CVE-2025-61601 (GCVE-0-2025-61601)
Vulnerability from cvelistv5
Published
2025-10-09 20:29
Modified
2025-10-09 20:29
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-703 - Improper Check or Handling of Exceptional Conditions
Summary
BigBlueButton is an open-source virtual classroom. A Denial of Service (DoS) vulnerability in versions prior to 3.0.13 allows any authenticated user to freeze or crash the entire server by abusing the polling feature's `Choices` response type. By submitting a malicious payload with a massive array in the `answerIds` field, the attacker can cause the current meeting — and potentially all meetings on the server — to become unresponsive. Version 3.0.13 contains a patch. No known workarounds are available.
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| bigbluebutton | bigbluebutton |
Version: < 3.0.13 |
{
"containers": {
"cna": {
"affected": [
{
"product": "bigbluebutton",
"vendor": "bigbluebutton",
"versions": [
{
"status": "affected",
"version": "\u003c 3.0.13"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "BigBlueButton is an open-source virtual classroom. A Denial of Service (DoS) vulnerability in versions prior to 3.0.13 allows any authenticated user to freeze or crash the entire server by abusing the polling feature\u0027s `Choices` response type. By submitting a malicious payload with a massive array in the `answerIds` field, the attacker can cause the current meeting \u2014 and potentially all meetings on the server \u2014 to become unresponsive. Version 3.0.13 contains a patch. No known workarounds are available."
}
],
"metrics": [
{
"cvssV3_1": {
"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"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-703",
"description": "CWE-703: Improper Check or Handling of Exceptional Conditions",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2025-10-09T20:29:25.006Z",
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M"
},
"references": [
{
"name": "https://github.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-73j3-v3fq-fqx5",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-73j3-v3fq-fqx5"
},
{
"name": "https://github.com/bigbluebutton/bigbluebutton/pull/23662",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/bigbluebutton/bigbluebutton/pull/23662"
},
{
"name": "https://www.youtube.com/watch?v=BwROSVIYjOY",
"tags": [
"x_refsource_MISC"
],
"url": "https://www.youtube.com/watch?v=BwROSVIYjOY"
}
],
"source": {
"advisory": "GHSA-73j3-v3fq-fqx5",
"discovery": "UNKNOWN"
},
"title": "BigBlueButton vulnerable to DoS via PollSubmitVote GraphQL mutation"
}
},
"cveMetadata": {
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"assignerShortName": "GitHub_M",
"cveId": "CVE-2025-61601",
"datePublished": "2025-10-09T20:29:25.006Z",
"dateReserved": "2025-09-26T16:25:25.151Z",
"dateUpdated": "2025-10-09T20:29:25.006Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1",
"vulnerability-lookup:meta": {
"nvd": "{\"cve\":{\"id\":\"CVE-2025-61601\",\"sourceIdentifier\":\"security-advisories@github.com\",\"published\":\"2025-10-09T21:15:39.477\",\"lastModified\":\"2025-10-09T21:15:39.477\",\"vulnStatus\":\"Received\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"BigBlueButton is an open-source virtual classroom. A Denial of Service (DoS) vulnerability in versions prior to 3.0.13 allows any authenticated user to freeze or crash the entire server by abusing the polling feature\u0027s `Choices` response type. By submitting a malicious payload with a massive array in the `answerIds` field, the attacker can cause the current meeting \u2014 and potentially all meetings on the server \u2014 to become unresponsive. Version 3.0.13 contains a patch. No known workarounds are available.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"security-advisories@github.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H\",\"baseScore\":7.5,\"baseSeverity\":\"HIGH\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":3.9,\"impactScore\":3.6}]},\"weaknesses\":[{\"source\":\"security-advisories@github.com\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-703\"}]}],\"references\":[{\"url\":\"https://github.com/bigbluebutton/bigbluebutton/pull/23662\",\"source\":\"security-advisories@github.com\"},{\"url\":\"https://github.com/bigbluebutton/bigbluebutton/security/advisories/GHSA-73j3-v3fq-fqx5\",\"source\":\"security-advisories@github.com\"},{\"url\":\"https://www.youtube.com/watch?v=BwROSVIYjOY\",\"source\":\"security-advisories@github.com\"}]}}"
}
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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