An unauthenticated reflected cross-site scripting (XSS) vulnerability exists in Sangoma Switchvox SMB Edition version 8.3 (104997). The application fails to properly sanitize the portal parameter supplied to the invalid_browser and invalid_browser_login handlers. User-supplied data is reflected into JavaScript generated by the application, allowing attacker-controlled script execution within a victim's browser.
CVE-2026-9585
“—” beside the score: it is equal to the CVSS score beside it.
This high-severity CVE scores 8.6 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.6% (45th percentile of EPSS-scored CVEs). No GitHub Security Advisory CVSS is on record for this CVE.
- High severity, but no confirmed exploitation yet
No fix is confirmed yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for the fix.
The CVE record's CNA (Security Risk Advisors (SRA)) lists Sangoma Switchvox SMB Edition versions before 8.4.0.2 as affected. No release containing a fix is confirmed on record.
- CVSS v3
- 8.6
- EG Score
- 8.6HIGHmedium confidence
- EG Risk
- 39EG Risk 39/100
EG Risk is EchelonGraph's 0–100 priority score. It fuses impact severity (EG Severity, the CVSS base score, never the KEV-floored or EPSS-lifted EG Score) with real-world exploitation and automatability, under weights EchelonGraph set by hand, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner.
How it’s computed (value × EchelonGraph’s weight)Severity86% × 45%Impact severity (EG Severity): CVSS 8.6 of 10. Never the KEV-floored or EPSS-lifted EG Score.Exploitation0.5% × 40%FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.Automatability0% × 15%CISA's SSVC Automatable value: no (Vulnrichment).SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Track* at high (mission-essential systems).Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.Action: No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines, and watch the vendor's advisory for the fix. - EPSS PROB
- 0.6%
- EPSS %ILE
- 45th
- KEV
- Not listed
What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)
The EG score (8.6): severity, escalated by confirmed exploitation. This CVE's 8.6 is its impact severity (EG Severity), not escalated.
- EG Severity
- 8.6 HIGHCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.a secondary CVSS source · CVSS v3.0 or v3.1
- EG Likelihood
- 0.6% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-10-18). FIRST's exploitation probability, not an EchelonGraph model.
- Confirmed exploitation
- None on record (CISA KEV, EG-KEV Tier 1)Reported apart from the likelihood: an observed fact, not a probability.
- EG Priority
- SSVC Track at medium mission impactTrack at low or medium mission impact; Track* at high (mission-essential systems).CISA BOD 26-04: 14 days if the affected system is publicly exposed; Fix on system upgrade if it is not.Each input and its source: the SSVC and BOD 26-04 blocks below.
SSVC (CISA's decision table, applied by EchelonGraph)Track at low or medium mission impact; Track* at high (mission-essential systems).
No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines, and watch the vendor's advisory for the fix.
Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table
BOD 26-04 (CISA's remediation timeline, Table 1)14 days if the affected system is publicly exposed; Fix on system upgrade if it is not.
In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it
Published
July 17, 2026
Last Modified
July 17, 2026
Advisory Details (2)
Auto-updated Jul 17, 2026Advisory: Sangoma Switchvox SMB :: SRA Labs | Cybersecurity Research & Innovation by Security Risk Advisors
https://labs.sra.io/posts/switchvox/Vendor Advisories for CVE-2026-9585(1)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 10× in last 7d / 46× in last 30d)
Each row is a time one of our pipelines fetched, updated or re-scored this CVE. 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. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.
Showing the most recent 99 of 226 refreshes on record for this CVE.
A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. 1 repeat row among the latest 100 is merged into the row it repeats. The 127 oldest rows on record are not shown and were not checked, so the counts can still include repeats.
