CVE-2021-42716

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

1.45% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 72.9% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

CVSS:3.1/AV:L/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

2021-10-21 18:36Z5 YR AGO

Last updated

2024-08-04 03:38Z2 YR AGO

Reserved

2021-10-19

Assigning CNA

mitre

Record state

PUBLISHED

Severity

Not rated by the issuing CNA

CNA CVSS vector

Not published by the issuing CNA

Weaknesses

• CWE-120Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')Base
• CWE-125Out-of-bounds ReadBase

Data version

5.1

Document digest

810e3a0e5f8fc248338daf966fe5db8bfb72743d3a34342f5cd0e7583735b5e8

• github.comhttps://github.com/nothings/stb/issues/1166x_refsource_MISC
• github.comhttps://github.com/nothings/stb/pull/1223x_refsource_MISC
• github.comhttps://github.com/nothings/stb/issues/1225x_refsource_MISC
• lists.fedoraproject.orgFEDORA-2021-001f25d986https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/G2M5CRSGPRF7G3YB5CLU4FXW7ANNHAYT/vendor-advisoryx_refsource_FEDORA
• lists.fedoraproject.orgFEDORA-2021-d1446cd1achttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ID6II3RIKAMVGVMC6ZAQIXXYYDMTVC4N/vendor-advisoryx_refsource_FEDORA
• lists.fedoraproject.orgFEDORA-2021-f8ba4a690ehttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BEGXBDEMTFGINETMJENBZ6SCHVEJQJSY/vendor-advisoryx_refsource_FEDORA
• lists.fedoraproject.orgFEDORA-2021-0511a38484https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/CI23LXPEV2GCDQTJSKO6CIILBDTI3R42/vendor-advisoryx_refsource_FEDORA
• lists.fedoraproject.orgFEDORA-2021-082bea5b34https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FTZXHFZD36BGE5P6JF252NZZLKMGCY4T/vendor-advisoryx_refsource_FEDORA
• lists.fedoraproject.orgFEDORA-2021-3fc69d203chttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VP2YEXEAJWI76FPM7D7VXHWD3WESQEYC/vendor-advisoryx_refsource_FEDORA
• lists.fedoraproject.orgFEDORA-2021-8ea648186chttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/3TDGZFLBOP27LZKLH45WQLSNPSPP7S7Z/vendor-advisoryx_refsource_FEDORA
• lists.fedoraproject.orgFEDORA-2021-16d848834dhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AF2CNP4FVC6LDKNOO4WDCGNDYIP3MPK6/vendor-advisoryx_refsource_FEDORA
• lists.fedoraproject.orgFEDORA-2022-832689aa6bhttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TXX76TJMZBPN3NU542MGN6B7C7QHRFGB/vendor-advisoryx_refsource_FEDORA