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01 Record

CVE-2021-29702

Db2 for Linux, UNIX and Windows (includes Db2 Connect Server) 11.1.4 and 11.5.5 is vulnerable to a denial of service as the server terminates abnormally when executing a specially crafted SELECT

HighPUBLISHEDCNA: ibm
CNA base score7.5 CVSS v3.xCVSS:3.0/AV:N/C:N/PR:N/UI:N/S:U/A:H/AC:L/I:N/RL:O/RC:C/E:U
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02 Description

Db2 for Linux, UNIX and Windows (includes Db2 Connect Server) 11.1.4 and 11.5.5 is vulnerable to a denial of service as the server terminates abnormally when executing a specially crafted SELECT

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
1.88% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 79.3% of scored records. A rank, not a probability.
NVD base score
7.5 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/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
2021-06-16 16:15Z5 YR AGO
Last updated
2024-09-16 23:51Z2 YR AGO
Reserved
2021-03-31
Assigning CNA
ibm
Record state
PUBLISHED
Severity
High (CVSS 7.5)
CNA CVSS vector
CVSS:3.0/AV:N/C:N/PR:N/UI:N/S:U/A:H/AC:L/I:N/RL:O/RC:C/E:U
Weaknesses
  • CWE-74Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')Class
Data version
5.1
Document digest
f3ec52b516cbaf6b7b6298ff2b9a410824bbc5fae954a5488b6e675d9eae5708

05 Affected products

VendorProductVersionsPlatforms
IBMDB2 for Linux- UNIX and Windows11.1.4, 11.5.5—

06 References