CVE-2021-41767

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

1.93% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 78.2% of scored records. A rank, not a probability.

NVD base score

6.5 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

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

2022-01-11 22:10Z4 YR AGO

Last updated

2024-08-04 03:15Z2 YR AGO

Reserved

2021-09-28

Assigning CNA

apache

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-200Exposure of Sensitive Information to an Unauthorized ActorClass

Data version

5.1

Document digest

7b3812cbad5700c39356032cfacc4a323e41f4a2fad8005f8fba18cfcae04836

• lists.apache.orghttps://lists.apache.org/thread/5l31k4jmzdsfz0xt8osrbl878gb3b7rox_refsource_MISC
• www.openwall.com[oss-security] 20220111 [SECURITY] CVE-2021-41767: Apache Guacamole: Private tunnel identifier may be included in the non-private details of active connectionshttp://www.openwall.com/lists/oss-security/2022/01/11/6mailing-listx_refsource_MLIST