectrum Protect Backup-archive Client. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2021-39048?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2021-39048 published?: CVE-2021-39048 was published on 2021-12-13 and last updated on 2026-06-17.

References

Affected products (2)

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

More vulnerabilities in Ibm Spectrum Protect Backup-archive Client

CVE-2023-28956 — High (CVSS 8.4): IBM Spectrum Protect Backup-Archive Client 8.1.0.0 through 8.1.17.2 may allow a local user to escalate their privileges…
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-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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