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Vulnerability Details :

CVE-2021-27770

Summary
Assigner-HCL
Assigner Org ID-1e47fe04-f25f-42fa-b674-36de2c5e3cfc
Published At-12 May, 2022 | 21:25
Updated At-16 Sep, 2024 | 20:02
Rejected At-
Credits

HCL Sametime is vulnerable to arbitrary HTTP requests

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.

Vendors
-
Not available
Products
-
Metrics (CVSS)
VersionBase scoreBase severityVector
Weaknesses
Attack Patterns
Solution/Workaround
References
HyperlinkResource Type
EPSS History
Score
Latest Score
-
N/A
No data available for selected date range
Percentile
Latest Percentile
-
N/A
No data available for selected date range
Stakeholder-Specific Vulnerability Categorization (SSVC)
▼Common Vulnerabilities and Exposures (CVE)
cve.org
Assigner:HCL
Assigner Org ID:1e47fe04-f25f-42fa-b674-36de2c5e3cfc
Published At:12 May, 2022 | 21:25
Updated At:16 Sep, 2024 | 20:02
Rejected At:
▼CVE Numbering Authority (CNA)
HCL Sametime is vulnerable to arbitrary HTTP requests

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.

Affected Products
Vendor
HCL Technologies Ltd.HCL Software
Product
Sametime
Versions
Affected
  • 11.6
Problem Types
TypeCWE IDDescription
CWECWE-472CWE-472 External Control of Assumed-Immutable Web Parameter
Type: CWE
CWE ID: CWE-472
Description: CWE-472 External Control of Assumed-Immutable Web Parameter
Metrics
VersionBase scoreBase severityVector
3.16.8MEDIUM
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:L/A:L
Version: 3.1
Base score: 6.8
Base severity: MEDIUM
Vector:
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:L/A:L
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions

Configurations

Workarounds

Exploits

Credits

Timeline
EventDate
Replaced By

Rejected Reason

References
HyperlinkResource
https://support.hcltechsw.com/csm?id=kb_article&sysparm_article=KB0097430
x_refsource_MISC
Hyperlink: https://support.hcltechsw.com/csm?id=kb_article&sysparm_article=KB0097430
Resource:
x_refsource_MISC
▼Authorized Data Publishers (ADP)
CVE Program Container
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions

Configurations

Workarounds

Exploits

Credits

Timeline
EventDate
Replaced By

Rejected Reason

References
HyperlinkResource
https://support.hcltechsw.com/csm?id=kb_article&sysparm_article=KB0097430
x_refsource_MISC
x_transferred
Hyperlink: https://support.hcltechsw.com/csm?id=kb_article&sysparm_article=KB0097430
Resource:
x_refsource_MISC
x_transferred
Information is not available yet
▼National Vulnerability Database (NVD)
nvd.nist.gov
Source:psirt@hcl.com
Published At:12 May, 2022 | 22:15
Updated At:30 Jun, 2023 | 21:26

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.

CISA Catalog
Date AddedDue DateVulnerability NameRequired Action
N/A
Date Added: N/A
Due Date: N/A
Vulnerability Name: N/A
Required Action: N/A
Metrics
TypeVersionBase scoreBase severityVector
Primary3.18.8HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Secondary3.16.8MEDIUM
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:L/A:L
Primary2.06.8MEDIUM
AV:N/AC:M/Au:N/C:P/I:P/A:P
Type: Primary
Version: 3.1
Base score: 8.8
Base severity: HIGH
Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Type: Secondary
Version: 3.1
Base score: 6.8
Base severity: MEDIUM
Vector:
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:L/A:L
Type: Primary
Version: 2.0
Base score: 6.8
Base severity: MEDIUM
Vector:
AV:N/AC:M/Au:N/C:P/I:P/A:P
CPE Matches

