Security readout for executives and security teams
CVE-2020-27153 is a memory-management flaw in BlueZ before 5.55. A remote attacker could potentially crash affected Bluetooth service discovery activity, and the CVE description also allows for possible code execution. Treat this as high priority where BlueZ is present and Bluetooth functionality is exposed. Exposure is most likely on systems running BlueZ before 5.55, particularly where Bluetooth service discovery or gatttool-related functionality is reachable. The source bundle does not provide a complete product inventory or CPE list. Prioritize remediation for Bluetooth-enabled systems because the issue is remotely reachable, unauthenticated, and can affect availability. Code execution is described as potential, but not confirmed as exploited in the provided evidence. Mitigation focus: Upgrade BlueZ to 5.55 or a vendor-fixed package.; Apply Debian, Gentoo, openSUSE, or other distro security updates where applicable.; Check vendor advisories before relying on upstream version numbers alone..
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
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ATT&CK lookup starting points
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Open ATT&CK lookupExecution behavior lookup
The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2020-27153 mapping review
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Open ATT&CK lookup- Severity
- High
- CVSS
- 8.6 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H3.94.7Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
8.6HighVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://github.com/bluez/bluez/commit/5a180f2ec9edfacafd95e5fed20d36fe8e077f07CVE reference · x_refsource_MISC
- https://github.com/bluez/bluez/commit/1cd644db8c23a2f530ddb93cebed7dacc5f5721aCVE reference · x_refsource_MISC
- https://bugzilla.redhat.com/show_bug.cgi?id=1884817CVE reference · x_refsource_MISC
- [debian-lts-announce] 20201021 [SECURITY] [DLA 2410-1] bluez security updateCVE reference · mailing-list, x_refsource_MLIST
- GLSA-202011-01CVE reference · vendor-advisory, x_refsource_GENTOO
- DSA-4951CVE reference · vendor-advisory, x_refsource_DEBIAN
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Double Free
Double Free represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.