CVE-2020-5736

Amcrest cameras and NVR are vulnerable to a null pointer dereference over port 37777. An authenticated remote attacker can abuse this issue to crash the device.

Published: 2020-04-08 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2020-5736 is rated Moderate Risk (51.4/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 0.73%). Review affected assets and schedule remediation.

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

Exploit prediction scoring system (EPSS) score for CVE-2020-5736

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 2025-11-21 0.47% 0.73% +0.26%
2 2025-11-18 0.73% 0.47% -0.26%
3 2025-06-26 — 0.73% —

Full EPSS history (11 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2020-5736

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
6.5 3.1 MEDIUM
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
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:L)
A normal user session is enough; they don’t have to be admin.
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:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 2.8 3.6 [email protected]
6.8 2.0 MEDIUM
AV:N/AC:L/Au:S/C:N/I:N/A:C Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:S)
A single authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:C)
Complete availability impact.
 8.0 6.9 [email protected]

Weakness enumeration for CVE-2020-5736

Affected software / configurations for CVE-2020-5736

Vendor Product Version Raw CPE
amcrest 1080-lite_8ch_firmware — cpe:2.3:o:amcrest:1080-lite_8ch_firmware:-:*:*:*:*:*:*:*
amcrest amdv10814-h5_firmware — cpe:2.3:o:amcrest:amdv10814-h5_firmware:-:*:*:*:*:*:*:*
amcrest ipm-721_firmware < v2.420.ac00.18.r.20200217 cpe:2.3:o:amcrest:ipm-721_firmware:*:*:*:*:*:*:*:*
amcrest ip2m-841_firmware < v2.420.ac00.18.r.20200217 cpe:2.3:o:amcrest:ip2m-841_firmware:*:*:*:*:*:*:*:*
amcrest ip2m-841-v3_firmware < v2.800.0000000.6.r.200314 cpe:2.3:o:amcrest:ip2m-841-v3_firmware:*:*:*:*:*:*:*:*
amcrest ip2m-853ew_firmware < v2.623.00ac004.0.r.200316 cpe:2.3:o:amcrest:ip2m-853ew_firmware:*:*:*:*:*:*:*:*
amcrest ip2m-858w_firmware < v2.623.00ac004.0.r.200316 cpe:2.3:o:amcrest:ip2m-858w_firmware:*:*:*:*:*:*:*:*
amcrest ip2m-866w_firmware < v2.623.00ac004.0.r.200316 cpe:2.3:o:amcrest:ip2m-866w_firmware:*:*:*:*:*:*:*:*
amcrest ip2m-866ew_firmware < v2.623.00ac004.0.r.200316 cpe:2.3:o:amcrest:ip2m-866ew_firmware:*:*:*:*:*:*:*:*
amcrest ip4m-1053ew_firmware < v2.623.00ac004.0.r.200316 cpe:2.3:o:amcrest:ip4m-1053ew_firmware:*:*:*:*:*:*:*:*
amcrest ip8m-2454ew_firmware < v2.622.00ac000.0.r.200320 cpe:2.3:o:amcrest:ip8m-2454ew_firmware:*:*:*:*:*:*:*:*
amcrest ip8m-2493eb_firmware < v2.622.00ac000.0.r.200320 cpe:2.3:o:amcrest:ip8m-2493eb_firmware:*:*:*:*:*:*:*:*
amcrest ip8m-2496eb_firmware < v2.622.00ac000.0.r.200320 cpe:2.3:o:amcrest:ip8m-2496eb_firmware:*:*:*:*:*:*:*:*
amcrest ip8m-2597e_firmware < v2.800.00ac000.0.r.200330 cpe:2.3:o:amcrest:ip8m-2597e_firmware:*:*:*:*:*:*:*:*
amcrest ip8m-mb2546ew_firmware < v2.622.00ac000.0.r.200320 cpe:2.3:o:amcrest:ip8m-mb2546ew_firmware:*:*:*:*:*:*:*:*
amcrest ip8m-mt2544ew_firmware < v2.622.00ac000.0.r.200320 cpe:2.3:o:amcrest:ip8m-mt2544ew_firmware:*:*:*:*:*:*:*:*
amcrest ip8m-t2499ew_firmware < v2.622.00ac000.0.r.200320 cpe:2.3:o:amcrest:ip8m-t2499ew_firmware:*:*:*:*:*:*:*:*
amcrest ipm-hx1_firmware < v2.420.ac00.18.r.20200217 cpe:2.3:o:amcrest:ipm-hx1_firmware:*:*:*:*:*:*:*:*

References for CVE-2020-5736

cvelogic Threat Intelligence