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» CVE-2021-37583
MediaTek microchips, as used in NETGEAR devices through 2021-11-11 and other devices, mishandle IEEE 1905 protocols. (Affected Chipsets MT7603E, MT7613, MT7615, MT7622, MT7628, MT7629, MT7915; Affected Software Versions 2.0.2; Out-of-bounds write).
NVD Status： Modified ，CVE State: published
Threat Intelligence & Risk Assessment for CVE-2021-37583
Conclusion & alert: CVE-2021-37583 is rated Moderate Risk (56.5/100) : CVSS High severity, with medium exploitation likelihood (EPSS 0.55%).Mandatory action: 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-2021-37583
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
2026-03-18
0.55%
0.55%
+0.00%
2
2025-12-16
0.60%
0.55%
-0.06%
3
2025-11-21
—
0.60%
—
Full EPSS history
(12 records total)
Common vulnerability scoring system (CVSS) metrics for CVE-2021-37583
CVSS metrics for this CVE.
Base score
Version
Severity
Vector
Exploitability
Impact
Score source
8.2
3.1
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:L
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:N)
Data isn’t meaningfully altered or forged.
Availability (A:L)
Might cause slowdowns, glitches, or partial disruption—not a full brick.
3.9
4.2
[email protected]
8.8
3.1
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/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:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
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]
9.3
2.0
HIGH
AV:N/AC:M/Au:N/C:C/I:C/A:C
Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:C)
Complete confidentiality impact.
Integrity impact (I:C)
Complete integrity impact.
Availability impact (A:C)
Complete availability impact.
8.6
10.0
[email protected]
Weakness enumeration for CVE-2021-37583
Affected software / configurations for CVE-2021-37583
References for CVE-2021-37583
cvelogic
Threat Intelligence