HIGH
CVE-2020-27153
CWE-415Published: October 15, 2020· Updated: Jun 17, 2026
8.6
CVSS v3.1
Official Description
In BlueZ before 5.55, a double free was found in the gatttool disconnect_cb() routine from shared/att.c. A remote attacker could potentially cause a denial of service or code execution, during service discovery, due to a redundant disconnect MGMT event.
Technical Analysis
CVE-2020-27153 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.
A successful exploit results in availability disruption (denial of service), with a CVSS base score of 8.6.
CVSS v3.1 Vector Breakdown
Exploitability
Attack VectorNetwork
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityLow
IntegrityLow
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H
Affected Vendors & Products
Exploit & PoC Resources
NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.
Official Patches & Advisories
All References (16)
→
http://lists.opensuse.org/opensuse-security-announce/2020-11/msg00034.htmlMailing List · Third Party Advisory
→
http://lists.opensuse.org/opensuse-security-announce/2020-11/msg00036.htmlMailing List · Third Party Advisory
→
https://bugzilla.redhat.com/show_bug.cgi?id=1884817Issue Tracking · Third Party Advisory
→
https://github.com/bluez/bluez/commit/1cd644db8c23a2f530ddb93cebed7dacc5f5721aPatch · Third Party Advisory
→
https://github.com/bluez/bluez/commit/5a180f2ec9edfacafd95e5fed20d36fe8e077f07Patch · Third Party Advisory
→
https://lists.debian.org/debian-lts-announce/2020/10/msg00022.htmlMailing List · Third Party Advisory
→
https://security.gentoo.org/glsa/202011-01Third Party Advisory
→
https://www.debian.org/security/2021/dsa-4951Third Party Advisory
→
http://lists.opensuse.org/opensuse-security-announce/2020-11/msg00034.htmlMailing List · Third Party Advisory
→
http://lists.opensuse.org/opensuse-security-announce/2020-11/msg00036.htmlMailing List · Third Party Advisory
→
https://bugzilla.redhat.com/show_bug.cgi?id=1884817Issue Tracking · Third Party Advisory
→
https://github.com/bluez/bluez/commit/1cd644db8c23a2f530ddb93cebed7dacc5f5721aPatch · Third Party Advisory
→
https://github.com/bluez/bluez/commit/5a180f2ec9edfacafd95e5fed20d36fe8e077f07Patch · Third Party Advisory
→
https://lists.debian.org/debian-lts-announce/2020/10/msg00022.htmlMailing List · Third Party Advisory
→
https://security.gentoo.org/glsa/202011-01Third Party Advisory
Quick Facts
CVE IDCVE-2020-27153
CVSS Score8.6 / 10
SeverityHIGH
WeaknessCWE-415
CISA KEVNo
Affected3 vendor(s)
PublishedOct 15, 2020
Related CVEs (CWE-415)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2020-27153 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.