Buffer overflow in Windows clients prior to 14.50
Priority LOW 29CWE-121Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- High
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- —
- Confidentiality · integrity · availability
- None · Low · High
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA.
Summary
CVE-2026-40949 is a buffer overflow vulnerability in the Secure Access Windows client prior to 14.50. Attackers with local control of the Windows client can use it to trigger a denial of service.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00103 1st percentileScored 2026-11-07
Fix Fixed Secure Access (Absolute Software): 14.50
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Absolute Security | Secure Access | before 14.50 | 14.50 | Patch available | CNA |
- Secure Access VendorAbsolute Security Affected before 14.50 Fixed in 14.50 Patch available CNA
CPE configurations NVD · 2
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:absolute:secure_access:*:*:*:*:*:*:*:* | before 14.50 | Vulnerable | Absolute Security |
| cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Microsoft |
- cpe:2.3:a:absolute:secure_access:*:*:*:*:*:*:*:* Versions before 14.50 Vulnerable ·Absolute Security
- cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Microsoft
Remediation
- Fix · CNA Secure Access (Absolute Software) Fixed in 14.50
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
Absolute Software Secure Access 14.50
10 records Highest priority Priority LOW 10 LOW
Other records, highest priority first
- TI-2026-25847 Arbitrary read/write vulnerability in Windows clients prior to 14.50Priority LOW 38
- TI-2026-29601 Buffer overflow in the Secure Access server prior to 14.50Priority LOW 37
- TI-2026-29602 Memory corruption in Secure Access Windows clients prior to 14.50Priority LOW 29
Timeline
- 2026-10-02 Threatist record created from CVE-2026-40949
- 2026-10-03 Alias added: GHSA-xg64-r9fm-3hrf
References
More Absolute Security Secure Access vulnerabilities
- TI-2026-25841 Memory management vulnerability in Secure Access servers CVSS 4.0HIGH 8.7
- TI-2026-39972 Out-of-bounds read in Absolute Security Secure Access CVSS 4.0HIGH 8.7
- TI-2026-29603 Privilge misconfiguration in Secure Access installers CVSS 4.0HIGH 8.5
- TI-2026-25847 Arbitrary read/write vulnerability in Windows clients prior to 14.50 CVSS 4.0HIGH 8.5
- TI-2025-31193 Memory management vulnerability in Absolute Secure Access server versions 9.0 to 13.54 CVSS 4.0HIGH 8.7
- TI-2026-39971 NULL pointer dereference in Absolute Security Secure Access CVSS 4.0MEDIUM 6.9
Sources
- CVE-2026-40949 · CVE Program
- CVE-2026-40949 · NVD
- FIRST EPSS
- GHSA-xg64-r9fm-3hrf · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences