CVE-2021-42794

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

1.20% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 65.9% of scored records. A rank, not a probability.

NVD base score

5.3 (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:L/I:N/A:N

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.

Published

2023-12-16 00:00Z2 YR AGO

Last updated

2024-08-04 03:38Z2 YR AGO

Reserved

2021-10-21

Assigning CNA

mitre

Record state

PUBLISHED

Severity

Medium (CVSS 5.3)

CNA CVSS vector

CVSS:3.1/AC:L/AV:N/A:N/C:L/I:N/PR:N/S:U/UI:N

Weaknesses

No CWE assigned

Data version

5.1

Document digest

d04a45dd181bb559794927b8ebe51818290d749161b93ec87d884973111f96e2

• www.exploit-db.comhttps://www.exploit-db.com/docs/english/17254-connection-string-parameter-pollution-attacks.pdf
• www.aveva.comhttps://www.aveva.com/en/products/edge/
• www.cisa.govhttps://www.cisa.gov/news-events/ics-advisories/icsa-22-326-01