CVE-2026-1668 | Input Validation Vulnerability on Multiple Omada Switches

The web interface on multiple Omada switches does not adequately validate certain external inputs, which may lead to out-of-bound memory access when processing crafted requests. Under specific conditions, this flaw may result in unintended command execution.<br>An unauthenticated attacker with network access to the affected interface may cause memory corruption, service instability, or information disclosure. Successful exploitation may allow remote code execution or denial-of-service.

Published: 2026-03-13 Last update: 2026-04-02 Assigner: f23511db-6c3e-4e32-a477-6aa17d310630 Source: f23511db-6c3e-4e32-a477-6aa17d310630
NVD Status：Analyzed，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2026-1668 is rated Moderate Risk (42.2/100): CVSS High severity, with low exploitation likelihood (EPSS 0.14%). 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-2026-1668

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 2026-04-21 0.37% 0.14% -0.23%
2 2026-04-03 0.06% 0.37% +0.31%
3 2026-03-14 — 0.06% —

Full EPSS history (3 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2026-1668

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
7.7 4.0 HIGH
CVSS:4.0/AV:A/AC:H/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:A)
Attacker has to be on an adjacent/local network segment.
Attack complexity (AC:H)
Exploitation depends on constrained or hard-to-reproduce conditions.
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.
 — — f23511db-6c3e-4e32-a477-6aa17d310630
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-2026-1668

Affected software / configurations for CVE-2026-1668

Vendor Product Version Raw CPE
tp-link omada_sg2005p-pd_firmware >= 1.0.0, < 1.0.19 cpe:2.3:o:tp-link:omada_sg2005p-pd_firmware:*:*:*:*:*:*:*:*
tp-link omada_sg2008_firmware >= 4.20.0, < 4.20.17 cpe:2.3:o:tp-link:omada_sg2008_firmware:*:*:*:*:*:*:*:*
tp-link omada_sg2008_firmware >= 4.30.0, < 4.30.1 cpe:2.3:o:tp-link:omada_sg2008_firmware:*:*:*:*:*:*:*:*
tp-link omada_sg2008p_firmware >= 3.20.0, < 3.20.17 cpe:2.3:o:tp-link:omada_sg2008p_firmware:*:*:*:*:*:*:*:*
tp-link omada_sg2008p_firmware >= 3.30.0, < 3.30.1 cpe:2.3:o:tp-link:omada_sg2008p_firmware:*:*:*:*:*:*:*:*
tp-link omada_sg2016p_firmware >= 1.20.0, < 1.20.17 cpe:2.3:o:tp-link:omada_sg2016p_firmware:*:*:*:*:*:*:*:*
tp-link omada_sg2016p_firmware >= 1.30.0, < 1.30.1 cpe:2.3:o:tp-link:omada_sg2016p_firmware:*:*:*:*:*:*:*:*
tp-link omada_sg2210mp_firmware >= 4.20.0, < 4.20.18 cpe:2.3:o:tp-link:omada_sg2210mp_firmware:*:*:*:*:*:*:*:*
tp-link omada_sg2210mp_firmware >= 5.0.0, < 5.0.15 cpe:2.3:o:tp-link:omada_sg2210mp_firmware:*:*:*:*:*:*:*:*
tp-link omada_sg2210mp_firmware >= 5.20.0, < 5.20.1 cpe:2.3:o:tp-link:omada_sg2210mp_firmware:*:*:*:*:*:*:*:*
tp-link omada_sg2210p_firmware >= 5.20.0, < 5.20.18 cpe:2.3:o:tp-link:omada_sg2210p_firmware:*:*:*:*:*:*:*:*
tp-link omada_sg2210p_firmware >= 5.30.0, < 5.30.1 cpe:2.3:o:tp-link:omada_sg2210p_firmware:*:*:*:*:*:*:*:*
tp-link omada_sg2210xmp-m2_firmware >= 1.0.0, < 1.0.19 cpe:2.3:o:tp-link:omada_sg2210xmp-m2_firmware:*:*:*:*:*:*:*:*
tp-link omada_sg2218_firmware >= 1.20.0, < 1.20.17 cpe:2.3:o:tp-link:omada_sg2218_firmware:*:*:*:*:*:*:*:*
tp-link omada_sg2218_firmware >= 1.30.0, < 1.30.1 cpe:2.3:o:tp-link:omada_sg2218_firmware:*:*:*:*:*:*:*:*
tp-link omada_sg2218p_firmware >= 1.20.0, < 1.20.17 cpe:2.3:o:tp-link:omada_sg2218p_firmware:*:*:*:*:*:*:*:*
tp-link omada_sg2218p_firmware >= 2.0.0, < 2.0.14 cpe:2.3:o:tp-link:omada_sg2218p_firmware:*:*:*:*:*:*:*:*
tp-link omada_sg2218p_firmware >= 2.20.0, < 2.20.2 cpe:2.3:o:tp-link:omada_sg2218p_firmware:*:*:*:*:*:*:*:*
tp-link omada_sg2428lp_firmware >= 1.0.0, < 1.0.13 cpe:2.3:o:tp-link:omada_sg2428lp_firmware:*:*:*:*:*:*:*:*
tp-link omada_sg2428p_firmware >= 5.20.0, < 5.20.20 cpe:2.3:o:tp-link:omada_sg2428p_firmware:*:*:*:*:*:*:*:*
tp-link omada_sg2428p_firmware >= 5.30.0, < 5.30.16 cpe:2.3:o:tp-link:omada_sg2428p_firmware:*:*:*:*:*:*:*:*
tp-link omada_sg2452lp_firmware >= 1.0.0, < 1.0.13 cpe:2.3:o:tp-link:omada_sg2452lp_firmware:*:*:*:*:*:*:*:*
tp-link omada_sg3210_firmware >= 3.20.0, < 3.20.17 cpe:2.3:o:tp-link:omada_sg3210_firmware:*:*:*:*:*:*:*:*
tp-link omada_sg3210_firmware >= 3.30.0, < 3.30.1 cpe:2.3:o:tp-link:omada_sg3210_firmware:*:*:*:*:*:*:*:*
tp-link omada_sg3210xhp-m2_firmware >= 3.0.0, < 3.0.21 cpe:2.3:o:tp-link:omada_sg3210xhp-m2_firmware:*:*:*:*:*:*:*:*
tp-link omada_sg3210x-m2_firmware >= 1.20.0, < 1.20.1 cpe:2.3:o:tp-link:omada_sg3210x-m2_firmware:*:*:*:*:*:*:*:*
tp-link omada_sg3218xp-m2_firmware >= 1.0.0, < 1.0.19 cpe:2.3:o:tp-link:omada_sg3218xp-m2_firmware:*:*:*:*:*:*:*:*
tp-link omada_sg3428_firmware >= 2.30.0, < 2.30.16 cpe:2.3:o:tp-link:omada_sg3428_firmware:*:*:*:*:*:*:*:*
tp-link omada_sg3428_firmware >= 2.40.0, < 2.40.1 cpe:2.3:o:tp-link:omada_sg3428_firmware:*:*:*:*:*:*:*:*
tp-link omada_sg3428mp_firmware >= 6.20.0, < 6.20.20 cpe:2.3:o:tp-link:omada_sg3428mp_firmware:*:*:*:*:*:*:*:*
tp-link omada_sg3428mp_firmware >= 6.30.0, < 6.30.1 cpe:2.3:o:tp-link:omada_sg3428mp_firmware:*:*:*:*:*:*:*:*