HCL Technologies Ltd.
hcltech
>>sametime>>11.6
cpe:2.3:a:hcltech:sametime:11.6:*:*:*:*:*:*:*
Weaknesses
CWE IDTypeSource
NVD-CWE-OtherPrimarynvd@nist.gov
CWE-472Secondarypsirt@hcl.com
CWE ID: NVD-CWE-Other
Type: Primary
Source: nvd@nist.gov
CWE ID: CWE-472
Type: Secondary
Source: psirt@hcl.com
Evaluator Description

Evaluator Impact

Evaluator Solution

Vendor Statements

References
HyperlinkSourceResource
https://support.hcltechsw.com/csm?id=kb_article&sysparm_article=KB0097430psirt@hcl.com
Vendor Advisory
Hyperlink: https://support.hcltechsw.com/csm?id=kb_article&sysparm_article=KB0097430
Source: psirt@hcl.com
Resource:
Vendor Advisory

Change History

0
Information is not available yet

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Matching Score-4
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CVSS Score-8.8||HIGH
EPSS-0.09% / 26.01%
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7 Day CHG+0.01%
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Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

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Action-Not Available
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Product-chromewindowslinux_kernelmacosChrome
CWE ID-CWE-472
External Control of Assumed-Immutable Web Parameter
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Matching Score-4
Assigner-Android (associated with Google Inc. or Open Handset Alliance)
ShareView Details
Matching Score-4
Assigner-Android (associated with Google Inc. or Open Handset Alliance)
CVSS Score-8.8||HIGH
EPSS-0.03% / 8.79%
||
7 Day CHG~0.00%
Published-20 Mar, 2026 | 01:34
Updated-21 Mar, 2026 | 04:01
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

Integer overflow in ANGLE in Google Chrome on Windows prior to 146.0.7680.153 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: High)

Action-Not Available
Vendor-Google LLCMicrosoft Corporation
Product-chromewindowsChrome
CWE ID-CWE-472
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CWE ID-CWE-190
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Matching Score-4
Assigner-Android (associated with Google Inc. or Open Handset Alliance)
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Matching Score-4
Assigner-Android (associated with Google Inc. or Open Handset Alliance)
CVSS Score-8.8||HIGH
EPSS-0.04% / 10.83%
||
7 Day CHG~0.00%
Published-20 Mar, 2026 | 01:34
Updated-21 Mar, 2026 | 04:01
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

Integer overflow in ANGLE in Google Chrome prior to 146.0.7680.153 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: Medium)

Action-Not Available
Vendor-Apple Inc.Microsoft CorporationGoogle LLCLinux Kernel Organization, Inc
Product-linux_kernelchromewindowsmacosChrome
CWE ID-CWE-472
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CWE ID-CWE-190
Integer Overflow or Wraparound
CVE-2026-4679
Matching Score-4
Assigner-Chrome
ShareView Details
Matching Score-4
Assigner-Chrome
CVSS Score-8.8||HIGH
EPSS-0.04% / 12.38%
||
7 Day CHG~0.00%
Published-24 Mar, 2026 | 00:24
Updated-25 Mar, 2026 | 03:55
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

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Action-Not Available
Vendor-Apple Inc.Microsoft CorporationGoogle LLCLinux Kernel Organization, Inc
Product-linux_kernelchromewindowsmacosChrome
CWE ID-CWE-472
External Control of Assumed-Immutable Web Parameter
CWE ID-CWE-190
Integer Overflow or Wraparound
CVE-2026-3538
Matching Score-4
Assigner-Chrome
ShareView Details
Matching Score-4
Assigner-Chrome
CVSS Score-8.8||HIGH
EPSS-0.10% / 27.41%
||
7 Day CHG+0.01%
Published-04 Mar, 2026 | 19:24
Updated-11 Mar, 2026 | 16:16
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

Integer overflow in Skia in Google Chrome prior to 145.0.7632.159 allowed a remote attacker to potentially perform out of bounds memory access via a crafted HTML page. (Chromium security severity: Critical)

