CVE-2025-40914: MIK CryptX · Dependency on Vulnerable Third-Party Component
Affects MIK CryptXSource CVE Database V5
Mentioned vulnerabilities
Not known to be exploited · CVSS 9.8 Critical.
Data as of 26 Oct 2026, 08:30 UTC
- EPSS
- 0.5% chance of exploitation in 30 days – higher than 45% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 11 Jun 2025
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by 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
| Product | Affected | Fixed in |
|---|---|---|
| MIK CryptX | Affected
| Fixed in– |
AI-suggested
Immediate mitigation should focus on upgrading CryptX to version 0.087 or later, where the vulnerable libtommath dependency has been addressed. If upgrading is not immediately feasible, organizations should audit their Perl applications to identify usage of CryptX and assess exposure. Employing runtime application self-protection (RASP) or intrusion detection systems (IDS) to monitor for anomalous behaviors indicative of exploitation attempts can provide interim defense. Additionally, organizations should implement strict network segmentation and firewall rules to limit external access to services using CryptX. Code review and static analysis tools should be used to detect and remediate any unsafe integer operations in custom cryptographic code. Given the dependency nature of the vulnerability, supply chain security practices should be enhanced, including verifying the integrity and versions of third-party libraries. Finally, organizations should stay alert for patches or advisories from the vendor and subscribe to vulnerability intelligence feeds to respond promptly to emerging exploit information.
Description
Perl CryptX before version 0.087 contains a dependency that may be susceptible to an integer overflow. CryptX embeds a version of the libtommath library that is susceptible to an integer overflow associated with CVE-2023-36328.