CVE-2018-20785

Exp

Secure boot bypass and memory extraction can be achieved on Neato Botvac Connected 2.2.0 devices. During startup, the AM335x secure boot feature decrypts and executes firmware. Secure boot can be bypassed by starting with certain commands to the USB serial port. Although a power cycle occurs, this does not completely reset the chip: memory contents are still in place. Also, it restarts into a boot menu that enables XMODEM upload and execution of an unsigned QNX IFS system image, thereby completing the bypass of secure boot. Moreover, the attacker can craft custom IFS data and write it to unused memory to extract all memory contents that had previously been present. This includes the original firmware and sensitive information such as Wi-Fi credentials.

Published: 2019-02-23 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2018-20785 is rated Exploit Available (58.4/100): CVSS High severity, with low exploitation likelihood (EPSS 0.11%). 1 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-2018-20785

EDB-ID Source Kind Published Link
— nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2018-20785

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 2023-03-07 1.04% 0.11% -0.93%
2 2022-02-04 0.73% 1.04% +0.30%
3 2021-04-14 — 0.73% —

Full EPSS history (3 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2018-20785

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.4 3.0 HIGH
CVSS:3.0/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:H)
Even with access, the exploit needs extra luck, timing, or a fussy environment to actually work.
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.
 1.4 5.9 [email protected]
4.4 2.0 MEDIUM
AV:L/AC:M/Au:N/C:P/I:P/A:P Click to expand
Access vector (AV:L)
Requires local access to the target system.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
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.
 3.4 6.4 [email protected]

Weakness enumeration for CVE-2018-20785

Affected software / configurations for CVE-2018-20785

Vendor Product Version Raw CPE
neatorobotics botvac_d4_connected_firmware 2.2.0 cpe:2.3:o:neatorobotics:botvac_d4_connected_firmware:2.2.0:*:*:*:*:*:*:*
neatorobotics botvac_d6_connected_firmware 2.2.0 cpe:2.3:o:neatorobotics:botvac_d6_connected_firmware:2.2.0:*:*:*:*:*:*:*
neatorobotics botvac_d5_connected_firmware 2.2.0 cpe:2.3:o:neatorobotics:botvac_d5_connected_firmware:2.2.0:*:*:*:*:*:*:*
neatorobotics botvac_d7_connected_firmware 2.2.0 cpe:2.3:o:neatorobotics:botvac_d7_connected_firmware:2.2.0:*:*:*:*:*:*:*
neatorobotics botvac_d3_connected_firmware 2.2.0 cpe:2.3:o:neatorobotics:botvac_d3_connected_firmware:2.2.0:*:*:*:*:*:*:*
neatorobotics botvac_d3_pro_connected_firmware 2.2.0 cpe:2.3:o:neatorobotics:botvac_d3_pro_connected_firmware:2.2.0:*:*:*:*:*:*:*
neatorobotics botvac_connected_firmware 2.2.0 cpe:2.3:o:neatorobotics:botvac_connected_firmware:2.2.0:*:*:*:*:*:*:*

References for CVE-2018-20785

cvelogic Threat Intelligence