Heimdal Thor Agent 2.5.17x before 2.5.173 does not verify X.509 certificates from TLS…
Priority MEDIUM 42CWE-295Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Spoofing
- Confidentiality · integrity · availability
- High · High · None
- Fix status
- No fix listed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA. Impact type from CWE-295.
Summary
Heimdal Thor Agent 2.5.17x before 2.5.173 does not verify X.509 certificates from TLS servers, which allows remote attackers to spoof servers and obtain sensitive information via a crafted certificate.
Why it matters now
EPSS 0.01305 70th 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 |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 3
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:heimdalsecurity:thor:2.5.170:rc:*:*:*:*:*:* | 2.5.170 rc | Vulnerable | Heimdalsecurity |
| cpe:2.3:a:heimdalsecurity:thor:2.5.171:*:*:*:*:*:*:* | 2.5.171 | Vulnerable | Heimdalsecurity |
| cpe:2.3:a:heimdalsecurity:thor:2.5.172:*:*:*:*:*:*:* | 2.5.172 | Vulnerable | Heimdalsecurity |
- cpe:2.3:a:heimdalsecurity:thor:2.5.170:rc:*:*:*:*:*:* Versions 2.5.170 rc Vulnerable ·Heimdalsecurity
- cpe:2.3:a:heimdalsecurity:thor:2.5.171:*:*:*:*:*:*:* Versions 2.5.171 Vulnerable ·Heimdalsecurity
- cpe:2.3:a:heimdalsecurity:thor:2.5.172:*:*:*:*:*:*:* Versions 2.5.172 Vulnerable ·Heimdalsecurity
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2019-8351
- 2026-10-03 Alias added: GHSA-xp43-gqwv-mmjp
References
More Heimdalsecurity Thor vulnerabilities
- TI-2023-13858 An issue was discovered in Heimdal Thor agent versions 3.4.2 and before 3.7.0 on Windows… CVSS 3.1CRITICAL 9.8
- TI-2023-13859 An issue was discovered in Heimdal Thor agent versions 3.4.2 and before on Windows and… CVSS 3.1CRITICAL 9.1
- TI-2023-13857 An issue was discovered in Heimdal Thor agent versions 3.4.2 and before on Windows and… CVSS 3.1CRITICAL 9.8
Sources
- CVE-2019-8351 · CVE Program
- CVE-2019-8351 · NVD
- FIRST EPSS
- GHSA-xp43-gqwv-mmjp · 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