CVE-2023-40799
CVE-2023-40799 is a critical-severity vulnerability in Tenda Ac23 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% (51st percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-787
- Affected product: Tenda Ac23 Firmware
- Published:
- Last modified:
Description
Tenda AC23 Vv16.03.07.45_cn is vulnerable to Buffer Overflow via sub_450A4C function.
Frequently asked questions
- What is CVE-2023-40799?
- Tenda AC23 Vv16.03.07.45_cn is vulnerable to Buffer Overflow via sub_450A4C function.
- How severe is CVE-2023-40799?
- CVE-2023-40799 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-2023-40799 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (51st percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2023-40799?
- CVE-2023-40799 affects Tenda Ac23 Firmware. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2023-40799?
- 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-2023-40799 published?
- CVE-2023-40799 was published on 2023-08-25 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:o:tenda:ac23_firmware:16.03.07.45_cn:*:*:*:*:*:*:*
More vulnerabilities in Tenda Ac23 Firmware
- CVE-2025-9605 — Critical (CVSS 9.8): A security vulnerability has been detected in Tenda AC21 and AC23 16.03.08.16. Affected is the function…
- CVE-2022-43108 — Critical (CVSS 9.8): Tenda AC23 V16.03.07.45_cn was discovered to contain a stack overflow via the firewallEn parameter in the…
- CVE-2022-43107 — Critical (CVSS 9.8): Tenda AC23 V16.03.07.45_cn was discovered to contain a stack overflow via the time parameter in the…
- CVE-2022-43106 — Critical (CVSS 9.8): Tenda AC23 V16.03.07.45_cn was discovered to contain a stack overflow via the schedStartTime parameter in the…
- CVE-2022-43105 — Critical (CVSS 9.8): Tenda AC23 V16.03.07.45_cn was discovered to contain a stack overflow via the shareSpeed parameter in the…
- CVE-2022-43104 — Critical (CVSS 9.8): Tenda AC23 V16.03.07.45_cn was discovered to contain a stack overflow via the wpapsk_crypto parameter in the…
All CVEs affecting Tenda Ac23 Firmware →
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