How severe is CVE-2022-40110?

CVE-2022-40110 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2022-40110 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (50th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-40110?

CVE-2022-40110 affects Totolink A3002r Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2022-40110?

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

When was CVE-2022-40110 published?

CVE-2022-40110 was published on 2022-09-06 and last updated on 2026-06-17.

CVE-2022-40110

CVE-2022-40110 is a high-severity vulnerability in Totolink A3002r Firmware with a CVSS 3.x base score of 7.5. 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-120.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 1% (50th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-120
Affected product: Totolink A3002r Firmware
Published: 2022-09-06
Last modified: 2026-06-17

Description

TOTOLINK A3002R TOTOLINK-A3002R-He-V1.1.1-B20200824.0128 is vulnerable to Buffer Overflow via /bin/boa.

Frequently asked questions

What is CVE-2022-40110?: TOTOLINK A3002R TOTOLINK-A3002R-He-V1.1.1-B20200824.0128 is vulnerable to Buffer Overflow via /bin/boa.
How severe is CVE-2022-40110?: CVE-2022-40110 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2022-40110 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (50th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-40110?: CVE-2022-40110 affects Totolink A3002r Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2022-40110?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2022-40110 published?: CVE-2022-40110 was published on 2022-09-06 and last updated on 2026-06-17.

References

https://github.com/1759134370/iot/blob/main/TOTOLINK/A3002R/2.md

Affected products (1)

cpe:2.3:o:totolink:a3002r_firmware:1.1.1-b20200824.0128:*:*:*:*:*:*:*

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