What is the CVSS score of CVE-2017-17099?

CVE-2017-17099 has a CVSS 3.0 base score of 7.8 (High). CVSS vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 9.1%.

Is there a public PoC exploit available for CVE-2017-17099?

Yes, a public proof-of-concept exploit is available for CVE-2017-17099. Prioritise patching immediately. EPSS: 9.1%.

Syncbreeze CVE-2017-17099

HIGH

Buffer Overflow (CWE-119)

2017-12-03 cve@mitre.org

Buffer Overflow Microsoft Syncbreeze

7.8

CVSS 3.0 · NVD

Severity by source

NVD PRIMARY

7.8 HIGH

AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

CVE Published

Dec 03, 2017 - 21:29 cve.org

HIGH 7.8

DescriptionCVE.org

There exists an unauthenticated SEH based Buffer Overflow vulnerability in the HTTP server of Flexense SyncBreeze Enterprise v10.1.16. When sending a GET request with an excessive length, it is possible for a malicious user to overwrite the SEH record and execute a payload that would run under the Windows SYSTEM account.

AnalysisAI

There exists an unauthenticated SEH based Buffer Overflow vulnerability in the HTTP server of Flexense SyncBreeze Enterprise v10.1.16. Rated high severity (CVSS 7.8), this vulnerability is low attack complexity. Public exploit code available and no vendor patch available.

Technical ContextAI

This vulnerability is classified as Buffer Overflow (CWE-119), which allows attackers to corrupt memory to execute arbitrary code or crash the application. There exists an unauthenticated SEH based Buffer Overflow vulnerability in the HTTP server of Flexense SyncBreeze Enterprise v10.1.16. When sending a GET request with an excessive length, it is possible for a malicious user to overwrite the SEH record and execute a payload that would run under the Windows SYSTEM account. Affected products include: Flexense Syncbreeze.

RemediationAI

No vendor patch is available at time of analysis. Monitor vendor advisories for updates. Use memory-safe languages or bounds-checking. Enable ASLR, DEP/NX, stack canaries. Use safe string functions.