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CVE-2021-27768— An SSL certificate host verification vulnerability affects HCL Verse for Android

Quick assessment

Affected

HCL Software Verse for Android

Exploitation

No confirmed in-the-wild exploitation; assess based on exposure

Recommended action

Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

HCL Technologies HCL Verse是印度HCL Technologies公司的一个可访问邮件并进行生活计划管理的移动端应用。 HCL Technologies HCL Verse for Android 12.0.9之前版本存在安全漏洞，该漏洞源于应用在服务器设置和登录流程期间存在主机名和SSL证书验证问题。攻击者通过使用中间人 (MITM) 攻击来利用该漏洞欺骗受信任的实体。

CVSS 6.3 · Medium EPSS 0.33% · P26 Updated Feb 25, 2026

Possible ATT&CK Techniques 2 AI

T1072 · Software Deployment Tools T1557 · Adversary-in-the-Middle

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I. Basic Information for CVE-2021-27768

Vulnerability Information

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Vulnerability Title

An SSL certificate host verification vulnerability affects HCL Verse for Android

Source: CVE Program / CVE List V5

Vulnerability Description

Using the ability to perform a Man-in-the-Middle (MITM) attack, which indicates a lack of hostname verification, sensitive account information was able to be intercepted. In this specific scenario, the application's network traffic was intercepted using a proxy server set up in 'transparent' mode while a certificate with an invalid hostname was active. The Android application was found to have hostname verification issues during the server setup and login flows; however, the application did not process requests post-login.

Source: CVE Program / CVE List V5

CVSS Information

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:L/A:N

Source: CVE Program / CVE List V5

Vulnerability Type

通道可被非端点访问(中间人攻击)

Source: CVE Program / CVE List V5

Vulnerability Title

HCL Technologies HCL Verse 信任管理问题漏洞

Source: CNNVD (China National Vulnerability Database)

Vulnerability Description

Source: CNNVD (China National Vulnerability Database)

CVSS Information

N/A

Source: CNNVD (China National Vulnerability Database)

Vulnerability Type

N/A

Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor	Product	Affected Versions	CPE	Subscribe
HCL Software	Verse for Android	unspecified ~ 12.0.9	-

II. Public POCs for CVE-2021-27768

#	POC Description	Source Link	Shenlong Link

AI-Generated POC Premium

No public POC found.

III. Intelligence Information for CVE-2021-27768

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Other References for CVE-2021-27768 (1)

https://support.hcltechsw.com/csm?id=kb_article&sysparm_article=KB0097753 x_refsource_MISC

https://www.cve.org/CVERecord?id=CVE-2021-27768

Same Patch Batch · HCL Software · 2022-05-12 · 7 CVEs total

CVE-2021-27771	8.2 HIGH	HCL Sametime is susceptible a file transfer service vulnerability
CVE-2021-27777	7.5 HIGH	HCL Unica Platform is vulnerable to XML External Entity (XXE) injection
CVE-2021-27772	7.1 HIGH	HCL Sametime is vulnerable to an information disclosure
CVE-2021-27770	6.8 MEDIUM	HCL Sametime is vulnerable to arbitrary HTTP requests
CVE-2021-27769	5.3 MEDIUM	HCL Sametime is vulnerable to an information disclosure
CVE-2021-27773	4.2 MEDIUM	HCL Sametime is vulnerable to clickjacking

IV. Related Vulnerabilities

Same product: Verse for Android

CVE-2026-21768
HCL Verse for Android is susceptible to an injection vulnera

Same vendor: HCL Software

Same weakness: CWE-300