This page lists publicly disclosed CVE vulnerabilities affecting hcltech sametime (linked via NVD CPE). Each row includes severity scores, summaries, and publication dates to help identify and analyze security issues.
| CVE | Summary | Source | Max CVSS | EPSS % | Published | Updated |
|---|---|---|---|---|---|---|
| CVE-2025-31966 | HCL Sametime is vulnerable to broken server-side validation. While the application performs client-side input checks, these are not enforced by the web server. An attacker can bypass these restrictions by sending manipulated HTTP requests directly to the server. | [email protected] | 2.7 | 0.07% | 2026-03-17 | 2026-03-31 |
| CVE-2026-21791 | HCL Sametime for Android is impacted by a sensitive information disclosure. Hostnames information is written in application logs and certain URL | [email protected] | 3.3 | 0.01% | 2026-03-10 | 2026-05-07 |
| CVE-2026-21786 | HCL Sametime for iOS is impacted by a sensitive information disclosure. Hostnames information is written in application logs and certain URLs. | [email protected] | 3.3 | 0.01% | 2026-03-05 | 2026-03-09 |
| CVE-2023-50355 | HCL Sametime is impacted by the error messages containing sensitive information. An attacker can use this information to launch another, more focused attack. | [email protected] | 3.6 | 0.32% | 2024-10-23 | 2024-10-31 |
| CVE-2024-30124 | HCL Sametime is impacted by insecure services in-use on the UIM client by default. An unused legacy REST service was enabled by default using the HTTP protocol. An attacker could potentially use this service endpoint maliciously. | [email protected] | 4.0 | 0.08% | 2024-10-23 | 2026-01-08 |
| CVE-2024-30122 | HCL Sametime is impacted by misconfigured security related HTTP headers. It was identified that some HTTP headers were missing on web service responses. This will lead to less secure browser default treatment for the policies controlled by these headers. | [email protected] | 5.8 | 0.16% | 2024-10-23 | 2024-11-25 |
| CVE-2023-37540 | Sametime Connect desktop chat client includes, but does not use or require, the use of an Eclipse feature called Secure Storage. Using this Eclipse feature to store sensitive data can lead to exposure of that data. | [email protected] | 3.9 | 0.08% | 2024-02-23 | 2026-01-09 |
| CVE-2023-45696 | Sametime is impacted by sensitive fields with autocomplete enabled in the Legacy web chat client. By default, this allows user entered data to be stored by the browser. | [email protected] | 4.0 | 0.18% | 2024-02-10 | 2025-06-03 |
| CVE-2023-45718 | Sametime is impacted by a failure to invalidate sessions. The application is setting sensitive cookie values in a persistent manner in Sametime Web clients. When this happens, cookie values can remain valid even after a user has closed out their session. | [email protected] | 3.9 | 0.16% | 2024-02-09 | 2025-06-03 |
| CVE-2023-45716 | Sametime is impacted by sensitive information passed in URL. | [email protected] | 1.7 | 0.06% | 2024-02-09 | 2025-06-03 |
| CVE-2023-50349 | Sametime is impacted by a Cross Site Request Forgery (CSRF) vulnerability. Some REST APIs in the Sametime Proxy application can allow an attacker to perform malicious actions on the application. | [email protected] | 5.9 | 0.07% | 2024-02-09 | 2025-06-17 |
| CVE-2022-42446 | Starting with Sametime 12, anonymous users are enabled by default. After logging in as an anonymous user, one has the ability to browse the User Directory and potentially create chats with internal users. | [email protected] | 6.5 | 0.24% | 2022-12-12 | 2025-04-24 |
| CVE-2021-27773 | This vulnerability allows users to execute a clickjacking attack in the meeting's chat. | [email protected] | 4.2 | 0.14% | 2022-05-12 | 2024-11-21 |
| CVE-2021-27772 | Users are able to read group conversations without actively taking part in them. Next to one to one conversations, users are able to start group conversations with multiple users. It was found possible to obtain the contents of these group conversations without being part of it. This could lead to information leakage where confidential information discussed in private groups is read by other users without the users knowledge. | [email protected] | 7.1 | 0.18% | 2022-05-12 | 2024-11-21 |
| CVE-2021-27771 | User SID can be modified resulting in an Arbitrary File Upload or deletion of directories causing a Denial of Service. When interacting in a normal matter with the Sametime chat application, users hold a cookie containing their session ID (SID). This value is also used when sending chat messages, receiving notifications and/or transferring files. | [email protected] | 8.2 | 0.26% | 2022-05-12 | 2024-11-21 |
| CVE-2021-27770 | The vulnerability was discovered within the “FaviconService”. The service takes a base64-encoded URL which is then requested by the webserver. We assume this service is used by the “meetings”-function where users can specify an external URL where the online meeting will take place. | [email protected] | 6.8 | 0.35% | 2022-05-12 | 2024-11-21 |
| CVE-2021-27769 | Information leakage occurs when a website reveals information that could aid an attacker to further exploit the system. This information may or may not be sensitive and does not automatically mean a breach is likely to occur. Overall, any information that could be used for an attack should be limited whenever possible. | [email protected] | 5.3 | 0.20% | 2022-05-12 | 2024-11-21 |