CVE-2023-5748

CVE-2023-5748 is a low-severity vulnerability in Synology Ssl Vpn Client with a CVSS 3.x base score of 3.3. 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

Description

Buffer copy without checking size of input ('Classic Buffer Overflow') vulnerability in cgi component in Synology SSL VPN Client before 1.4.7-0687 allows local users to conduct denial-of-service attacks via unspecified vectors.

Frequently asked questions

What is CVE-2023-5748?
Buffer copy without checking size of input ('Classic Buffer Overflow') vulnerability in cgi component in Synology SSL VPN Client before 1.4.7-0687 allows local users to conduct denial-of-service attacks via unspecified vectors.
How severe is CVE-2023-5748?
CVE-2023-5748 has a CVSS 3.x base score of 3.3, rated low severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability low.
Is CVE-2023-5748 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (9th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-5748?
CVE-2023-5748 affects Synology Ssl Vpn Client. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-5748?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-5748 published?
CVE-2023-5748 was published on 2023-11-07 and last updated on 2026-06-17.

References

Affected products (1)

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