Out-of-bounds write in IBM Spectrum Protect
Priority LOW 25CWE-787Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-787 and the CVSS impact.
Summary
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.
Why it matters now
EPSS 0.00287 21st percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| IBM | Spectrum Protect | 7.1; 8.1 | — | No fix listed | CNA |
- Spectrum Protect VendorIBM Affected 7.1; 8.1 Fixed in — No fix listed CNA
CPE configurations NVD · 7
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:ibm:spectrum_protect_backup-archive_client:*:*:*:*:*:*:*:* | 8.1.0.0 – 8.1.12.0 | Vulnerable | IBM |
| cpe:2.3:o:ibm:aix:-:*:*:*:*:*:*:* | not specified by NVD | Running on | IBM |
| cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Linux |
| cpe:2.3:o:oracle:solaris:-:*:*:*:*:*:-:* | not specified by NVD | Running on | Oracle |
| cpe:2.3:a:ibm:spectrum_protect_backup-archive_client:*:*:*:*:*:*:*:* | 7.1.0.0 – 7.1.8.10 | Vulnerable | IBM |
| cpe:2.3:o:hp:hp-ux:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Hewlett Packard Enterprise |
| cpe:2.3:a:ibm:spectrum_protect_for_space_management:*:*:*:*:*:*:*:* | 8.1.0.0 – 8.1.12.0; 7.1.0.0 – 7.1.8.10 | Vulnerable | IBM |
- cpe:2.3:a:ibm:spectrum_protect_backup-archive_client:*:*:*:*:*:*:*:* Versions 8.1.0.0 – 8.1.12.0 Vulnerable ·IBM
- cpe:2.3:o:ibm:aix:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·IBM
- cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Linux
- cpe:2.3:o:oracle:solaris:-:*:*:*:*:*:-:* Versions not specified by NVD Running on ·Oracle
- cpe:2.3:a:ibm:spectrum_protect_backup-archive_client:*:*:*:*:*:*:*:* Versions 7.1.0.0 – 7.1.8.10 Vulnerable ·IBM
- cpe:2.3:o:hp:hp-ux:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Hewlett Packard Enterprise
- cpe:2.3:a:ibm:spectrum_protect_for_space_management:*:*:*:*:*:*:*:* Versions 8.1.0.0 – 8.1.12.0; 7.1.0.0 – 7.1.8.10 Vulnerable ·IBM
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2021-39048
- 2026-10-03 Alias added: GHSA-4h4x-cgp7-h27m
References
Advisory 1
More IBM Spectrum Protect Backup-archive Client vulnerabilities
- TI-2023-13421 IBM Spectrum Protect Backup-Archive Client privilege escalation CVSS 3.1HIGH 8.4
- TI-2021-03773 Incorrect default permissions in IBM Spectrum Protect for Virtual Environments CVSS 3.1HIGH 7.8
- TI-2018-01629 Clickjacking in IBM Spectrum Protect CVSS 3.1MEDIUM 6.1
- TI-2018-01576 Incorrect permission assignment in IBM Spectrum Protect CVSS 3.0MEDIUM 5.5
- TI-2018-01640 Cleartext storage of sensitive information in IBM Spectrum Protect for Space Management CVSS 3.1MEDIUM 4.7
- TI-2019-03257 IBM Spectrum Protect Backup-Archive Client 7.1 and 8.1 may be vulnerable to a denial of… CVSS 3.1MEDIUM 4.4
Sources
- CVE-2021-39048 · CVE Program
- CVE-2021-39048 · NVD
- FIRST EPSS
- GHSA-4h4x-cgp7-h27m · GitHub Advisory Database · CC BY 4.0
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