CVE-2020-27153

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.
• AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
• 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

4.32% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 91.1% of scored records. A rank, not a probability.

NVD base score

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

NVD CVSS vector

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

2020-10-15 02:53Z6 YR AGO

Last updated

2026-04-15 21:08Z6 MO AGO

Reserved

2020-10-15

Assigning CNA

mitre

Record state

PUBLISHED

Severity

High (CVSS 8.6)

CNA CVSS vector

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

Weaknesses

• CWE-415Double FreeVariant
• CWE-416Use After FreeVariant

Data version

5.2

Document digest

7f77972dcfa76838117921940ee86399a534b80cf38e3418bed6a11740e40560

• github.comhttps://github.com/bluez/bluez/commit/5a180f2ec9edfacafd95e5fed20d36fe8e077f07x_refsource_MISC
• github.comhttps://github.com/bluez/bluez/commit/1cd644db8c23a2f530ddb93cebed7dacc5f5721ax_refsource_MISC
• bugzilla.redhat.comhttps://bugzilla.redhat.com/show_bug.cgi?id=1884817x_refsource_MISC
• lists.debian.org[debian-lts-announce] 20201021 [SECURITY] [DLA 2410-1] bluez security updatehttps://lists.debian.org/debian-lts-announce/2020/10/msg00022.htmlmailing-listx_refsource_MLIST
• security.gentoo.orgGLSA-202011-01https://security.gentoo.org/glsa/202011-01vendor-advisoryx_refsource_GENTOO
• lists.opensuse.orgopenSUSE-SU-2020:1876http://lists.opensuse.org/opensuse-security-announce/2020-11/msg00034.htmlvendor-advisoryx_refsource_SUSE
• lists.opensuse.orgopenSUSE-SU-2020:1880http://lists.opensuse.org/opensuse-security-announce/2020-11/msg00036.htmlvendor-advisoryx_refsource_SUSE
• www.debian.orgDSA-4951https://www.debian.org/security/2021/dsa-4951vendor-advisoryx_refsource_DEBIAN