CVE-2026-49472

MEDIUMPre-NVD 5.35.3
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to the CVSS score beside it.

This medium-severity CVE scores 5.3 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.2% (13th percentile of EPSS-scored CVEs). No GitHub Security Advisory CVSS is on record for this CVE.

Triggered by: Headline CVSS from a secondary CVSS source
Sources: EPSS, a secondary CVSS source

Also known asEUVD-2026-35469 (ENISA EUVD)Source: ENISA EUVD

5.3EG
EchelonGraph verdictMonitorRemediate within your standard update timelines (the SSVC decision on this page).
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.2%CVSS: 5.3Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

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 1.11.0, FreeSWITCH includes a vulnerable function, PREFIX(prologTok)(), in libs/xmlrpc-c/lib/expat/xmltok/xmltok_impl.c, which was cloned from an outdated and vulnerable version in libexpat/libexpat. The function did not receive the corresponding security patch. This issue has been patched in version 1.11.0.

CVSS v3
5.3
EG Score
5.3MEDIUMmedium confidence
EG Risk
24
EG Risk 24/100

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)
Severity53% × 45%
Impact severity (EG Severity): CVSS 5.3 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation0.4% × 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 every mission impact level.
Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (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: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.2%
EPSS %ILE
13th
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 (5.3): severity, escalated by confirmed exploitation. This CVE's 5.3 is its impact severity (EG Severity), not escalated.

EG Severity
5.3 MEDIUMCVSS-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
0.2% within 30 daysSource: FIRST EPSS. 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 every mission impact level.CISA BOD 26-04: 60 days if the affected system is publicly exposed; Fix on system upgrade if it is not.Each input and its source, and whom BOD 26-04 binds: the SSVC and BOD 26-04 blocks below.

SSVC (CISA's decision table, applied by EchelonGraph)Track at every mission impact level.

A fix is available. Apply it within your standard update timelines.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (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)60 days if the affected system is publicly exposed; Fix on system upgrade if it is not.

The score's inputs: In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA Vulnrichment) · Technical impact partial (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

June 9, 2026

Last Modified

July 23, 2026

Advisory Details (2)

Auto-updated Jun 15, 2026
Patch available. Sources: github_release, github.
GitHub advisoryMentions a patch (unverified)

FreeSWITCH includes a vulnerable function, PREFIX(prologTok)() from libexpat · Advisory · signalwire/freeswitch · GitHub

https://github.com/signalwire/freeswitch/security/advisories/GHSA-4jm3-xpcm-mwwq
GitHub release Patch Available

FreeSWITCH v1.11.0 Release

Patch available: signalwire/freeswitch v1.11.0

https://github.com/signalwire/freeswitch/releases/tag/v1.11.0

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 5× in last 7d / 29× 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 its CVE.org record (CNA or CISA ADP). 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). "EchelonGraph re-scored" is our own recompute of this CVE's score, not an update from a source, and is not counted in the refreshes above. Most recent first.

