Packetbeat versions prior to 5.6.4 are affected by a denial of service flaw in the PostgreSQL protocol handler. If Packetbeat is listening for PostgreSQL traffic and a user is able to send arbitrary network traffic to the monitored port, the attacker could prevent Packetbeat from properly logging other PostgreSQL traffic.
CVE-2017-11480
HIGHNVD 7.57.5—
EchelonGraph scoreMEDIUM confidence
This high-severity CVE scores 7.5 under NVD CVSS v3. EPSS exploit probability: 0.5%, top 32% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
Triggered by: NVD CVSS baseline
Sources: epss, nvd
7.5
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
- High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 1%CVSS: 7.5Exploit: NoneExposed: 0
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 7.5
- EG Score
- 7.5(medium)
- EPSS
- 70.0%
- KEV
- Not listed
Published
December 8, 2017
Last Modified
May 13, 2026
References (2)
- security@elastichttps://discuss.elastic.co/t/beats-5-6-4-security-update/106739
- af854a3a-2127-422b-91ae-364da2661108https://discuss.elastic.co/t/beats-5-6-4-security-update/106739
Frequently asked(5)
What is CVE-2017-11480?
CVE-2017-11480 is a high vulnerability published on December 8, 2017. Packetbeat versions prior to 5.6.4 are affected by a denial of service flaw in the PostgreSQL protocol handler. If Packetbeat is listening for PostgreSQL traffic and a user is able to send arbitrary network traffic to the monitored port, the attacker could prevent Packetbeat from properly logging…
When was CVE-2017-11480 disclosed?
CVE-2017-11480 was first published in the National Vulnerability Database on December 8, 2017, with the most recent update on May 13, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2017-11480 actively exploited?
CVE-2017-11480 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 70.0% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2017-11480?
CVE-2017-11480 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2017-11480?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2017-11480, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2017-11480
Is Your Infrastructure Affected by CVE-2017-11480?
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