CVE-2020-4102: hcltech notes Classic Buffer Overflow
CVSS: 7.2v2.0HighModified
Published 02-12-2020Last modified 04-08-2024
Vulnerability summary
CVE-2020-4102 is a high (CVSS 7.2) Classic Buffer Overflow vulnerability in hcltech notes. EPSS estimates a 0.33% chance of exploitation in the next 30 days, higher than 23.9% of scored vulnerabilities.
CVSS score
7.2/10
010
High · v2.0 (NVD)EPSS score
0.33%
0%100%
Low · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 02-12-2020PublishedVulnerability first disclosed.
- 04-08-2024Last modifiedVulnerability information updated.
Description
HCL Notes is susceptible to a Buffer Overflow vulnerability in DXL due to improper validation of user input. A successful exploit could enable an attacker to crash Notes or execute attacker-controlled code on the client system.
CVSS metrics
2 scores · 1 source · 2 versionsMedium 6.7Preferred score · NVD (NIST)
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:HSourcesSingle source
High 7.2Preferred score · NVD (NIST)
AV:L/AC:L/Au:N/C:C/I:C/A:CSourcesSingle source
EPSS trend
Probability
0.33%
Chance of exploitation in the next 30 days
Percentile
24%
Versus all other CVEs
30-day change
0.00 pp
From 0.33% on 18-09-2026
18-09-202618-10-2026
EPSS score0.33%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Hcltech1 product
- notes≥ 9.0.0, ≤ 9.0.1 | 10.0 | 10.0.1 | 10.0.1:fp1 | 10.0.1:fp2 | 10.0.1:fp3 | 10.0.1:fp4 | 10.0.1:fp5 | 11.0 | 11.0.1
1 vendor · 1 product