How severe is CVE-2023-35967?

CVE-2023-35967 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-2023-35967 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-2023-35967?

CVE-2023-35967 affects Yifanwireless Yf325 Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-35967?

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-2023-35967 published?

CVE-2023-35967 was published on 2023-10-11 and last updated on 2026-06-17.

CVE-2023-35967

CVE-2023-35967 is a critical-severity vulnerability in Yifanwireless Yf325 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: Yifanwireless Yf325 Firmware
Published: 2023-10-11
Last modified: 2026-06-17

Description

Two heap-based buffer overflow vulnerabilities exist in the gwcfg_cgi_set_manage_post_data functionality of Yifan YF325 v1.0_20221108. A specially crafted network request can lead to a heap buffer overflow. An attacker can send a network request to trigger these vulnerabilities.This integer overflow result is used as argument for the malloc function.

Frequently asked questions

What is CVE-2023-35967?: Two heap-based buffer overflow vulnerabilities exist in the gwcfg_cgi_set_manage_post_data functionality of Yifan YF325 v1.0_20221108. A specially crafted network request can lead to a heap buffer overflow. An attacker can send a network request to trigger these vulnerabilities.This integer overflow result is used as argument for the malloc function.
How severe is CVE-2023-35967?: CVE-2023-35967 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-2023-35967 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-2023-35967?: CVE-2023-35967 affects Yifanwireless Yf325 Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-35967?: 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-2023-35967 published?: CVE-2023-35967 was published on 2023-10-11 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:yifanwireless:yf325_firmware:1.0_20221108:*:*:*:*:*:*:*

More vulnerabilities in Yifanwireless Yf325 Firmware

CVE-2023-35968 — Critical (CVSS 9.8): Two heap-based buffer overflow vulnerabilities exist in the gwcfg_cgi_set_manage_post_data functionality of Yifan YF325…
CVE-2023-35966 — Critical (CVSS 9.8): Two heap-based buffer overflow vulnerabilities exist in the httpd manage_post functionality of Yifan YF325…
CVE-2023-35965 — Critical (CVSS 9.8): Two heap-based buffer overflow vulnerabilities exist in the httpd manage_post functionality of Yifan YF325…
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CVE-2023-34346 — Critical (CVSS 9.8): A stack-based buffer overflow vulnerability exists in the httpd gwcfg.cgi get functionality of Yifan YF325…

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