CVE-2021-37789

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

• ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
• AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
• Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.83% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 57.4% of scored records. A rank, not a probability.

NVD base score

8.1 (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:N/A:H

NVD analysis status

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

Red Hat severity

Moderate. 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

2022-11-02 00:00Z3 YR AGO

Last updated

2025-05-02 20:58Z1 YR AGO

Reserved

2021-08-02

Assigning CNA

mitre

Record state

PUBLISHED

Severity

High (CVSS 8.1)

CNA CVSS vector

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

Weaknesses

• CWE-787Out-of-bounds WriteBase
• CWE-125Out-of-bounds ReadBase

Data version

5.1

Document digest

f259421c014a9f87fad21ce823b23b5b8cebd9bf9cc43b5dbe2ac59706fbcd57

• github.comhttps://github.com/nothings/stb/issues/1178
• lists.debian.org[debian-lts-announce] 20230131 [SECURITY] [DLA 3305-1] libstb security updatehttps://lists.debian.org/debian-lts-announce/2023/01/msg00045.htmlmailing-list