CVE-2021-27799

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

2.37% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 82.3% 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

2021-02-26 21:31Z5 YR AGO

Last updated

2024-08-03 21:33Z2 YR AGO

Reserved

2021-02-26

Assigning CNA

mitre

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-787Out-of-bounds WriteBase

Data version

5.1

Document digest

9d48ce226ab6246b70ba151e15a232cbe434f06c10b07c839c21616bbac61d6c

• sourceforge.nethttps://sourceforge.net/p/zint/tickets/218/x_refsource_MISC
• zint.org.ukhttp://zint.org.uk/Manual.aspx?type=p&page=3x_refsource_MISC
• zint.org.ukhttp://zint.org.uk/Manual.aspx?type=p&page=4x_refsource_MISC
• zint.org.ukhttp://zint.org.uk/Manual.aspx?type=p&page=5x_refsource_MISC
• sourceforge.nethttps://sourceforge.net/p/zint/code/ci/7f8c8114f31c09a986597e0ba63a49f96150368a/x_refsource_MISC