How severe is CVE-2017-17099?

CVE-2017-17099 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2017-17099 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 12% (96th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2017-17099?

CVE-2017-17099 affects Flexense Syncbreeze. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2017-17099?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

When was CVE-2017-17099 published?

CVE-2017-17099 was published on 2017-12-03 and last updated on 2026-06-17.

CVE-2017-17099

CVE-2017-17099 is a high-severity vulnerability in Flexense Syncbreeze with a CVSS 3.x base score of 7.8. Its EPSS exploit-prediction score of 12% places it in the 96th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-119.

Key facts

Severity: High (CVSS 3.x base score 7.8)
CVSS v2: 7.2
EPSS exploit prediction: 12% (96th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-119
Affected product: Flexense Syncbreeze
Published: 2017-12-03
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is CVE-2017-17099?: 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.
How severe is CVE-2017-17099?: CVE-2017-17099 has a CVSS 3.x base score of 7.8, rated high severity. It is exploitable over local access with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2017-17099 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 12% (96th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2017-17099?: CVE-2017-17099 affects Flexense Syncbreeze. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2017-17099?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
When was CVE-2017-17099 published?: CVE-2017-17099 was published on 2017-12-03 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:flexense:syncbreeze:10.1.16:*:*:*:enterprise:*:*:*

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