CVE-2025-20139 (GCVE-0-2025-20139)
Vulnerability from cvelistv5 – Published: 2025-04-02 16:16 – Updated: 2025-04-02 16:33
VLAI?
Summary
A vulnerability in chat messaging features of Cisco Enterprise Chat and Email (ECE) could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition.
This vulnerability is due to improper validation of user-supplied input to chat entry points. An attacker could exploit this vulnerability by sending malicious requests to a messaging chat entry point in the affected application. A successful exploit could allow the attacker to cause the application to stop responding, resulting in a DoS condition. The application may not recover on its own and may need an administrator to manually restart services to recover.
Severity ?
7.5 (High)
CWE
- CWE-185 - Incorrect Regular Expression
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Cisco | Cisco Enterprise Chat and Email |
Affected:
11.5(1)
Affected: 11.6(1) Affected: 11.6(1)_ES2 Affected: 11.6(1)_ES3 Affected: 11.6(1)_ES4 Affected: 11.6(1)_ES5 Affected: 11.6(1)_ES6 Affected: 11.6(1)_ES10 Affected: 11.6(1)_ES11 Affected: 11.6(1)_ES7 Affected: 11.6(1)_ES8 Affected: 11.6(1)_ES9 Affected: 11.6(1)_ES9a Affected: 11.6(1)_ES12 Affected: 11.6(1)_ES12_ET1 Affected: 12.0(1) Affected: 12.0(1)_ES1 Affected: 12.0(1)_ES2 Affected: 12.0(1)_ES3 Affected: 12.0(1)_ES4 Affected: 12.0(1)_ES5 Affected: 12.0(1)_ES5a Affected: 12.0(1)_ES6 Affected: 12.0(1)_ES6_ET1 Affected: 12.0(1)_ES6_ET2 Affected: 12.0(1)_ES6_ET3 Affected: 12.0(1)_ES7 Affected: 12.0(1)_ES7_ET1 Affected: 12.5(1) Affected: 12.5(1)_ES1 Affected: 12.5(1)_ES2 Affected: 12.5(1)_ES3 Affected: 12.5(1)_ES3_ET1 Affected: 12.5(1)_ET1 Affected: 12.5(1)_ES4 Affected: 12.5(1)_ES3_ET2 Affected: 12.5(1)_ES4_ET1 Affected: 12.5(1)_ES5 Affected: 12.5(1)_ES5_ET1 Affected: 12.5(1)_ES6 Affected: 12.5(1)_ES7 Affected: 12.5(1)_ES8 Affected: 12.5(1)_ES8_ET1 Affected: 12.5(1)_ES3_ET3 Affected: 12.5(1)_ES5_ET2 Affected: 12.5(1)_ES6_ET1 Affected: 12.5(1)_ES4_ET2 Affected: 12.5(1)_ES7_ET1 Affected: 12.5(1)_ES9 Affected: 12.6(1) Affected: 12.6(1)_ET1 Affected: 12.6(1)_ET2 Affected: 12.6(1)_ES1 Affected: 12.6(1)_ET3 Affected: 12.6(1)_ES1_ET1 Affected: 12.6(1)_ES2 Affected: 12.6(1)_ES3 Affected: 12.6(1)_ES4 Affected: 12.6(1)_ES4_ET1 Affected: 12.6(1)_ES5 Affected: 12.6(1)_ES5_ET1 Affected: 12.6(1)_ES5_ET2 Affected: 12.6(1)_ES6 Affected: 12.6(1)_ES6_ET1 Affected: 12.6(1)_ES6_ET2 Affected: 12.6(1)_ES7 Affected: 12.6(1)_ES8 Affected: 12.6(1)_ES4_ET2 Affected: 12.6(1)_ES3_ET3 Affected: 12.6(1)_ES2_ET5 Affected: 12.6(1)_ES1_ET2 Affected: 12.6(1)_ES8_ET1 Affected: 12.6(1)_ES7_ET1 Affected: 12.6(1)_ES6_ET3 Affected: 12.6(1)_ES5_ET3 Affected: 12.6(1)_ES8_ET2 Affected: 12.6(1)_ES9 Affected: 12.6(1)_ES9_ET1 Affected: 12.6(1)_ES9_ET2 Affected: 12.6(1)_ES9_ET3 Affected: 12.6_ES2_ET1 Affected: 12.6_ES2_ET2 Affected: 12.6_ES2_ET3 Affected: 12.6_ES2_ET4 Affected: 12.6_ES3_ET1 Affected: 12.6_ES3_ET2 |
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"id": "CVE-2025-20139",
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{
"Automatable": "yes"
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{
"Technical Impact": "partial"
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"role": "CISA Coordinator",
"timestamp": "2025-04-02T16:33:38.164036Z",
"version": "2.0.3"
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"cna": {
"affected": [
{
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"vendor": "Cisco",
"versions": [
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"status": "affected",
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{
"status": "affected",
"version": "11.6(1)"
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{
"status": "affected",
"version": "11.6(1)_ES2"
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"status": "affected",
"version": "11.6(1)_ES3"
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{
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{
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"status": "affected",
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"status": "affected",
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{
"status": "affected",
"version": "12.5(1)_ES4_ET1"
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{
"status": "affected",
"version": "12.5(1)_ES5"
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{
"status": "affected",
"version": "12.5(1)_ES5_ET1"
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{
"status": "affected",
"version": "12.5(1)_ES6"
},
{
"status": "affected",
"version": "12.5(1)_ES7"
},
{
"status": "affected",
"version": "12.5(1)_ES8"
},
{
"status": "affected",
"version": "12.5(1)_ES8_ET1"
},
{
"status": "affected",
"version": "12.5(1)_ES3_ET3"
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{
"status": "affected",
"version": "12.5(1)_ES5_ET2"
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{
"status": "affected",
"version": "12.5(1)_ES6_ET1"
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{
"status": "affected",
"version": "12.5(1)_ES4_ET2"
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{
"status": "affected",
