CVE-2021-47731 | Selea Targa IP Camera Developer Backdoor Configuration Overwrite

Exp

Selea Targa IP OCR-ANPR Camera contains a hard-coded developer password vulnerability that allows unauthorized configuration access through an undocumented page. Attackers can exploit the hidden endpoint by using the hard-coded password 'Selea781830' to enable configuration upload and overwrite device settings.

Published: 2025-12-09 Last update: 2026-02-23 Assigner: [email protected] Source: [email protected]
NVD Status：Analyzed，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2021-47731 is rated Exploit Available (58.6/100): CVSS Critical severity, with low exploitation likelihood (EPSS 0.06%). 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-2021-47731

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

Exploit prediction scoring system (EPSS) score for CVE-2021-47731

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 2025-12-15 0.04% 0.06% +0.01%
2 2025-12-10 — 0.04% —

Full EPSS history (2 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2021-47731

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
9.3 4.0 CRITICAL
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network.
Attack complexity (AC:L)
Exploitation conditions are straightforward and stable.
Attack requirements (AT:N)
No additional preconditions are required beyond normal reachability.
Privileges required (PR:N)
No privileges are required.
User interaction (UI:N)
No user interaction is required.
Vulnerable system confidentiality impact (VC:H)
High confidentiality impact on the vulnerable system.
Vulnerable system integrity impact (VI:H)
High integrity impact on the vulnerable system.
Vulnerable system availability impact (VA:H)
High availability impact on the vulnerable system.
Subsequent system confidentiality impact (SC:N)
No confidentiality impact on subsequent systems.
Subsequent system integrity impact (SI:N)
No integrity impact on subsequent systems.
Subsequent system availability impact (SA:N)
No availability impact on subsequent systems.
Exploit maturity (threat) (E:X)
Not defined: no reliable threat intelligence; scoring assumes the worst case (equivalent to Attacked).
Confidentiality requirement (CR:X)
Not defined: insufficient information; scoring treats this like High (worst case).
Integrity requirement (IR:X)
Not defined: insufficient information; scoring treats this like High (worst case).
Availability requirement (AR:X)
Not defined: insufficient information; scoring treats this like High (worst case).
Modified attack vector (MAV:X)
Not defined: scoring uses the Base Attack Vector (AV).
Modified attack complexity (MAC:X)
Not defined: scoring uses the Base Attack Complexity (AC).
Modified attack requirements (MAT:X)
Not defined: scoring uses the Base Attack Requirements (AT).
Modified privileges required (MPR:X)
Not defined: scoring uses the Base Privileges Required (PR).
Modified user interaction (MUI:X)
Not defined: scoring uses the Base User Interaction (UI).
Modified vulnerable system confidentiality impact (MVC:X)
Not defined: scoring uses the Base VC metric.
Modified vulnerable system integrity impact (MVI:X)
Not defined: scoring uses the Base VI metric.
Modified vulnerable system availability impact (MVA:X)
Not defined: scoring uses the Base VA metric.
Modified subsequent system confidentiality impact (MSC:X)
Not defined: scoring uses the Base SC metric.
Modified subsequent system integrity impact (MSI:X)
Not defined: scoring uses the Base SI metric.
Modified subsequent system availability impact (MSA:X)
Not defined: scoring uses the Base SA metric.
Safety (supplemental) (S:X)
Not evaluated.
Automatable (supplemental) (AU:X)
Not evaluated.
Recovery (supplemental) (R:X)
Not evaluated.
Value density (supplemental) (V:X)
Not evaluated.
Vulnerability response effort (supplemental) (RE:X)
Not evaluated.
Provider urgency (supplemental) (U:X)
Not evaluated.
 — — [email protected]
9.8 3.1 CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/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: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.
 3.9 5.9 [email protected]

Weakness enumeration for CVE-2021-47731

Affected software / configurations for CVE-2021-47731

Vendor Product Version Raw CPE
selea izero_box_full_firmware — cpe:2.3:o:selea:izero_box_full_firmware:-:*:*:*:*:*:*:*
selea izero_column_entry\/8_firmware — cpe:2.3:o:selea:izero_column_entry\/8_firmware:-:*:*:*:*:*:*:*
selea izero_column_full\/8_firmware — cpe:2.3:o:selea:izero_column_full\/8_firmware:-:*:*:*:*:*:*:*
selea targa_504_firmware — cpe:2.3:o:selea:targa_504_firmware:-:*:*:*:*:*:*:*
selea targa_512_firmware — cpe:2.3:o:selea:targa_512_firmware:-:*:*:*:*:*:*:*
selea targa_704_ilb_firmware — cpe:2.3:o:selea:targa_704_ilb_firmware:-:*:*:*:*:*:*:*
selea targa_704_tkm_firmware — cpe:2.3:o:selea:targa_704_tkm_firmware:-:*:*:*:*:*:*:*
selea targa_710_inox_firmware — cpe:2.3:o:selea:targa_710_inox_firmware:-:*:*:*:*:*:*:*
selea targa_750_firmware — cpe:2.3:o:selea:targa_750_firmware:-:*:*:*:*:*:*:*
selea targa_805_firmware — cpe:2.3:o:selea:targa_805_firmware:-:*:*:*:*:*:*:*
selea targa_semplice_firmware — cpe:2.3:o:selea:targa_semplice_firmware:-:*:*:*:*:*:*:*
selea carplateserver 3.005\(191112\) cpe:2.3:a:selea:carplateserver:3.005\(191112\):*:*:*:*:*:*:*
selea carplateserver 3.005\(191206\) cpe:2.3:a:selea:carplateserver:3.005\(191206\):*:*:*:*:*:*:*
selea carplateserver 3.100\(200225\) cpe:2.3:a:selea:carplateserver:3.100\(200225\):*:*:*:*:*:*:*
selea carplateserver 4.013\(201105\) cpe:2.3:a:selea:carplateserver:4.013\(201105\):*:*:*:*:*:*:*

References for CVE-2021-47731

cvelogic Threat Intelligence