Showing the most recent 100 of 187 rows 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. None are among the latest 100 rows. The 87 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-11-13 16:53 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  2. 2026-11-12 16:34 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  3. 2026-11-11 16:39 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  4. 2026-11-10 16:44 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  5. 2026-11-09 16:35 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  6. 2026-11-06 16:38 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  7. 2026-11-05 16:38 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  8. 2026-11-04 16:35 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  9. 2026-11-03 16:48 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  10. 2026-11-02 16:45 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  11. 2026-11-01 16:34 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  12. 2026-10-31 16:32 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  13. 2026-10-30 16:34 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  14. 2026-10-30 13:25 UTCOSV refresh
  15. 2026-10-29 16:33 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  16. 2026-10-28 16:32 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  17. 2026-10-27 16:32 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  18. 2026-10-26 16:31 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  19. 2026-10-25 16:33 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  20. 2026-10-25 14:22 UTCEchelonGraph re-scored
  21. 2026-10-24 16:33 UTCEPSS rescoreEPSS 0.4% · 30th percentile
  22. 2026-10-23 16:32 UTCEPSS rescoreEPSS 0.4% · 29th percentile
  23. 2026-10-22 23:00 UTCEchelonGraph re-scored
  24. 2026-10-22 16:34 UTCEPSS rescoreEPSS 0.4% · 29th percentile
  25. 2026-10-21 16:33 UTCEPSS rescoreEPSS 0.4% · 29th percentile
Show 75 more
  1. 2026-10-20 16:33 UTCEPSS rescoreEPSS 0.4% · 29th percentile
  2. 2026-10-19 16:32 UTCEPSS rescoreEPSS 0.4% · 29th percentile
  3. 2026-10-18 16:32 UTCEPSS rescoreEPSS 0.4% · 29th percentile
  4. 2026-10-18 03:34 UTCEchelonGraph re-scored
  5. 2026-10-17 16:34 UTCEPSS rescoreEPSS 0.4% · 29th percentile
  6. 2026-10-16 16:42 UTCEPSS rescoreEPSS 0.4% · 29th percentile
  7. 2026-10-15 16:32 UTCEPSS rescoreEPSS 0.4% · 29th percentile
  8. 2026-10-14 16:33 UTCEPSS rescoreEPSS 0.4% · 29th percentile
  9. 2026-10-13 16:34 UTCEPSS rescoreEPSS 0.4% · 29th percentile
  10. 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.4% · 29th percentile
  11. 2026-10-12 16:00 UTCEchelonGraph re-scored
  12. 2026-10-11 19:43 UTCEchelonGraph re-scored
  13. 2026-10-11 16:57 UTCEchelonGraph re-scored
  14. 2026-10-11 14:21 UTCEchelonGraph re-scored
  15. 2026-10-11 13:49 UTCEPSS rescoreEPSS 0.4% · 29th percentile
  16. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.4% · 29th percentile
  17. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.4% · 29th percentile
  18. 2026-10-08 17:12 UTCEPSS rescoreEPSS 0.4% · 29th percentile
  19. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.4% · 29th percentile
  20. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.4% · 28th percentile
  21. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.4% · 28th percentile
  22. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.4% · 28th percentile
  23. 2026-10-03 14:25 UTCEPSS rescoreEPSS 0.4% · 28th percentile
  24. 2026-10-03 09:39 UTCOSV refresh
  25. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.4% · 28th percentile
  26. 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.4% · 28th percentile
  27. 2026-09-28 13:51 UTCEPSS rescoreEPSS 0.4% · 28th percentile
  28. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.4% · 28th percentile
  29. 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.4% · 28th percentile
  30. 2026-09-26 00:27 UTCEPSS rescoreEPSS 0.4% · 28th percentile
  31. 2026-09-23 17:53 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  32. 2026-09-20 20:16 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  33. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  34. 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  35. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  36. 2026-09-14 04:36 UTCEchelonGraph re-scored
  37. 2026-09-13 16:47 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  38. 2026-09-11 14:53 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  39. 2026-09-10 09:35 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  40. 2026-09-08 22:01 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  41. 2026-09-07 16:01 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  42. 2026-09-06 13:47 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  43. 2026-09-04 05:06 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  44. 2026-09-02 14:12 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  45. 2026-09-01 13:54 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  46. 2026-09-01 04:40 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  47. 2026-08-31 00:55 UTCEchelonGraph re-scored
  48. 2026-08-30 19:17 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  49. 2026-08-30 01:22 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  50. 2026-08-28 21:41 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  51. 2026-08-27 14:25 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  52. 2026-08-26 14:46 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  53. 2026-08-25 13:49 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  54. 2026-08-25 00:50 UTCEchelonGraph re-scored
  55. 2026-08-23 11:14 UTCEchelonGraph re-scored
  56. 2026-08-23 00:19 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  57. 2026-08-21 23:49 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  58. 2026-08-21 08:34 UTCEchelonGraph re-scored
  59. 2026-08-20 22:55 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  60. 2026-08-20 09:19 UTCEchelonGraph re-scored
  61. 2026-08-19 17:04 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  62. 2026-08-18 13:48 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  63. 2026-08-17 13:47 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  64. 2026-08-17 00:46 UTCEchelonGraph re-scored
  65. 2026-08-16 14:56 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  66. 2026-08-16 02:14 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  67. 2026-08-16 00:36 UTCEchelonGraph re-scored
  68. 2026-08-15 01:30 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  69. 2026-08-13 22:21 UTCEchelonGraph re-scored
  70. 2026-08-13 22:00 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  71. 2026-08-12 19:17 UTCEchelonGraph re-scored
  72. 2026-08-12 13:51 UTCEPSS rescoreEPSS 0.2% · 13th percentile
  73. 2026-08-11 20:03 UTCEchelonGraph re-scored
  74. 2026-08-11 00:00 UTCEPSS rescoreEPSS 0.2% · 12th percentile
  75. 2026-08-09 17:11 UTCEchelonGraph re-scored

Frequently asked(5)

What is CVE-2026-49472?
CVE-2026-49472 is a medium-severity vulnerability; its CVE record was 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 1.11.0, FreeSWITCH includes a vulnerable function, PREFIX(prologTok)(), in…
When was the CVE record for CVE-2026-49472 published?
The CVE record for CVE-2026-49472 was published on June 9, 2026. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of July 23, 2026; the record at its source may have been updated since.
Is CVE-2026-49472 actively exploited?
CVE-2026-49472 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.2% probability of exploitation in the next 30 days (13th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-49472?
CVE-2026-49472 has a CVSS base score of 5.3 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-49472?
A fix for CVE-2026-49472 is available: update to the fixed version the vendor names in its advisory.

Dependency Blast Radius

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