- 2026-10-19 16:34 UTCEPSS rescoreEPSS 0.6% · 45th percentile
- 2026-10-19 13:51 UTCEG score recompute
- 2026-10-19 13:51 UTCGHSA enrichmentGHSA-34c9-mcf5-3rp3 · GitHub severity HIGH
- 2026-10-18 16:33 UTCEPSS rescoreEPSS 0.6% · 45th percentile
- 2026-10-18 02:57 UTCEG score recompute
- 2026-10-17 16:35 UTCEPSS rescoreEPSS 0.6% · 45th percentile
- 2026-10-16 16:45 UTCEPSS rescoreEPSS 0.6% · 45th percentile
- 2026-10-15 16:33 UTCEPSS rescoreEPSS 0.6% · 45th percentile
- 2026-10-14 16:34 UTCEPSS rescoreEPSS 0.6% · 44th percentile
- 2026-10-13 16:35 UTCEPSS rescoreEPSS 0.6% · 44th percentile
- 2026-10-13 04:10 UTCEG score recompute
- 2026-10-13 04:10 UTCGHSA enrichmentGHSA-34c9-mcf5-3rp3 · GitHub severity HIGH
- 2026-10-12 16:35 UTCEPSS rescoreEPSS 0.6% · 44th percentile
- 2026-10-12 14:41 UTCEG score recompute
- 2026-10-11 19:11 UTCEG score recompute
- 2026-10-11 16:27 UTCEG score recompute
- 2026-10-11 13:50 UTCEPSS rescoreEPSS 0.6% · 44th percentile
- 2026-10-11 13:39 UTCEG score recompute
- 2026-10-10 20:01 UTCEPSS rescoreEPSS 0.6% · 44th percentile
- 2026-10-09 20:08 UTCEPSS rescoreEPSS 0.6% · 44th percentile
- 2026-10-08 17:14 UTCEPSS rescoreEPSS 0.6% · 44th percentile
- 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.6% · 44th percentile
- 2026-10-06 15:19 UTCEPSS rescoreEPSS 0.6% · 44th percentile
- 2026-10-05 17:44 UTCEPSS rescoreEPSS 0.6% · 44th percentile
- 2026-10-04 23:23 UTCEPSS rescoreEPSS 0.6% · 44th percentile
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- 2026-10-03 14:26 UTCEPSS rescoreEPSS 0.6% · 44th percentile
- 2026-10-02 17:57 UTCEPSS rescoreEPSS 0.6% · 44th percentile
- 2026-10-01 19:51 UTCEPSS rescoreEPSS 0.6% · 44th percentile
- 2026-10-01 10:29 UTCEG score recompute
- 2026-10-01 10:29 UTCGHSA enrichmentGHSA-34c9-mcf5-3rp3 · GitHub severity HIGH
- 2026-09-30 15:04 UTCEPSS rescoreEPSS 0.6% · 44th percentile
- 2026-09-29 15:24 UTCEPSS rescoreEPSS 0.6% · 44th percentile
- 2026-09-28 13:52 UTCEPSS rescoreEPSS 0.6% · 44th percentile
- 2026-09-28 07:53 UTCEG score recompute
- 2026-09-28 07:53 UTCGHSA enrichmentGHSA-34c9-mcf5-3rp3 · GitHub severity HIGH
- 2026-09-27 13:49 UTCEPSS rescoreEPSS 0.6% · 44th percentile
- 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.6% · 44th percentile
- 2026-09-24 14:04 UTCEPSS rescoreEPSS 0.6% · 43rd percentile
- 2026-09-24 04:35 UTCEG score recompute
- 2026-09-24 04:35 UTCGHSA enrichmentGHSA-34c9-mcf5-3rp3 · GitHub severity HIGH
- 2026-09-23 17:54 UTCEPSS rescoreEPSS 0.6% · 45th percentile
- 2026-09-23 02:28 UTCEG score recompute
- 2026-09-23 02:28 UTCGHSA enrichmentGHSA-34c9-mcf5-3rp3 · GitHub severity HIGH
- 2026-09-22 16:01 UTCEPSS rescoreEPSS 0.6% · 45th percentile
- 2026-09-21 21:09 UTCEPSS rescoreEPSS 0.6% · 44th percentile
- 2026-09-20 20:16 UTCEPSS rescoreEPSS 0.6% · 45th percentile
- 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.6% · 45th percentile
- 2026-09-18 04:33 UTCEG score recompute
- 2026-09-18 04:33 UTCGHSA enrichmentGHSA-34c9-mcf5-3rp3 · GitHub severity HIGH
- 2026-09-17 19:32 UTCEPSS rescoreEPSS 0.6% · 44th percentile
- 2026-09-17 10:15 UTCEG score recompute
- 2026-09-17 10:15 UTCGHSA enrichmentGHSA-34c9-mcf5-3rp3 · GitHub severity HIGH
- 2026-09-16 14:09 UTCEPSS rescoreEPSS 0.6% · 44th percentile
