CVE-2021-22879

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

5.03% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 92.0% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

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

2021-04-14 12:41Z5 YR AGO

Last updated

2024-08-03 18:51Z2 YR AGO

Reserved

2021-01-06

Assigning CNA

hackerone

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-99Improper Control of Resource Identifiers ('Resource Injection')Class
• CWE-74Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')Class

Data version

5.1

Document digest

f0b6fb70d8d90cd7818aa2e5380078d52aa0c387e457865cae1601b4f4ffa426

• hackerone.comhttps://hackerone.com/reports/1078002x_refsource_MISC
• nextcloud.comhttps://nextcloud.com/security/advisory/?id=NC-SA-2021-008x_refsource_MISC
• github.comhttps://github.com/nextcloud/desktop/pull/2906x_refsource_MISC
• lists.fedoraproject.orgFEDORA-2021-1ffffa0251https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/MTWBJAS5DJJIK7LLVBZZQTSJASUVIRVE/vendor-advisoryx_refsource_FEDORA
• security.gentoo.orgGLSA-202105-37https://security.gentoo.org/glsa/202105-37vendor-advisoryx_refsource_GENTOO