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CVE-2026-49475

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, a STUN packet whose declared attribute length is shorter than the structure the parser casts to causes the parser to read and write past the end of the attribute, producing an out-of-bounds memory access on the per-leg media buffer. This issue has been patched in version 1.11.0.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:6a7d5e24eff85c0a8a585bc9f600e27c7af1213688436c0ebfcd8cf35e9d800e
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

cwe · 3 assertions

{"cweId":"CWE-125","description":"CWE-125: Out-of-bounds Read","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:4df28684401f017c7b981b10ab5edf86527f78e5d1ff6052fdfe9f20c1a22773 · sha256:5f899f12854f69e2… · /containers/cna/problemTypes/1/descriptions/0

{"cweId":"CWE-20","description":"CWE-20: Improper Input Validation","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:4df28684401f017c7b981b10ab5edf86527f78e5d1ff6052fdfe9f20c1a22773 · sha256:5f899f12854f69e2… · /containers/cna/problemTypes/0/descriptions/0

{"cweId":"CWE-787","description":"CWE-787: Out-of-bounds Write","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:4df28684401f017c7b981b10ab5edf86527f78e5d1ff6052fdfe9f20c1a22773 · sha256:5f899f12854f69e2… · /containers/cna/problemTypes/2/descriptions/0

Affected products and versions

1 source assertion
{"product":"freeswitch","vendor":"signalwire","versions":[{"status":"affected","version":"< 1.11.0"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:4df28684401f017c7b981b10ab5edf86527f78e5d1ff6052fdfe9f20c1a22773 · sha256:5f899f12854f69e2… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":7.5,"baseSeverity":"HIGH","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:4df28684401f017c7b981b10ab5edf86527f78e5d1ff6052fdfe9f20c1a22773 · sha256:5f899f12854f69e2… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

3 source assertions
{"cweId":"CWE-125","description":"CWE-125: Out-of-bounds Read","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:4df28684401f017c7b981b10ab5edf86527f78e5d1ff6052fdfe9f20c1a22773 · sha256:5f899f12854f69e2… · /containers/cna/problemTypes/1/descriptions/0
{"cweId":"CWE-20","description":"CWE-20: Improper Input Validation","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:4df28684401f017c7b981b10ab5edf86527f78e5d1ff6052fdfe9f20c1a22773 · sha256:5f899f12854f69e2… · /containers/cna/problemTypes/0/descriptions/0
{"cweId":"CWE-787","description":"CWE-787: Out-of-bounds Write","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:4df28684401f017c7b981b10ab5edf86527f78e5d1ff6052fdfe9f20c1a22773 · sha256:5f899f12854f69e2… · /containers/cna/problemTypes/2/descriptions/0

Source references

2 source assertions
{"name":"https://github.com/signalwire/freeswitch/releases/tag/v1.11.0","tags":["x_refsource_MISC"],"url":"https://github.com/signalwire/freeswitch/releases/tag/v1.11.0"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:4df28684401f017c7b981b10ab5edf86527f78e5d1ff6052fdfe9f20c1a22773 · sha256:5f899f12854f69e2… · /containers/cna/references/1
{"name":"https://github.com/signalwire/freeswitch/security/advisories/GHSA-9j6h-hc95-q926","tags":["x_refsource_CONFIRM"],"url":"https://github.com/signalwire/freeswitch/security/advisories/GHSA-9j6h-hc95-q926"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:4df28684401f017c7b981b10ab5edf86527f78e5d1ff6052fdfe9f20c1a22773 · sha256:5f899f12854f69e2… · /containers/cna/references/0

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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