CVE-2021-38423
CRITICALCVSS 9.8/10EPSS 1.22%
Last modified
CVE-2021-38423 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. All versions of GurumDDS improperly calculate the size to be used when allocating the buffer, which may result in a buffer overflow.. EPSS estimates a 1.22% chance of exploitation in the next 30 days.
Description
All versions of GurumDDS improperly calculate the size to be used when allocating the buffer, which may result in a buffer overflow.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Gurum | Gurumdds | All versions |
References
- https://www.cisa.gov/uscert/ics/advisories/icsa-21-315-02Third Party Advisory, US Government Resource
- https://www.cisa.gov/uscert/ics/advisories/icsa-21-315-02Third Party Advisory, US Government Resource
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2021-38423?
All versions of GurumDDS improperly calculate the size to be used when allocating the buffer, which may result in a buffer overflow.
How severe is CVE-2021-38423?
CVE-2021-38423 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 1.22% probability of exploitation in the next 30 days.
How do I fix CVE-2021-38423?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2021
- CVE-2021-38418Delta Electronics DIALink versions 1.2.4.0 and prior runs by…5.9
- CVE-2021-38419Fuji Electric V-Server Lite and Tellus Lite V-Simulator prio…7.8
- CVE-2021-3842nltk is vulnerable to Inefficient Regular Expression Complex…7.5
- CVE-2021-38420Delta Electronics DIALink versions 1.2.4.0 and prior default…7.8
- CVE-2021-38421Fuji Electric V-Server Lite and Tellus Lite V-Simulator prio…7.1
- CVE-2021-38422Delta Electronics DIALink versions 1.2.4.0 and prior stores …7.8
- CVE-2021-38424The tag interface of Delta Electronics DIALink versions 1.2.…7.8
- CVE-2021-38425eProsima Fast DDS versions prior to 2.4.0 (#2269) are suscep…9.1
- CVE-2021-38426FATEK Automation WinProladder versions 3.30 and prior lacks …7.8
- CVE-2021-38427RTI Connext DDS Professional and Connext DDS Secure Versions…7.8
- CVE-2021-38428Delta Electronics DIALink versions 1.2.4.0 and prior is vuln…4.8
- CVE-2021-38429OCI OpenDDS versions prior to 3.18.1 are vulnerable when an …9.1
Are you affected by CVE-2021-38423?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST