How severe is CVE-2023-39673?

CVE-2023-39673 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-2023-39673 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (46th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-39673?

CVE-2023-39673 affects Tenda Ac15 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-39673?

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-2023-39673 published?

CVE-2023-39673 was published on 2023-08-18 and last updated on 2026-06-17.

CVE-2023-39673

CVE-2023-39673 is a critical-severity vulnerability in Tenda Ac15 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-120.

Key facts

Severity: Critical (CVSS 3.x base score 9.8)
EPSS exploit prediction: 1% (46th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-120
Affected product: Tenda Ac15 Firmware
Published: 2023-08-18
Last modified: 2026-06-17

Description

Tenda AC15 V1.0BR_V15.03.05.18_multi_TD01 was discovered to contain a buffer overflow via the function FUN_00010e34().

Frequently asked questions

What is CVE-2023-39673?: Tenda AC15 V1.0BR_V15.03.05.18_multi_TD01 was discovered to contain a buffer overflow via the function FUN_00010e34().
How severe is CVE-2023-39673?: CVE-2023-39673 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-2023-39673 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (46th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-39673?: CVE-2023-39673 affects Tenda Ac15 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-39673?: 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-2023-39673 published?: CVE-2023-39673 was published on 2023-08-18 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:tenda:ac15_firmware:15.03.05.18:*:*:*:*:*:*:*

More vulnerabilities in Tenda Ac15 Firmware

CVE-2026-24103 — Critical (CVSS 9.8): A buffer overflow vulnerability was discovered in goform/formSetMacFilterCfg in Tenda AC15V1.0 V15.03.05.18_multi.
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CVE-2025-25632 — Critical (CVSS 9.8): Tenda AC15 v15.03.05.19 is vulnerable to Command Injection via the handler function in /goform/telnet.

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