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CVE-2021-27760: hcl software hcl notes Improper Input Validation

CVSS: 6.0v2.0MediumModified
Published 06-05-2022Last modified 17-09-2024
Open JSON

Vulnerability summary

CVE-2021-27760 is a medium (CVSS 6.0) Improper Input Validation vulnerability in hcl software hcl notes. EPSS estimates a 0.73% chance of exploitation in the next 30 days, higher than 53.2% of scored vulnerabilities.

Overall risk
24/100
0100
Low · default modelHow is this calculated?
CVSS score
6.0/10
010
Medium · v2.0 (NVD)
EPSS score
0.73%
0%100%
Low · +0.03 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 06-05-2022
    PublishedVulnerability first disclosed.
  2. 17-09-2024
    Last modifiedVulnerability information updated.

Description

An issue was discovered in the Sametime chat feature in the Notes 11.0 - 11.0.1 FP4 clients. An authenticated Sametime chat user could cause Remote Code Execution on another chat client by sending a specially formatted message through chat containing Javascript code.

CVSS metrics

3 scores · 2 sources · 2 versions

EPSS trend

Probability

0.73%

Chance of exploitation in the next 30 days

Percentile

53%

Versus all other CVEs

30-day change

+0.03 pp

From 0.70% on 18-09-2026

18-09-202618-10-2026
EPSS score
0.73%

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

Hcl software1 product
Hcltech1 product
  • hcl_inotes11.0.0 | 11.0.1 | 11.0.1:fixpack1 | 11.0.1:fixpack2 | 11.0.1:fixpack3 | 11.0.1:fixpack4

2 vendors · 2 products

References

1 links