CVE-2021-27773: hcl software sametime
CVSS: 4.3v3.1MediumModified
Published 12-05-2022Last modified 16-09-2024
Vulnerability summary
CVE-2021-27773 is a medium (CVSS 4.3) vulnerability in hcl software sametime. EPSS estimates a 0.47% chance of exploitation in the next 30 days, higher than 39.2% of scored vulnerabilities.
CVSS score
4.3/10
010
Medium · v3.1 (NVD)EPSS score
0.47%
0%100%
Low · +0.01 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded
Timeline
- 12-05-2022PublishedVulnerability first disclosed.
- 16-09-2024Last modifiedVulnerability information updated.
Description
This vulnerability allows users to execute a clickjacking attack in the meeting's chat.
CVSS metrics
3 scores · 2 sources · 2 versionsMedium 4.3Preferred score · NVD (NIST)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:NSources2 sources · 4.2–4.3
- CVE.orgCNA4.2MediumCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:NDiffers
Medium 4.3Preferred score · NVD (NIST)
AV:N/AC:M/Au:N/C:N/I:P/A:NSourcesSingle source
EPSS trend
Probability
0.47%
Chance of exploitation in the next 30 days
Percentile
39%
Versus all other CVEs
30-day change
+0.01 pp
From 0.46% on 19-09-2026
19-09-202619-10-2026
EPSS score0.47%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root cause- CWE-451User Interface (UI) Misrepresentation of Critical InformationThe user interface (UI) does not properly represent critical information to the user, allowing the information - or its source - to be obscured or spoofed. This is often a component in phishing attacks.
- CWE-1021Improper Restriction of Rendered UI Layers or FramesThe web application does not restrict or incorrectly restricts frame objects or UI layers that belong to another application or domain.
Affected systems
2 vendors · 2 products