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01 Record

CVE-2021-20546

IBM Spectrum Protect Client 8.1.0.0 through 8.1.11.0 is vulnerable to a stack-based buffer overflow, caused by improper bounds checking. A local attacker could overflow a buffer and cause the

MediumPUBLISHEDCNA: ibm
CNA base score6.2 CVSS v3.xCVSS:3.0/A:H/S:U/I:N/UI:N/AV:L/AC:L/C:N/PR:N/RL:O/RC:C/E:U
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02 Description

IBM Spectrum Protect Client 8.1.0.0 through 8.1.11.0 is vulnerable to a stack-based buffer overflow, caused by improper bounds checking. A local attacker could overflow a buffer and cause the

03 Exploitation and scoring

Exploitation
Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
SSVC decision
Not assessed by CISA
EPSS probability
0.26% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 18.3% of scored records. A rank, not a probability.
NVD base score
5.5 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
NVD analysis status
Modified. NVD last modified this record on 2026-06-17.
Red Hat severity
No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2021-04-26 16:30Z5 YR AGO
Last updated
2024-09-16 19:19Z2 YR AGO
Reserved
2020-12-17
Assigning CNA
ibm
Record state
PUBLISHED
Severity
Medium (CVSS 6.2)
CNA CVSS vector
CVSS:3.0/A:H/S:U/I:N/UI:N/AV:L/AC:L/C:N/PR:N/RL:O/RC:C/E:U
Weaknesses
Data version
5.1
Document digest
46c3ca83de26d723bfbacef20e923b3a162c7e5b8f3815bb9d043f82302d4594

05 Affected products

VendorProductVersionsPlatforms
IBMSpectrum Protect for Space Management8.1.0.0, 8.1.11.0—

06 References