CVE-2017-8056

MEDIUMNVD 5.35.3—
EchelonGraph scoreMEDIUM confidence

Score 5.3 from GitHub Security Advisory published 2022-05-17. NVD baseline CVSS 5.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
5.3
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 5%CVSS: 5.3Exploit: NoneExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

WatchGuard Fireware v11.12.1 and earlier mishandles requests referring to an XML External Entity (XXE), in the XML-RPC agent. This causes the Firebox wgagent process to crash. This process crash ends all authenticated sessions to the Firebox, including management connections, and prevents new authenticated sessions until the process has recovered. The Firebox may also experience an overall degradation in performance while the wgagent process recovers. An attacker could continuously send XML-RPC requests that contain references to external entities to perform a limited Denial of Service (DoS) attack against an affected Firebox.

CVSS v3
5.3
EG Score
5.3(medium)
EPSS
91.3%
KEV
Not listed

Published

April 22, 2017

Last Modified

May 13, 2026

References (8)

Data Freshness Timeline

(refreshed 11× in last 7d / 42× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-07-06 16:24 UTCEPSS rescore
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  1. 2026-06-19 19:23 UTCEPSS rescore
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  46. 2026-05-22 14:03 UTCEG score recompute
  47. 2026-05-22 14:03 UTCGHSA enrichment
  48. 2026-05-21 22:40 UTCEPSS rescore
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  50. 2026-05-20 22:37 UTCEPSS rescore
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Frequently asked(5)

What is CVE-2017-8056?
CVE-2017-8056 is a medium vulnerability published on April 22, 2017. WatchGuard Fireware v11.12.1 and earlier mishandles requests referring to an XML External Entity (XXE), in the XML-RPC agent. This causes the Firebox wgagent process to crash. This process crash ends all authenticated sessions to the Firebox, including management connections, and prevents new…
When was CVE-2017-8056 disclosed?
CVE-2017-8056 was first published in the National Vulnerability Database on April 22, 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-2017-8056 actively exploited?
CVE-2017-8056 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 91.3% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2017-8056?
CVE-2017-8056 has a CVSS v3 base score of 5.3 (NVD).
How do I remediate CVE-2017-8056?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2017-8056, 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.

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