6.8

CVE-2020-4097: hcltech notes Classic Buffer Overflow

CVSS: 6.8v3.1MediumModified
Published 05-11-2020Last modified 04-08-2024
Open JSON

Vulnerability summary

CVE-2020-4097 is a medium (CVSS 6.8) Classic Buffer Overflow vulnerability in hcltech notes. EPSS estimates a 0.32% chance of exploitation in the next 30 days, higher than 23.1% of scored vulnerabilities.

Overall risk
27/100
0100
Medium · default modelHow is this calculated?
CVSS score
6.8/10
010
Medium · v3.1 (NVD)
EPSS score
0.32%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 05-11-2020
    PublishedVulnerability first disclosed.
  2. 04-08-2024
    Last modifiedVulnerability information updated.

Description

In HCL Notes version 9 previous to release 9.0.1 FixPack 10 Interim Fix 8, version 10 previous to release 10.0.1 FixPack 6 and version 11 previous to 11.0.1 FixPack 1, a vulnerability in the input parameter handling of the Notes Client could potentially be exploited by an attacker resulting in a buffer overflow. This could enable an attacker to crash HCL Notes or execute attacker-controlled code on the client.

CVSS metrics

2 scores · 1 source · 2 versions

EPSS trend

Probability

0.32%

Chance of exploitation in the next 30 days

Percentile

23%

Versus all other CVEs

30-day change

0.00 pp

From 0.32% on 18-09-2026

18-09-202618-10-2026
EPSS score
0.32%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Hcltech1 product
  • notes≥ 9.0, ≤ 9.0.1 | ≥ 11.0, ≤ 11.0.1 | 9.0.1:fp10 | 9.0.1:fp10if1 | 9.0.1:fp10if2 | 9.0.1:fp10if3 | 9.0.1:fp10if4 | 9.0.1:fp10if5 | 9.0.1:fp10if6 | 9.0.1:fp10if7 | 9.0.1:fp1if1 | 9.0.1:fp1if2 | 9.0.1:fp2if1 | 9.0.1:fp2if2 | 9.0.1:fp2if3 | 9.0.1:fp2if4 | 9.0.1:fp3if1 | 9.0.1:fp3if2 | 9.0.1:fp3if3 | 9.0.1:fp3if4 | 9.0.1:fp4if1 | 9.0.1:fp4if2 | 9.0.1:fp5if1 | 9.0.1:fp5if2 | 9.0.1:fp5if3 | 9.0.1:fp7if1 | 9.0.1:fp7if2 | 9.0.1:fp8if1 | 9.0.1:fp9if1 | 9.0.1:fp9if2 | 10.0.0:fp1 | 10.0.0:fp2 | 10.0.0:fp3 | 10.0.0:fp4 | 10.0.0:fp5 | 10.0.1:fp1 | 10.0.1:fp2 | 10.0.1:fp3 | 10.0.1:fp4 | 10.0.1:fp5

1 vendor · 1 product

References

1 links