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VulnerabilityPublished

CVE-2025-31987: HCL Software Connections Docs · Asymmetric Resource Consumption

Affects HCL Software Connections DocsSource CVE Database V5

0

Not known to be exploited · CVSS 4.8 Medium.

Data as of 26 Oct 2026, 14:05 UTC

CVSS 3.1 base score
4.8Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.2% chance of exploitation in 30 days – higher than 11% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:N/I:N/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 14 Aug 2025

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.

What to do

Affected software

ProductAffectedFixed in
HCL Software Connections DocsAffected
  • =2.0.2
Fixed in–

AI-suggested

Given the absence of an official patch, European organizations should implement several specific mitigations: 1) Restrict upload permissions to trusted users only and enforce strict authentication and authorization controls to minimize the risk of malicious uploads. 2) Implement file upload validation and filtering at the perimeter or proxy level to detect and block suspicious or malformed documents before they reach Connections Docs. 3) Monitor resource utilization closely on servers running Connections Docs to detect abnormal spikes indicative of exploitation attempts, enabling rapid response and mitigation. 4) Employ rate limiting on document uploads to reduce the risk of resource exhaustion from repeated attempts. 5) Isolate Connections Docs instances in segmented network zones with limited access to critical infrastructure to contain potential DoS impacts. 6) Prepare incident response plans specifically addressing DoS scenarios involving document uploads, including fallback communication channels. 7) Stay updated with HCL Software advisories and apply patches promptly once available. 8) Consider deploying web application firewalls (WAFs) with custom rules to detect and block exploit attempts targeting this vulnerability.

Description

HCL Connections Docs may mishandle validation of certain uploaded documents leading to denial of service due to resource exhaustion.

References

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