CVE-2021-31986
MEDIUMCVSS 6.8/10EPSS 0.78%
Last modified
CVE-2021-31986 is a medium-severity vulnerability rated 6.8/10 on the CVSS scale. User controlled parameters related to SMTP notifications are not correctly validated. This can lead to a buffer overflow resulting in crashes and data leakage.. EPSS estimates a 0.78% chance of exploitation in the next 30 days.
Description
User controlled parameters related to SMTP notifications are not correctly validated. This can lead to a buffer overflow resulting in crashes and data leakage.
Metrics
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Axis | Axis Os | < 10.7 |
| Axis | Axis Os 2016 | < 6.50.5.5 |
| Axis | Axis Os 2018 | < 8.40.4.3 |
| Axis | Axis Os 2020 | < 9.80.3.5 |
References
- https://www.axis.com/files/tech_notes/CVE-2021-31986.pdfVendor Advisory
- https://www.axis.com/files/tech_notes/CVE-2021-31986.pdfVendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2021-31986?
User controlled parameters related to SMTP notifications are not correctly validated. This can lead to a buffer overflow resulting in crashes and data leakage.
How severe is CVE-2021-31986?
CVE-2021-31986 has a CVSS score of 6.8/10 (MEDIUM severity). The EPSS model estimates a 0.78% probability of exploitation in the next 30 days.
How do I fix CVE-2021-31986?
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.
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Are you affected by CVE-2021-31986?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST