CVE-2022-2521

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

1.25% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 67.2% 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:N/UI:R/S:U/C:N/I:N/A:H

NVD analysis status

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

Red Hat severity

Low. 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

2022-08-31 00:00Z4 YR AGO

Last updated

2024-08-03 00:39Z2 YR AGO

Reserved

2022-07-22

Assigning CNA

redhat

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-763Release of Invalid Pointer or ReferenceBase

Data version

5.1

Document digest

df7cebc419fb6dd5d88184fd060df2fcae24fa7ecdba833220f7c8af2ce49d48

• gitlab.comhttps://gitlab.com/libtiff/libtiff/-/issues/422
• gitlab.comhttps://gitlab.com/libtiff/libtiff/-/merge_requests/378
• www.debian.orgDSA-5333https://www.debian.org/security/2023/dsa-5333vendor-advisory