"version": "12.5(1)_ES7_ET1"
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{
"status": "affected",
"version": "12.5(1)_ES9"
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{
"status": "affected",
"version": "12.6(1)"
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{
"status": "affected",
"version": "12.6(1)_ET1"
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{
"status": "affected",
"version": "12.6(1)_ET2"
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{
"status": "affected",
"version": "12.6(1)_ES1"
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{
"status": "affected",
"version": "12.6(1)_ET3"
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{
"status": "affected",
"version": "12.6(1)_ES1_ET1"
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{
"status": "affected",
"version": "12.6(1)_ES2"
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{
"status": "affected",
"version": "12.6(1)_ES3"
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{
"status": "affected",
"version": "12.6(1)_ES4"
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{
"status": "affected",
"version": "12.6(1)_ES4_ET1"
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{
"status": "affected",
"version": "12.6(1)_ES5"
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{
"status": "affected",
"version": "12.6(1)_ES5_ET1"
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{
"status": "affected",
"version": "12.6(1)_ES5_ET2"
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{
"status": "affected",
"version": "12.6(1)_ES6"
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{
"status": "affected",
"version": "12.6(1)_ES6_ET1"
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{
"status": "affected",
"version": "12.6(1)_ES6_ET2"
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{
"status": "affected",
"version": "12.6(1)_ES7"
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{
"status": "affected",
"version": "12.6(1)_ES8"
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{
"status": "affected",
"version": "12.6(1)_ES4_ET2"
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{
"status": "affected",
"version": "12.6(1)_ES3_ET3"
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{
"status": "affected",
"version": "12.6(1)_ES2_ET5"
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{
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"version": "12.6(1)_ES6_ET3"
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"version": "12.6(1)_ES5_ET3"
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"status": "affected",
"version": "12.6(1)_ES8_ET2"
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"status": "affected",
"version": "12.6(1)_ES9"
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"status": "affected",
"version": "12.6(1)_ES9_ET1"
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"status": "affected",
"version": "12.6(1)_ES9_ET2"
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"status": "affected",
"version": "12.6(1)_ES9_ET3"
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"descriptions": [
{
"lang": "en",
"value": "A vulnerability in chat messaging features of Cisco Enterprise Chat and Email (ECE) could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition.\r\n\r This vulnerability is due to improper validation of user-supplied input to chat entry points. An attacker could exploit this vulnerability by sending malicious requests to a messaging chat entry point in the affected application. A successful exploit could allow the attacker to cause the application to stop responding, resulting in a DoS condition. The application may not recover on its own and may need an administrator to manually restart services to recover."
}
],
"exploits": [
{
"lang": "en",
"value": "The Cisco PSIRT is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory."
}
],
"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"
},
"format": "cvssV3_1"
}
],
"problemTypes": [
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"descriptions": [
{
"cweId": "CWE-185",
"description": "Incorrect Regular Expression",
"lang": "en",
"type": "cwe"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2025-04-02T16:16:17.546Z",
"orgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
"shortName": "cisco"
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"references": [
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"name": "cisco-sa-ece-dos-tC6m9GZ8",
"url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ece-dos-tC6m9GZ8"
}
],
"source": {
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"defects": [
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"discovery": "EXTERNAL"
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}
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"cveMetadata": {
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"cveId": "CVE-2025-20139",
"datePublished": "2025-04-02T16:16:17.546Z",
"dateReserved": "2024-10-10T19:15:13.213Z",
"dateUpdated": "2025-04-02T16:33:45.699Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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