- 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.6% · 44th percentile
- 2026-09-15 03:12 UTCEPSS rescoreEPSS 0.6% · 44th percentile
- 2026-09-14 06:32 UTCGHSA enrichmentGHSA-34c9-mcf5-3rp3 · GitHub severity HIGH
- 2026-09-13 17:55 UTCEG score recompute
- 2026-09-13 17:55 UTCGHSA enrichmentGHSA-34c9-mcf5-3rp3 · GitHub severity HIGH
- 2026-09-13 16:48 UTCEPSS rescoreEPSS 0.6% · 44th percentile
- 2026-09-13 05:19 UTCEG score recompute
- 2026-09-13 05:19 UTCGHSA enrichmentGHSA-34c9-mcf5-3rp3 · GitHub severity HIGH
- 2026-09-12 15:02 UTCEPSS rescoreEPSS 0.6% · 44th percentile
- 2026-09-12 10:29 UTCGHSA enrichmentGHSA-34c9-mcf5-3rp3 · GitHub severity HIGH
- 2026-09-11 21:06 UTCEG score recompute
- 2026-09-11 21:06 UTCGHSA enrichmentGHSA-34c9-mcf5-3rp3 · GitHub severity HIGH
- 2026-09-11 14:53 UTCEPSS rescoreEPSS 0.6% · 44th percentile
- 2026-09-11 09:38 UTCEPSS rescoreEPSS 0.6% · 44th percentile
- 2026-09-10 09:35 UTCEPSS rescoreEPSS 0.6% · 44th percentile
- 2026-09-08 22:01 UTCEPSS rescoreEPSS 0.6% · 44th percentile
- 2026-09-08 00:00 UTCEG score recompute
- 2026-09-08 00:00 UTCGHSA enrichmentGHSA-34c9-mcf5-3rp3 · GitHub severity HIGH
- 2026-09-06 13:48 UTCEPSS rescoreEPSS 0.6% · 44th percentile
- 2026-09-06 13:22 UTCGHSA enrichmentGHSA-34c9-mcf5-3rp3 · GitHub severity HIGH
- 2026-09-05 20:27 UTCEG score recompute
- 2026-09-05 20:27 UTCGHSA enrichmentGHSA-34c9-mcf5-3rp3 · GitHub severity HIGH
- 2026-09-05 15:31 UTCEPSS rescoreEPSS 0.6% · 44th percentile
- 2026-09-04 05:07 UTCEPSS rescoreEPSS 0.6% · 44th percentile
- 2026-09-02 14:12 UTCEPSS rescoreEPSS 0.6% · 44th percentile
- 2026-09-01 13:54 UTCEPSS rescoreEPSS 0.6% · 44th percentile
- 2026-09-01 04:40 UTCEPSS rescoreEPSS 0.6% · 44th percentile
- 2026-08-31 04:31 UTCEG score recompute
- 2026-08-31 04:31 UTCGHSA enrichmentGHSA-34c9-mcf5-3rp3 · GitHub severity HIGH
- 2026-08-30 19:18 UTCEPSS rescoreEPSS 0.6% · 44th percentile
- 2026-08-30 15:54 UTCGHSA enrichmentGHSA-34c9-mcf5-3rp3 · GitHub severity HIGH
- 2026-08-30 03:18 UTCEG score recompute
- 2026-08-30 03:18 UTCGHSA enrichmentGHSA-34c9-mcf5-3rp3 · GitHub severity HIGH
- 2026-08-30 01:22 UTCEPSS rescoreEPSS 0.6% · 43rd percentile
- 2026-08-28 21:42 UTCEPSS rescoreEPSS 0.6% · 43rd percentile
- 2026-08-28 01:51 UTCEG score recompute
- 2026-08-28 01:51 UTCGHSA enrichmentGHSA-34c9-mcf5-3rp3 · GitHub severity HIGH
- 2026-08-27 14:25 UTCEPSS rescoreEPSS 0.6% · 43rd percentile
- 2026-08-27 13:15 UTCGHSA enrichmentGHSA-34c9-mcf5-3rp3 · GitHub severity HIGH
- 2026-08-27 00:32 UTCEG score recompute
- 2026-08-27 00:32 UTCGHSA enrichmentGHSA-34c9-mcf5-3rp3 · GitHub severity HIGH
- 2026-08-26 14:47 UTCEPSS rescoreEPSS 0.6% · 43rd percentile
- 2026-08-26 11:55 UTCGHSA enrichmentGHSA-34c9-mcf5-3rp3 · GitHub severity HIGH
- 2026-08-25 20:57 UTCEG score recompute
- 2026-08-25 20:57 UTCGHSA enrichmentGHSA-34c9-mcf5-3rp3 · GitHub severity HIGH
- 2026-08-25 13:49 UTCEPSS rescoreEPSS 0.6% · 43rd percentile
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Frequently asked(5)
What is CVE-2026-9585?
When was the CVE record for CVE-2026-9585 published?
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What is the CVSS score of CVE-2026-9585?
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Dependency Blast Radius
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