CVE-2026-49848

MEDIUMPre-NVD 4.34.3—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 4.3 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.2%, top 93% 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, secondary
4.3
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 0%CVSS: 4.3Exploit: NoneExposed: 0

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

FreeSWITCH is a Software Defined Telecom Stack enabling the digital transformation from proprietary telecom switches to a software implementation that runs on any commodity hardware. Prior to version 1.11.1, mod_verto's check_auth userauth branch wrote request-supplied userVariables into the connection state before comparing the supplied password. The writes are append-only and the connection is not closed on a failed compare, so values declared on bad-password attempts persisted on the same WebSocket and carried into a subsequent successful login on that connection. This issue has been patched in version 1.11.1.

CVSS v3
4.3
EG Score
4.3(medium)
EPSS
6.8%
KEV
Not listed

Published

June 9, 2026

Last Modified

June 10, 2026

Advisory Details (2)

Auto-updated Jun 16, 2026
Patch available. Sources: github_release, github.
github Patch Available

Pre-authentication `userVariables` injection in `mod_verto`. · Advisory · signalwire/freeswitch · GitHub

https://github.com/signalwire/freeswitch/security/advisories/GHSA-j38x-xm7f-9p2f
github_release Patch Available

FreeSWITCH v1.11.1 Release

Patch available: signalwire/freeswitch v1.11.1

https://github.com/signalwire/freeswitch/releases/tag/v1.11.1

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 12× in last 7d / 67× 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. 2026-07-15 16:57 UTCEPSS rescore
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  3. 2026-07-15 10:07 UTCEG score recompute
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  1. 2026-07-01 06:52 UTCEG score recompute
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  20. 2026-06-23 20:30 UTCEG score recompute
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  22. 2026-06-22 14:25 UTCEPSS rescore
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  24. 2026-06-21 19:27 UTCEG score recompute
  25. 2026-06-21 14:56 UTCEPSS rescore
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  29. 2026-06-20 16:58 UTCEG score recompute
  30. 2026-06-19 19:26 UTCEPSS rescore
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  40. 2026-06-16 01:45 UTCEG score recompute
  41. 2026-06-15 17:49 UTCEPSS rescore
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  44. 2026-06-14 23:18 UTCEPSS rescore
  45. 2026-06-14 05:55 UTCEG score recompute
  46. 2026-06-13 23:00 UTCEPSS rescore
  47. 2026-06-13 08:01 UTCEG score recompute
  48. 2026-06-12 23:12 UTCEPSS rescore
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  50. 2026-06-12 10:06 UTCEG score recompute
  51. 2026-06-11 14:00 UTCEPSS rescore
  52. 2026-06-11 12:12 UTCEG score recompute
  53. 2026-06-10 22:19 UTCEPSS rescore
  54. 2026-06-10 14:17 UTCEG score recompute
  55. 2026-06-09 16:23 UTCEG score recompute
  56. 2026-06-09 16:22 UTCMITRE cvelistV5first tracked

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Frequently asked(5)

What is CVE-2026-49848?
CVE-2026-49848 is a medium vulnerability published on June 9, 2026. FreeSWITCH is a Software Defined Telecom Stack enabling the digital transformation from proprietary telecom switches to a software implementation that runs on any commodity hardware. Prior to version 1.11.1, modverto's checkauth userauth branch wrote request-supplied userVariables into the…
When was CVE-2026-49848 disclosed?
CVE-2026-49848 was first published in the National Vulnerability Database on June 9, 2026, with the most recent update on June 10, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-49848 actively exploited?
CVE-2026-49848 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 6.8% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-49848?
CVE-2026-49848 has a CVSS v3 base score of 4.3 (NVD).
How do I remediate CVE-2026-49848?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-49848, 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

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