Action-Not Available
Vendor-Linux Kernel Organization, IncMicrosoft CorporationApple Inc.Google LLC
Product-macoswindowschromelinux_kernelChrome
CWE ID-CWE-191
Integer Underflow (Wrap or Wraparound)
CWE ID-CWE-472
External Control of Assumed-Immutable Web Parameter
CVE-2026-3536
Matching Score-4
Assigner-Chrome
ShareView Details
Matching Score-4
Assigner-Chrome
CVSS Score-8.8||HIGH
EPSS-0.10% / 27.41%
||
7 Day CHG+0.01%
Published-04 Mar, 2026 | 19:24
Updated-11 Mar, 2026 | 16:16
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

Integer overflow in ANGLE in Google Chrome prior to 145.0.7632.159 allowed a remote attacker to potentially perform out of bounds memory access via a crafted HTML page. (Chromium security severity: Critical)

Action-Not Available
Vendor-Linux Kernel Organization, IncMicrosoft CorporationApple Inc.Google LLC
Product-macoswindowschromelinux_kernelChrome
CWE ID-CWE-190
Integer Overflow or Wraparound
CWE ID-CWE-472
External Control of Assumed-Immutable Web Parameter
CVE-2026-3914
Matching Score-4
Assigner-Android (associated with Google Inc. or Open Handset Alliance)
ShareView Details
Matching Score-4
Assigner-Android (associated with Google Inc. or Open Handset Alliance)
CVSS Score-8.8||HIGH
EPSS-0.09% / 24.75%
||
7 Day CHG~0.00%
Published-11 Mar, 2026 | 22:04
Updated-13 Mar, 2026 | 15:42
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

Integer overflow in WebML in Google Chrome prior to 146.0.7680.71 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: High)

Action-Not Available
Vendor-Apple Inc.Microsoft CorporationGoogle LLCLinux Kernel Organization, Inc
Product-linux_kernelchromewindowsmacosChrome
CWE ID-CWE-190
Integer Overflow or Wraparound
CWE ID-CWE-472
External Control of Assumed-Immutable Web Parameter
CVE-2026-2649
Matching Score-4
Assigner-Chrome
ShareView Details
Matching Score-4
Assigner-Chrome
CVSS Score-8.8||HIGH
EPSS-0.04% / 11.24%
||
7 Day CHG~0.00%
Published-18 Feb, 2026 | 21:39
Updated-26 Feb, 2026 | 14:44
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

Integer overflow in V8 in Google Chrome prior to 145.0.7632.109 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: High)

Action-Not Available
Vendor-Google LLC
Product-chromeChrome
CWE ID-CWE-472
External Control of Assumed-Immutable Web Parameter
CVE-2025-10891
Matching Score-4
Assigner-Chrome
ShareView Details
Matching Score-4
Assigner-Chrome
CVSS Score-8.8||HIGH
EPSS-0.12% / 30.60%
||
7 Day CHG~0.00%
Published-24 Sep, 2025 | 16:17
Updated-26 Feb, 2026 | 17:48
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

Integer overflow in V8 in Google Chrome prior to 140.0.7339.207 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: High)

Action-Not Available
Vendor-Apple Inc.Linux Kernel Organization, IncGoogle LLCMicrosoft Corporation
Product-chromelinux_kernelmacoswindowsChrome
CWE ID-CWE-472
External Control of Assumed-Immutable Web Parameter
CVE-2025-10892
Matching Score-4
Assigner-Chrome
ShareView Details
Matching Score-4
Assigner-Chrome
CVSS Score-8.8||HIGH
EPSS-0.12% / 30.60%
||
7 Day CHG~0.00%
Published-24 Sep, 2025 | 16:17
Updated-26 Feb, 2026 | 17:48
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

Integer overflow in V8 in Google Chrome prior to 140.0.7339.207 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: High)

