CVE-2023-5748: synology ssl_vpn_client Classic Buffer Overflow
CVSS: 5.5v3.1MediumModified
Published 24-10-2023Last modified 17-09-2024
Vulnerability summary
CVE-2023-5748 is a medium (CVSS 5.5) Classic Buffer Overflow vulnerability in synology ssl_vpn_client. EPSS estimates a 0.19% chance of exploitation in the next 30 days, higher than 8.5% of scored vulnerabilities.
CVSS score
5.5/10
010
Medium · v3.1 (NVD)EPSS score
0.19%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 24-10-2023PublishedVulnerability first disclosed.
- 17-09-2024Last modifiedVulnerability information updated.
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.
CVSS metrics
2 scores · 2 sources · 1 versionMedium 5.5Preferred score · NVD (NIST)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HSources2 sources · 3.3–5.5
- CVE.orgCNA3.3LowCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:LDiffers
EPSS trend
Probability
0.19%
Chance of exploitation in the next 30 days
Percentile
9%
Versus all other CVEs
30-day change
0.00 pp
From 0.19% on 19-09-2026
19-09-202619-10-2026
EPSS score0.19%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Synology2 products
- ssl_vpn_client< 1.4.7-0687
- synology ssl vpn client< 1.4.7-0687
1 vendor · 2 products