CVE-2020-12351

Exp

Improper input validation in BlueZ may allow an unauthenticated user to potentially enable escalation of privilege via adjacent access.

Published: 2020-11-23 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2020-12351 is rated High Exploit Risk (83/100): CVSS High severity, with high exploitation likelihood (EPSS 7.69%, 94th percentile). 2 public exploit reference(s) are indexed (Exploit-DB). Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Public exploit references (Exploit-DB) for CVE-2020-12351

EDB-ID Source Kind Published Link
49754 exploit_db edb 2021-04-08 Exploit-DB ↗
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2020-12351

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-20 7.76% 7.69% -0.06%
2 2026-06-15 2.87% 7.76% +4.88%
3 2026-05-08 — 2.87% —

Full EPSS history (30 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2020-12351

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
8.8 3.1 HIGH
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:A)
Attacker has to be nearby on the network—same office, same link, that vibe—not the whole wide internet.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:N)
No account or special rights needed—anonymous or random user is enough.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 2.8 5.9 [email protected]
5.8 2.0 MEDIUM
AV:A/AC:L/Au:N/C:P/I:P/A:P Click to expand
Access vector (AV:A)
Requires access to an adjacent network segment.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:P)
Partial availability impact.
 6.5 6.4 [email protected]

Weakness enumeration for CVE-2020-12351

OS Trackers for CVE-2020-12351

vendor priority summary link
debian not yet assigned CVE-2020-12351 not yet assigned priority: Debian including 1 source packages (linux), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2020-12351
redhat high — https://access.redhat.com/security/cve/CVE-2020-12351
suse high CVE-2020-12351 severity important: SUSE including 662 source package names (amazon/suse-sles-15-sp1-chost-byos-v20210304-hvm-ssd-x86_64, amazon/suse-sles-15-sp1-chost-byos-v20220127-hvm-ssd-x86_64, …), 1133 product×package rows across 122 product lines (HPE Helion OpenStack 8, Image SLES12-SP5-Azure-BYOS, … (122 product lines)): Fixed 871, Known Affected 157, Known Not Affected 105. https://www.suse.com/security/cve/CVE-2020-12351/
ubuntu high CVE-2020-12351 high priority: Ubuntu including 115 source packages (linux, linux-aws, …), 1193 status rows across 12 suites (bionic, focal, groovy, hirsute, jammy, noble, oracular, plucky, questing, trusty, upstream, xenial): DNE 857, released 166, not-affected 161, ignored 9. https://ubuntu.com/security/CVE-2020-12351

Affected software / configurations for CVE-2020-12351

Vendor Product Version Raw CPE
linux linux_kernel >= 4.7.7, < 4.9.240 cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
linux linux_kernel >= 4.10, < 4.14.202 cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
linux linux_kernel >= 4.15, < 4.19.152 cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
linux linux_kernel >= 4.20, < 5.4.72 cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
linux linux_kernel >= 5.5, < 5.8.16 cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
linux linux_kernel 5.9.0 cpe:2.3:o:linux:linux_kernel:5.9.0:-:*:*:*:*:*:*
linux linux_kernel 5.9.0 cpe:2.3:o:linux:linux_kernel:5.9.0:rc1:*:*:*:*:*:*
linux linux_kernel 5.9.0 cpe:2.3:o:linux:linux_kernel:5.9.0:rc2:*:*:*:*:*:*
linux linux_kernel 5.9.0 cpe:2.3:o:linux:linux_kernel:5.9.0:rc3:*:*:*:*:*:*
linux linux_kernel 5.9.0 cpe:2.3:o:linux:linux_kernel:5.9.0:rc4:*:*:*:*:*:*
linux linux_kernel 5.9.0 cpe:2.3:o:linux:linux_kernel:5.9.0:rc5:*:*:*:*:*:*
linux linux_kernel 5.9.0 cpe:2.3:o:linux:linux_kernel:5.9.0:rc6:*:*:*:*:*:*
linux linux_kernel 5.9.1 cpe:2.3:o:linux:linux_kernel:5.9.1:*:*:*:*:*:*:*

References for CVE-2020-12351

cvelogic Threat Intelligence