Missing authentication in Kaspersky Network Agent for Windows
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- Low · Low · None
- Fix status
- No fix listed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-306.
Summary
The Network Agent for Windows module of Kaspersky Security Center has a missing authentication flaw (CWE-306) affecting Network Agent builds from 10.5.1781 to 16.3.0.1207 and Administration Server builds from 15.1.0.20748. A local user with low privileges can cause the Network Agent module to malfunction. The sources report no evidence of exploitation in the wild.
Written with Claude Haiku 5.5 from the sources below · 2026-10-29
Description from the CNA
Kaspersky has fixed a vulnerability in the Network Agent for Windows module of Kaspersky Security Center. The vulnerability could potentially cause the Network Agent module of Kaspersky Security Center to malfunction. There are no evidence of the vulnerability exploitation in-the-wild.
Why it matters now
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 |
|---|---|---|---|---|---|
| Kaspersky | Network Agent | 16.3.0.1207; 16.2.0.1477; 16.2.0.1023; 16.2.0.917; 16.1.0.6517; 16.0.0.254; 15.4.0.8952; 15.3.0.392; 15.2.0.442; 15.1.0.20748; 15.1.0.11795; 14.0.0.20023; 10.5.1781 | — | No fix listed | CNA |
| Kaspersky | Administration Server | 15.1.0.22239; 15.1.0.20748 | — | No fix listed | CNA |
- Network Agent VendorKaspersky Affected 16.3.0.1207; 16.2.0.1477; 16.2.0.1023; 16.2.0.917; 16.1.0.6517; 16.0.0.254; 15.4.0.8952; 15.3.0.392; 15.2.0.442; 15.1.0.20748; 15.1.0.11795; 14.0.0.20023; 10.5.1781 Fixed in — No fix listed CNA
- Administration Server VendorKaspersky Affected 15.1.0.22239; 15.1.0.20748 Fixed in — No fix listed CNA
Remediation
The sources list no fixed version for Kaspersky Network Agent. The sources list no fixed version for Kaspersky Administration Server.
Written with Claude Haiku 5.5 from the sources below · 2026-10-29
Timeline
- 2026-10-29 Threatist record created from CVE-2026-88941
- 2026-10-29 CVSS score changed · CNA
- 2026-10-29 CISA SSVC decision points changed
- 2026-10-29 Priority changed: MEDIUM → LOW
- 2026-10-29 Alias added: GHSA-8v3f-7x3g-g62r
References
Advisory 1
More Kaspersky vulnerabilities
- TI-2012-01284 The ZIP file parser in AhnLab V3 Internet Security 2011.01.18.00, AVG Anti-Virus… CVSS 2.0MEDIUM 4.3
- TI-2012-01283 The Gzip file parser in AVG Anti-Virus 10.0.0.1190, Bitdefender 7.2, Command Antivirus… CVSS 2.0MEDIUM 4.3
- TI-2012-01281 The TAR file parser in AhnLab V3 Internet Security 2011.01.18.00, Avira AntiVir… CVSS 2.0MEDIUM 4.3
- TI-2012-01279 The TAR file parser in Avira AntiVir 7.11.1.163, Antiy Labs AVL SDK 2.0.3.7, avast!… CVSS 2.0MEDIUM 4.3
- TI-2012-01278 The TAR file parser in AVG Anti-Virus 10.0.0.1190, Quick Heal (aka Cat QuickHeal) 11.00… CVSS 2.0MEDIUM 4.3
- TI-2012-01275 The CAB file parser in Dr.Web 5.0.2.03300, Trend Micro HouseCall 9.120.0.1004, Kaspersky… CVSS 2.0MEDIUM 4.3
Sources
- CVE-2026-88941 · CVE Program
- CVE-2026-88941 · NVD
- FIRST EPSS
- GHSA-8v3f-7x3g-g62r · 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