CVE-2021-32777

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

3.33% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 87.5% of scored records. A rank, not a probability.

NVD base score

8.3 (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:C/C:L/I:L/A:L

NVD analysis status

Modified. NVD last modified this record on 2026-06-17.

Red Hat severity

Important. Red Hat's rating for its own products, not a CVSS rating.

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

2021-08-24 20:25Z5 YR AGO

Last updated

2024-08-03 23:33Z2 YR AGO

Reserved

2021-05-12

Assigning CNA

GitHub_M

Record state

PUBLISHED

Severity

High (CVSS 8.6)

CNA CVSS vector

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

Weaknesses

• CWE-551Incorrect Behavior Order: Authorization Before Parsing and CanonicalizationBase
• CWE-863Incorrect AuthorizationClass

Data version

5.1

Document digest

5240343d42d35124899fb0fca87655368907c5c46913acd6c3f2fb77d3fbda74

• github.comhttps://github.com/envoyproxy/envoy/security/advisories/GHSA-6g4j-5vrw-2m8hx_refsource_CONFIRM
• www.envoyproxy.iohttps://www.envoyproxy.io/docs/envoy/v1.19.0/version_history/version_historyx_refsource_MISC