HCL Sametime HTTP Request input validation

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.
CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
2.7$0-$5k0.00

Summaryinfo

A vulnerability was found in HCL Sametime. It has been declared as problematic. This affects an unknown part of the component HTTP Request Handler. Executing a manipulation can lead to input validation. The identification of this vulnerability is CVE-2025-31966. The attack may be launched remotely. There is no exploit available.

Detailsinfo

A vulnerability has been found in HCL Sametime (version now known) and classified as problematic. This vulnerability affects some unknown processing of the component HTTP Request Handler. The manipulation with an unknown input leads to a input validation vulnerability. The CWE definition for the vulnerability is CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. As an impact it is known to affect integrity. CVE summarizes:

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.

The advisory is shared for download at support.hcl-software.com. This vulnerability was named CVE-2025-31966 since 04/01/2025. The exploitation appears to be easy. The attack can be initiated remotely. Additional levels of successful authentication are needed for exploitation. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 03/22/2026).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Vendor

Name

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 2.7
VulDB Meta Temp Score: 2.7

VulDB Base Score: 2.7
VulDB Temp Score: 2.7
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 2.7
CNA Vector (HCL): 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Input validation
CWE: CWE-20
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Timelineinfo

04/01/2025 CVE reserved
03/17/2026 +350 days Advisory disclosed
03/17/2026 +0 days VulDB entry created
03/22/2026 +5 days VulDB entry last update

Sourcesinfo

Advisory: KB0124722
Status: Confirmed

CVE: CVE-2025-31966 (🔒)
GCVE (CVE): GCVE-0-2025-31966
GCVE (VulDB): GCVE-100-351364

Entryinfo

Created: 03/17/2026 14:17
Updated: 03/22/2026 01:23
Changes: 03/17/2026 14:17 (61), 03/22/2026 01:23 (1)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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