How severe is CVE-2018-12640?

CVE-2018-12640 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-2018-12640 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (73rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2018-12640?

CVE-2018-12640 affects Insteon 2864-222 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2018-12640?

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-2018-12640 published?

CVE-2018-12640 was published on 2018-06-23 and last updated on 2026-06-17.

CVE-2018-12640

CVE-2018-12640 is a critical-severity vulnerability in Insteon 2864-222 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-119.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
CVSS v2: 7.5
EPSS exploit prediction: 2% (73rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-119
Affected product: Insteon 2864-222 Firmware
Published: 2018-06-23
Last modified: 2026-06-17

Description

The webService binary on Insteon HD IP Camera White 2864-222 devices has a Buffer Overflow via a crafted pid, pwd, or usr key in a GET request on port 34100.

Frequently asked questions

What is CVE-2018-12640?: The webService binary on Insteon HD IP Camera White 2864-222 devices has a Buffer Overflow via a crafted pid, pwd, or usr key in a GET request on port 34100.
How severe is CVE-2018-12640?: CVE-2018-12640 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-2018-12640 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (73rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2018-12640?: CVE-2018-12640 affects Insteon 2864-222 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2018-12640?: 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-2018-12640 published?: CVE-2018-12640 was published on 2018-06-23 and last updated on 2026-06-17.

References

https://github.com/badnack/Insteon_2864-222

Affected products (1)

cpe:2.3:o:insteon:2864-222_firmware:-:*:*:*:*:*:*:*

More vulnerabilities in Insteon 2864-222 Firmware

CVE-2018-11560 — Critical (CVSS 9.8): The webService binary on Insteon HD IP Camera White 2864-222 devices has a stack-based Buffer Overflow leading to…

All CVEs affecting Insteon 2864-222 Firmware →

Other CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer) vulnerabilities

CVE-2026-2778 — Critical (CVSS 10.0): Sandbox escape due to incorrect boundary conditions in the DOM: Core & HTML component. This vulnerability was fixed in…
CVE-2026-2776 — Critical (CVSS 10.0): Sandbox escape due to incorrect boundary conditions in the Telemetry component in External Software. This vulnerability…
CVE-2025-1866 — Critical (CVSS 10.0): Improper Restriction of Operations within the Bounds of a Memory Buffer vulnerability in warmcat libwebsockets allows…
CVE-2022-27625 — Critical (CVSS 10.0): A vulnerability regarding improper restriction of operations within the bounds of a memory buffer is found in the…
CVE-2022-27624 — Critical (CVSS 10.0): A vulnerability regarding improper restriction of operations within the bounds of a memory buffer is found in the…
CVE-2020-11896 — Critical (CVSS 10.0): The Treck TCP/IP stack before 6.0.1.66 allows Remote Code Execution, related to IPv4 tunneling.

Browse all CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer) vulnerabilities →