CVE-2021-42917

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

1.91% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 78.2% of scored records. A rank, not a probability.

NVD base score

5.5 (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: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

2021-11-01 00:00Z4 YR AGO

Last updated

2024-11-18 20:46Z1 YR AGO

Reserved

2021-10-25

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

Data version

5.1

Document digest

db80320442b70a24b719974863261f0420f5cd609d18f6b92b4e595749318217

• github.comhttps://github.com/xbmc/xbmc/issues/20305
• github.comhttps://github.com/xbmc/xbmc/pull/20306
• github.comhttps://github.com/fuzzard/xbmc/commit/80c8138c09598e88b4ddb6dbb279fa193bbb3237
• github.comhttps://github.com/xbmc/xbmc/commit/48730b64494798705d46dfccc4029bd36d072df3
• lists.debian.org[debian-lts-announce] 20240123 [SECURITY] [DLA 3712-1] kodi security updatehttps://lists.debian.org/debian-lts-announce/2024/01/msg00009.htmlmailing-list