Action-Not Available
Vendor-Apple Inc.Linux Kernel Organization, IncGoogle LLCMicrosoft Corporation
Product-chromelinux_kernelmacoswindowsChrome
CWE ID-CWE-472
External Control of Assumed-Immutable Web Parameter
CWE ID-CWE-190
Integer Overflow or Wraparound
CVE-2025-0436
Matching Score-4
Assigner-Chrome
ShareView Details
Matching Score-4
Assigner-Chrome
CVSS Score-8.8||HIGH
EPSS-0.51% / 66.49%
||
7 Day CHG~0.00%
Published-15 Jan, 2025 | 10:58
Updated-21 Apr, 2025 | 17:33
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

Integer overflow in Skia in Google Chrome prior to 132.0.6834.83 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: High)

Action-Not Available
Vendor-Google LLC
Product-chromeChrome
CWE ID-CWE-472
External Control of Assumed-Immutable Web Parameter
CVE-2024-9123
Matching Score-4
Assigner-Chrome
ShareView Details
Matching Score-4
Assigner-Chrome
CVSS Score-8.8||HIGH
EPSS-0.22% / 44.07%
||
7 Day CHG~0.00%
Published-24 Sep, 2024 | 18:44
Updated-20 Nov, 2025 | 19:16
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

Integer overflow in Skia in Google Chrome prior to 129.0.6668.70 allowed a remote attacker to perform an out of bounds memory write via a crafted HTML page. (Chromium security severity: High)

Action-Not Available
Vendor-Google LLC
Product-chromeChromechrome
CWE ID-CWE-190
Integer Overflow or Wraparound
CWE ID-CWE-472
External Control of Assumed-Immutable Web Parameter
CVE-2024-7025
Matching Score-4
Assigner-Chrome
ShareView Details
Matching Score-4
Assigner-Chrome
CVSS Score-8.8||HIGH
EPSS-0.12% / 30.12%
||
7 Day CHG~0.00%
Published-27 Nov, 2024 | 17:50
Updated-02 Jan, 2025 | 17:56
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

Integer overflow in Layout in Google Chrome prior to 129.0.6668.89 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: High)

Action-Not Available
Vendor-Google LLC
Product-chromeChromechrome
CWE ID-CWE-472
External Control of Assumed-Immutable Web Parameter
CWE ID-CWE-190
Integer Overflow or Wraparound
CVE-2025-7656
Matching Score-4
Assigner-Android (associated with Google Inc. or Open Handset Alliance)
ShareView Details
Matching Score-4
Assigner-Android (associated with Google Inc. or Open Handset Alliance)
CVSS Score-8.8||HIGH
EPSS-0.22% / 44.59%
||
7 Day CHG+0.14%
Published-15 Jul, 2025 | 18:12
Updated-26 Feb, 2026 | 17:50
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

Integer overflow in V8 in Google Chrome prior to 138.0.7204.157 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: High)

Action-Not Available
Vendor-Google LLC
Product-Chrome
CWE ID-CWE-472
External Control of Assumed-Immutable Web Parameter
CVE-2025-6191
Matching Score-4
Assigner-Chrome
ShareView Details
Matching Score-4
Assigner-Chrome
CVSS Score-8.8||HIGH
EPSS-0.15% / 35.67%
||
7 Day CHG-0.01%
Published-18 Jun, 2025 | 18:16
Updated-26 Feb, 2026 | 17:50
Rejected-Not Available
Known To Be Used In Ransomware Campaigns?-Not Available
KEV Added-Not Available
KEV Action Due Date-Not Available

Integer overflow in V8 in Google Chrome prior to 137.0.7151.119 allowed a remote attacker to potentially perform out of bounds memory access via a crafted HTML page. (Chromium security severity: High)

Action-Not Available
Vendor-Google LLC
Product-chromeChrome
CWE ID-CWE-190
Integer Overflow or Wraparound
CWE ID-CWE-472
External Control of Assumed-Immutable Web Parameter
Details not found