How severe is CVE-2022-43294?

CVE-2022-43294 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-2022-43294 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (55th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2022-43294?

CVE-2022-43294 affects Tasmota Project Tasmota. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2022-43294?

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-2022-43294 published?

CVE-2022-43294 was published on 2022-11-14 and last updated on 2026-06-17.

CVE-2022-43294

CVE-2022-43294 is a critical-severity vulnerability in Tasmota Project Tasmota 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)
EPSS exploit prediction: 1% (55th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-787
Affected product: Tasmota Project Tasmota
Published: 2022-11-14
Last modified: 2026-06-17

Description

Tasmota before commit 066878da4d4762a9b6cb169fdf353e804d735cfd was discovered to contain a stack overflow via the ClientPortPtr parameter at lib/libesp32/rtsp/CRtspSession.cpp.

Frequently asked questions

What is CVE-2022-43294?: Tasmota before commit 066878da4d4762a9b6cb169fdf353e804d735cfd was discovered to contain a stack overflow via the ClientPortPtr parameter at lib/libesp32/rtsp/CRtspSession.cpp.
How severe is CVE-2022-43294?: CVE-2022-43294 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-2022-43294 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (55th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-43294?: CVE-2022-43294 affects Tasmota Project Tasmota. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2022-43294?: 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-2022-43294 published?: CVE-2022-43294 was published on 2022-11-14 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:tasmota_project:tasmota:*:*:*:*:*:*:*:*

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