CVE-2023-40942
CVE-2023-40942 is a critical-severity vulnerability in Tendacn Ac9 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: Tendacn Ac9 Firmware
- Published:
- Last modified:
Description
Tenda AC9 V3.0BR_V15.03.06.42_multi_TD01 was discovered stack overflow via parameter 'firewall_value' at url /goform/SetFirewallCfg.
Frequently asked questions
- What is CVE-2023-40942?
- Tenda AC9 V3.0BR_V15.03.06.42_multi_TD01 was discovered stack overflow via parameter 'firewall_value' at url /goform/SetFirewallCfg.
- How severe is CVE-2023-40942?
- CVE-2023-40942 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-2023-40942 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-2023-40942?
- CVE-2023-40942 affects Tendacn Ac9 Firmware. See the affected-products list for the exact vulnerable versions.
- How do I fix CVE-2023-40942?
- 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-2023-40942 published?
- CVE-2023-40942 was published on 2023-09-07 and last updated on 2026-06-17.
References
Affected products (1)
- cpe:2.3:o:tendacn:ac9_firmware:15.03.06.42_multi_td0:*:*:*:*:*:*:*
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