How severe is CVE-2022-40055?

CVE-2022-40055 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-2022-40055 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (52nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-40055?

CVE-2022-40055 affects Gxgroup Gpon Ont Titanium 2122a Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2022-40055?

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-2022-40055 published?

CVE-2022-40055 was published on 2022-10-17 and last updated on 2026-07-05.

CVE-2022-40055

CVE-2022-40055 is a critical-severity vulnerability in Gxgroup Gpon Ont Titanium 2122a 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-307.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
EPSS exploit prediction: 1% (52nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-307
Affected product: Gxgroup Gpon Ont Titanium 2122a Firmware
Published: 2022-10-17
Last modified: 2026-07-05

Description

An issue in GX Group GPON ONT Titanium 2122A T2122-V1.26EXL allows attackers to escalate privileges via a brute force attack at the login page.

Frequently asked questions

What is CVE-2022-40055?: An issue in GX Group GPON ONT Titanium 2122A T2122-V1.26EXL allows attackers to escalate privileges via a brute force attack at the login page.
How severe is CVE-2022-40055?: CVE-2022-40055 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-2022-40055 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (52nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-40055?: CVE-2022-40055 affects Gxgroup Gpon Ont Titanium 2122a Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2022-40055?: 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-2022-40055 published?: CVE-2022-40055 was published on 2022-10-17 and last updated on 2026-07-05.

References

Affected products (1)

cpe:2.3:o:gxgroup:gpon_ont_titanium_2122a_firmware:t2122-v1.26exl:*:*:*:*:*:*:*

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