CVE Explorer

CVE-2026-49841

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, the mod_verto HTTP request handler allocates a fixed 2 MiB buffer for a POST application/x-www-form-urlencoded body but accepts Content-Length up to just under 10 MiB. The body-read loop is bounded by Content-Length rather than the buffer size, producing an attacker-controlled heap overflow

Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:8e22c7877f89d96087df95500f9cb96ec4bbd4088a30f446054bd31eed843527

Known exploited

Not asserted

Disputed

Stale source

Conflicts

Preserved source conflicts

No provider value was silently selected as the winner.

cwe · 2 assertions

{"cweId":"CWE-131","description":"CWE-131: Incorrect Calculation of Buffer Size","lang":"en","type":"CWE"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:18287a8b7db254231e9b101b9b98ee39eda37c8bff541ea7ea7ca3b279aef01c · sha256:d9b9dc7b5e314297… · /containers/cna/problemTypes/1/descriptions/0

{"cweId":"CWE-122","description":"CWE-122: Heap-based Buffer Overflow","lang":"en","type":"CWE"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:18287a8b7db254231e9b101b9b98ee39eda37c8bff541ea7ea7ca3b279aef01c · sha256:d9b9dc7b5e314297… · /containers/cna/problemTypes/0/descriptions/0

Affected products and versions

1 source assertion

{"product":"freeswitch","vendor":"signalwire","versions":[{"status":"affected","version":"< 1.11.1"}]}

cve_program_cvelist_v5affected
urn:baitaphish:normalized-source-record:v2:18287a8b7db254231e9b101b9b98ee39eda37c8bff541ea7ea7ca3b279aef01c · sha256:d9b9dc7b5e314297… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion

{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":9.8,"baseSeverity":"CRITICAL","confidentialityImpact":"HIGH","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"metric_type":"cvssV3_1"}

cve_program_cvelist_v5cvss
urn:baitaphish:normalized-source-record:v2:18287a8b7db254231e9b101b9b98ee39eda37c8bff541ea7ea7ca3b279aef01c · sha256:d9b9dc7b5e314297… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

2 source assertions

{"cweId":"CWE-131","description":"CWE-131: Incorrect Calculation of Buffer Size","lang":"en","type":"CWE"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:18287a8b7db254231e9b101b9b98ee39eda37c8bff541ea7ea7ca3b279aef01c · sha256:d9b9dc7b5e314297… · /containers/cna/problemTypes/1/descriptions/0

{"cweId":"CWE-122","description":"CWE-122: Heap-based Buffer Overflow","lang":"en","type":"CWE"}

cve_program_cvelist_v5cwe
urn:baitaphish:normalized-source-record:v2:18287a8b7db254231e9b101b9b98ee39eda37c8bff541ea7ea7ca3b279aef01c · sha256:d9b9dc7b5e314297… · /containers/cna/problemTypes/0/descriptions/0

Source references

2 source assertions

{"name":"https://github.com/signalwire/freeswitch/releases/tag/v1.11.1","tags":["x_refsource_MISC"],"url":"https://github.com/signalwire/freeswitch/releases/tag/v1.11.1"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:18287a8b7db254231e9b101b9b98ee39eda37c8bff541ea7ea7ca3b279aef01c · sha256:d9b9dc7b5e314297… · /containers/cna/references/1

{"name":"https://github.com/signalwire/freeswitch/security/advisories/GHSA-wfrq-qvg2-f88f","tags":["x_refsource_CONFIRM"],"url":"https://github.com/signalwire/freeswitch/security/advisories/GHSA-wfrq-qvg2-f88f"}

cve_program_cvelist_v5reference
urn:baitaphish:normalized-source-record:v2:18287a8b7db254231e9b101b9b98ee39eda37c8bff541ea7ea7ca3b279aef01c · sha256:d9b9dc7b5e314297… · /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.

← Back to CVE Explorer