Heap-based buffer overflow in AXIS OS
Priority LOW 32CWE-122Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- High
- Impact type
- —
- Confidentiality · integrity · availability
- High · None · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA.
Summary
User controlled parameters related to SMTP notifications are not correctly validated. This can lead to a buffer overflow resulting in crashes and data leakage.
Why it matters now
EPSS 0.00805 57th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Axis Communications AB | AXIS OS | AXIS OS 6.40 or later | — | No fix listed | CNA |
- AXIS OS VendorAxis Communications AB Affected AXIS OS 6.40 or later Fixed in — No fix listed CNA
CPE configurations NVD · 4
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:axis:axis_os:*:*:*:*:active:*:*:* | before 10.7 | Vulnerable | Axis Communications AB |
| cpe:2.3:o:axis:axis_os_2016:*:*:*:*:lts:*:*:* | before 6.50.5.5 | Vulnerable | Axis Communications AB |
| cpe:2.3:o:axis:axis_os_2018:*:*:*:*:lts:*:*:* | before 8.40.4.3 | Vulnerable | Axis Communications AB |
| cpe:2.3:o:axis:axis_os_2020:*:*:*:*:lts:*:*:* | before 9.80.3.5 | Vulnerable | Axis Communications AB |
- cpe:2.3:o:axis:axis_os:*:*:*:*:active:*:*:* Versions before 10.7 Vulnerable ·Axis Communications AB
- cpe:2.3:o:axis:axis_os_2016:*:*:*:*:lts:*:*:* Versions before 6.50.5.5 Vulnerable ·Axis Communications AB
- cpe:2.3:o:axis:axis_os_2018:*:*:*:*:lts:*:*:* Versions before 8.40.4.3 Vulnerable ·Axis Communications AB
- cpe:2.3:o:axis:axis_os_2020:*:*:*:*:lts:*:*:* Versions before 9.80.3.5 Vulnerable ·Axis Communications AB
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2021-31986
- 2026-10-03 Alias added: GHSA-qx7f-84h6-wf98
References
More Axis Communications AB Axis Os vulnerabilities
- TI-2023-07814 Remote code execution vulnerability during the installation of ACAP applications on the Axis device CVSS 3.1CRITICAL 9.1
- TI-2025-00260 The VAPIX Device Configuration framework allowed a privilege escalation, enabling a… CVSS 3.1CRITICAL 9.4
- TI-2025-10210 OS command injection in AXIS OS CVSS 3.1HIGH 8.8
- TI-2023-05336 Insufficient input validation in VAPIX API create_overlay.cgi CVSS 3.1HIGH 8.8
- TI-2025-00291 Improper privilege management in AXIS OS CVSS 3.1HIGH 8.8
- TI-2021-11974 Injection in AXIS OS CVSS 3.1HIGH 8.8
Sources
- CVE-2021-31986 · CVE Program
- CVE-2021-31986 · NVD
- FIRST EPSS
- GHSA-qx7f-84h6-wf98 · GitHub Advisory Database · CC BY 4.0
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