tp-link omada_sg3428x_firmware >= 1.30.0, < 1.30.17 cpe:2.3:o:tp-link:omada_sg3428x_firmware:*:*:*:*:*:*:*:*
tp-link omada_sg3428x_firmware >= 1.40.0, < 1.40.1 cpe:2.3:o:tp-link:omada_sg3428x_firmware:*:*:*:*:*:*:*:*
tp-link omada_sg3428xf_firmware >= 1.20.0, < 1.20.16 cpe:2.3:o:tp-link:omada_sg3428xf_firmware:*:*:*:*:*:*:*:*
tp-link omada_sg3428xf_firmware >= 1.30.0, < 1.30.1 cpe:2.3:o:tp-link:omada_sg3428xf_firmware:*:*:*:*:*:*:*:*
tp-link omada_sg3428x-m2_firmware >= 1.20.0, < 1.20.18 cpe:2.3:o:tp-link:omada_sg3428x-m2_firmware:*:*:*:*:*:*:*:*
tp-link omada_sg3428xmp_firmware >= 3.20.0, < 3.20.21 cpe:2.3:o:tp-link:omada_sg3428xmp_firmware:*:*:*:*:*:*:*:*
tp-link omada_sg3428xmp_firmware >= 3.30.0, < 3.30.1 cpe:2.3:o:tp-link:omada_sg3428xmp_firmware:*:*:*:*:*:*:*:*
tp-link omada_sg3428xmpp_firmware >= 1.0.0, < 1.0.16 cpe:2.3:o:tp-link:omada_sg3428xmpp_firmware:*:*:*:*:*:*:*:*
tp-link omada_sg3428xmpp_firmware >= 1.20.0, < 1.20.1 cpe:2.3:o:tp-link:omada_sg3428xmpp_firmware:*:*:*:*:*:*:*:*
tp-link omada_sg3428xpp-m2_firmware >= 1.20.0, < 1.20.19 cpe:2.3:o:tp-link:omada_sg3428xpp-m2_firmware:*:*:*:*:*:*:*:*
tp-link omada_sg3452_firmware >= 1.20.0, < 1.20.17 cpe:2.3:o:tp-link:omada_sg3452_firmware:*:*:*:*:*:*:*:*
tp-link omada_sg3452_firmware >= 1.30.0, < 1.30.1 cpe:2.3:o:tp-link:omada_sg3452_firmware:*:*:*:*:*:*:*:*
tp-link omada_sg3452p_firmware >= 3.30.0, < 3.30.17 cpe:2.3:o:tp-link:omada_sg3452p_firmware:*:*:*:*:*:*:*:*
tp-link omada_sg3452p_firmware >= 3.40.0, < 3.40.1 cpe:2.3:o:tp-link:omada_sg3452p_firmware:*:*:*:*:*:*:*:*
tp-link omada_sg3452x_firmware >= 1.20.0, < 1.20.18 cpe:2.3:o:tp-link:omada_sg3452x_firmware:*:*:*:*:*:*:*:*
tp-link omada_sg3452x_firmware >= 1.30.0, < 1.30.1 cpe:2.3:o:tp-link:omada_sg3452x_firmware:*:*:*:*:*:*:*:*
tp-link omada_sg3452xmpp_firmware >= 1.0.0, < 1.0.15 cpe:2.3:o:tp-link:omada_sg3452xmpp_firmware:*:*:*:*:*:*:*:*
tp-link omada_sg3452xp_firmware >= 2.20.0, < 2.20.20 cpe:2.3:o:tp-link:omada_sg3452xp_firmware:*:*:*:*:*:*:*:*
tp-link omada_sg3452xp_firmware >= 2.30.0, < 2.30.1 cpe:2.3:o:tp-link:omada_sg3452xp_firmware:*:*:*:*:*:*:*:*
tp-link omada_sl2428p_firmware >= 6.20.0, < 6.20.18 cpe:2.3:o:tp-link:omada_sl2428p_firmware:*:*:*:*:*:*:*:*
tp-link omada_sx3008f_firmware >= 1.20.0, < 1.20.12 cpe:2.3:o:tp-link:omada_sx3008f_firmware:*:*:*:*:*:*:*:*
tp-link omada_sx3016f_firmware >= 1.20.0, < 1.20.16 cpe:2.3:o:tp-link:omada_sx3016f_firmware:*:*:*:*:*:*:*:*
tp-link omada_sx3016f_firmware >= 1.30.0, < 1.30.1 cpe:2.3:o:tp-link:omada_sx3016f_firmware:*:*:*:*:*:*:*:*
tp-link omada_sx3032f_firmware >= 1.0.0, < 1.0.15 cpe:2.3:o:tp-link:omada_sx3032f_firmware:*:*:*:*:*:*:*:*
tp-link omada_sx3206hpp_firmware >= 1.20.0, < 1.20.12 cpe:2.3:o:tp-link:omada_sx3206hpp_firmware:*:*:*:*:*:*:*:*
tp-link omada_sx3832_firmware >= 1.0.0, < 1.0.12 cpe:2.3:o:tp-link:omada_sx3832_firmware:*:*:*:*:*:*:*:*
tp-link omada_sx3832mpp_firmware >= 1.0.0, < 1.0.11 cpe:2.3:o:tp-link:omada_sx3832mpp_firmware:*:*:*:*:*:*:*:*
tp-link omada_tl-sg2428p_firmware >= 4.0.0, < 4.0.26 cpe:2.3:o:tp-link:omada_tl-sg2428p_firmware:*:*:*:*:*:*:*:*
tp-link omada_tl-sg3428mp_firmware >= 5.0.0, < 5.0.25 cpe:2.3:o:tp-link:omada_tl-sg3428mp_firmware:*:*:*:*:*:*:*:*
tp-link omada_tl-sg3452p_firmware >= 3.0.0, < 3.0.22 cpe:2.3:o:tp-link:omada_tl-sg3452p_firmware:*:*:*:*:*:*:*:*

References for CVE-2026-1668

cvelogic Threat Intelligence