How severe is CVE-2022-32449?

CVE-2022-32449 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-2022-32449 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 18% (97th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-32449?

CVE-2022-32449 affects Totolink Ex300 V2 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2022-32449?

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.

When was CVE-2022-32449 published?

CVE-2022-32449 was published on 2022-07-07 and last updated on 2026-06-17.

CVE-2022-32449

CVE-2022-32449 is a critical-severity vulnerability in Totolink Ex300 V2 Firmware with a CVSS 3.x base score of 9.8. Its EPSS exploit-prediction score of 18% places it in the 97th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-77.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 10.0
EPSS exploit prediction: 18% (97th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-77
Affected product: Totolink Ex300 V2 Firmware
Published: 2022-07-07
Last modified: 2026-06-17

Description

TOTOLINK EX300_V2 V4.0.3c.7484 was discovered to contain a command injection vulnerability via the langType parameter in the setLanguageCfg function. This vulnerability is exploitable via a crafted MQTT data packet.

Frequently asked questions

What is CVE-2022-32449?: TOTOLINK EX300_V2 V4.0.3c.7484 was discovered to contain a command injection vulnerability via the langType parameter in the setLanguageCfg function. This vulnerability is exploitable via a crafted MQTT data packet.
How severe is CVE-2022-32449?: CVE-2022-32449 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-2022-32449 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 18% (97th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-32449?: CVE-2022-32449 affects Totolink Ex300 V2 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2022-32449?: 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.
When was CVE-2022-32449 published?: CVE-2022-32449 was published on 2022-07-07 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:totolink:ex300_v2_firmware:4.0.3c.7484:*:*:*:*:*:*:*

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