What is CVE-2026-1668?

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. 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.

How severe is CVE-2026-1668?

CVE-2026-1668 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2026-1668 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (58th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-1668?

CVE-2026-1668 primarily affects Tp-link Omada Sg2005p-pd Firmware. In total, 39 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2026-1668?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

Does CVE-2026-1668 have an EU (EUVD) identifier?

Yes. CVE-2026-1668 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-12049.

When was CVE-2026-1668 published?

CVE-2026-1668 was published on 2026-03-13 and last updated on 2026-06-17.

CVE-2026-1668

CVE-2026-1668 is a critical-severity vulnerability in Tp-link Omada Sg2005p-pd Firmware with a CVSS 3.x base score of 9.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-787.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v4: 7.7
EPSS exploit prediction: 1% (58th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-12049
Weakness: CWE-787
Affected product: Tp-link Omada Sg2005p-pd Firmware
Published: 2026-03-13
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is CVE-2026-1668?: 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.
How severe is CVE-2026-1668?: CVE-2026-1668 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2026-1668 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (58th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-1668?: CVE-2026-1668 primarily affects Tp-link Omada Sg2005p-pd Firmware. In total, 39 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2026-1668?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
Does CVE-2026-1668 have an EU (EUVD) identifier?: Yes. CVE-2026-1668 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-12049.
When was CVE-2026-1668 published?: CVE-2026-1668 was published on 2026-03-13 and last updated on 2026-06-17.

References

Affected products (39)

cpe:2.3:o:tp-link:omada_sg2005p-pd_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:tp-link:omada_sg2008_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:tp-link:omada_sg2008p_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:tp-link:omada_sg2016p_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:tp-link:omada_sg2210mp_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:tp-link:omada_sg2210p_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:tp-link:omada_sg2210xmp-m2_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:tp-link:omada_sg2218_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:tp-link:omada_sg2218p_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:tp-link:omada_sg2428lp_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:tp-link:omada_sg2428p_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:tp-link:omada_sg2452lp_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:tp-link:omada_sg3210_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:tp-link:omada_sg3210xhp-m2_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:tp-link:omada_sg3210x-m2_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:tp-link:omada_sg3218xp-m2_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:tp-link:omada_sg3428_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:tp-link:omada_sg3428mp_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:tp-link:omada_sg3428x_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:tp-link:omada_sg3428xf_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:tp-link:omada_sg3428x-m2_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:tp-link:omada_sg3428xmp_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:tp-link:omada_sg3428xmpp_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:tp-link:omada_sg3428xpp-m2_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:tp-link:omada_sg3452_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:tp-link:omada_sg3452p_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:tp-link:omada_sg3452x_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:tp-link:omada_sg3452xmpp_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:tp-link:omada_sg3452xp_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:tp-link:omada_sl2428p_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:tp-link:omada_sx3008f_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:tp-link:omada_sx3016f_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:tp-link:omada_sx3032f_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:tp-link:omada_sx3206hpp_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:tp-link:omada_sx3832_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:tp-link:omada_sx3832mpp_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:tp-link:omada_tl-sg2428p_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:tp-link:omada_tl-sg3428mp_firmware:*:*:*:*:*:*:*:*
cpe:2.3:o:tp-link:omada_tl-sg3452p_firmware:*:*:*:*:*:*:*:*

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