CVE-2019-8921

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

1.00% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 62.6% 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:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

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

2021-11-29 00:00Z4 YR AGO

Last updated

2026-04-15 21:08Z6 MO AGO

Reserved

2019-02-18

Assigning CNA

mitre

Record state

PUBLISHED

Severity

Medium (CVSS 6.5)

CNA CVSS vector

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

Weaknesses

• CWE-345Insufficient Verification of Data AuthenticityClass
• CWE-805Buffer Access with Incorrect Length ValueBase

Data version

5.2

Document digest

32428e0d79759520016ad3085bd96be760428c7d4b42dc192bebe0ba059b8a03

• ssd-disclosure.comhttps://ssd-disclosure.com/ssd-advisory-linux-bluez-information-leak-and-heap-overflow/
• security.netapp.comhttps://security.netapp.com/advisory/ntap-20211203-0002/
• lists.debian.org[debian-lts-announce] 20221024 [SECURITY] [DLA 3157-1] bluez security updatehttps://lists.debian.org/debian-lts-announce/2022/10/msg00026.htmlmailing-list