CVE-2021-23409

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

1.64% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 76.0% 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.

Published

2021-07-21 06:45Z5 YR AGO

Last updated

2024-09-16 20:07Z2 YR AGO

Reserved

2021-01-08

Assigning CNA

snyk

Record state

PUBLISHED

Severity

High (CVSS 7.5)

CNA CVSS vector

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

Weaknesses

No CWE assigned

Data version

5.1

Document digest

0e0b5b227d7209c01610f624e0335e0c8816983418996a82f9ac962ca297b4c3

• snyk.iohttps://snyk.io/vuln/SNYK-GOLANG-GITHUBCOMPIRESGOPROXYPROTO-1316439x_refsource_MISC
• github.comhttps://github.com/pires/go-proxyproto/releases/tag/v0.6.0x_refsource_MISC
• github.comhttps://github.com/pires/go-proxyproto/issues/65x_refsource_MISC
• github.comhttps://github.com/pires/go-proxyproto/pull/74x_refsource_MISC
• github.comhttps://github.com/pires/go-proxyproto/pull/74/commits/cdc63867da24fc609b727231f682670d0d1cd346x_refsource_MISC