How severe is CVE-2023-38933?

CVE-2023-38933 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-2023-38933 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (49th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-38933?

CVE-2023-38933 primarily affects Tenda Ac10 Firmware. In total, 9 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2023-38933?

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-2023-38933 published?

CVE-2023-38933 was published on 2023-08-07 and last updated on 2026-06-17.

CVE-2023-38933

CVE-2023-38933 is a critical-severity vulnerability in Tenda Ac10 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-787.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
EPSS exploit prediction: 1% (49th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-787
Affected product: Tenda Ac10 Firmware
Published: 2023-08-07
Last modified: 2026-06-17

Description

Tenda AC6 V2.0 V15.03.06.23, AC7 V1.0 V15.03.06.44, F1203 V2.0.1.6, AC5 V1.0 V15.03.06.28, FH1203 V2.0.1.6 and AC9 V3.0 V15.03.06.42_multi, and FH1205 V2.0.0.7(775) were discovered to contain a stack overflow via the deviceId parameter in the formSetClientState function.

Frequently asked questions

What is CVE-2023-38933?: Tenda AC6 V2.0 V15.03.06.23, AC7 V1.0 V15.03.06.44, F1203 V2.0.1.6, AC5 V1.0 V15.03.06.28, FH1203 V2.0.1.6 and AC9 V3.0 V15.03.06.42_multi, and FH1205 V2.0.0.7(775) were discovered to contain a stack overflow via the deviceId parameter in the formSetClientState function.
How severe is CVE-2023-38933?: CVE-2023-38933 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-2023-38933 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (49th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-38933?: CVE-2023-38933 primarily affects Tenda Ac10 Firmware. In total, 9 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
How do I fix CVE-2023-38933?: 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-2023-38933 published?: CVE-2023-38933 was published on 2023-08-07 and last updated on 2026-06-17.

References

https://github.com/FirmRec/IoT-Vulns/blob/main/tenda/formSetClientState/README.md

Affected products (9)

cpe:2.3:o:tenda:ac10_firmware:15.03.06.23:*:*:*:*:*:*:*
cpe:2.3:o:tenda:ac1206_firmware:15.03.06.23:*:*:*:*:*:*:*
cpe:2.3:o:tenda:ac6_firmware:15.03.06.23:*:*:*:*:*:*:*
cpe:2.3:o:tenda:ac7_firmware:15.03.06.44:*:*:*:*:*:*:*
cpe:2.3:o:tenda:f1203_firmware:2.0.1.6:*:*:*:*:*:*:*
cpe:2.3:o:tenda:ac5_firmware:15.03.06.28:*:*:*:*:*:*:*
cpe:2.3:o:tenda:fh1203_firmware:2.0.1.6:*:*:*:*:*:*:*
cpe:2.3:o:tenda:fh1205_firmware:2.0.0.7\(775\):*:*:*:*:*:*:*
cpe:2.3:o:tenda:ac9_firmware:15.03.06.42_multi:*:*:*:*:*:*:*

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