CVE-2026-62642 (GCVE-0-2026-62642)
Vulnerability from cvelistv5 – Published: 2026-07-14 15:49 – Updated: 2026-07-14 17:18
VLAI
EPSS
VEX
Summary
In Roundcube Webmail before 1.6.17 and 1.7.x before 1.7.2, an infinite loop was discovered in the TNEF decoder, which may lead to denial of service upon opening an email with a TNEF attachment.
Severity
4.3 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')
Assigner
References
7 references
Impacted products
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-62642",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-07-14T17:17:53.646785Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-07-14T17:18:18.192Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
}
],
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Webmail",
"vendor": "Roundcube",
"versions": [
{
"lessThan": "1.6.17",
"status": "affected",
"version": "1.6.0",
"versionType": "semver"
},
{
"lessThan": "1.7.2",
"status": "affected",
"version": "1.7.0",
"versionType": "semver"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:a:roundcube:webmail:*:*:*:*:*:*:*:*",
"versionEndExcluding": "1.6.17",
"versionStartIncluding": "1.6.0",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:roundcube:webmail:*:*:*:*:*:*:*:*",
"versionEndExcluding": "1.7.2",
"versionStartIncluding": "1.7.0",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In Roundcube Webmail before 1.6.17 and 1.7.x before 1.7.2, an infinite loop was discovered in the TNEF decoder, which may lead to denial of service upon opening an email with a TNEF attachment."
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "LOW",
"baseScore": 4.3,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L",
"version": "3.1"
},
"format": "CVSS",
"scenarios": [
{
"lang": "en",
"value": "GENERAL"
}
]
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-835",
"description": "CWE-835 Loop with Unreachable Exit Condition (\u0027Infinite Loop\u0027)",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-07-14T15:49:17.798Z",
"orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"shortName": "mitre"
},
"references": [
{
"url": "https://roundcube.net/news/2026/07/05/security-updates-1.6.17-and-1.7.2"
},
{
"url": "https://github.com/roundcube/roundcubemail/releases/tag/1.7.2"
},
{
"url": "https://github.com/roundcube/roundcubemail/commit/877269c79359d959a94f13c9070cab0f3389c193"
},
{
"url": "https://github.com/roundcube/roundcubemail/commit/fb952956c6eaf29e963f1a718d028d66e7957ce0"
},
{
"url": "https://github.com/roundcube/roundcubemail/releases/tag/1.6.17"
},
{
"url": "https://github.com/roundcube/roundcubemail/commit/a007321346380136b3de2bd75b486b04f63c0d38"
},
{
"url": "https://github.com/roundcube/roundcubemail/commit/132ac8dd5a55c8466be12de1daf84355697ffa89"
}
],
"x_generator": {
"engine": "CVE-Request-form 0.0.1"
}
}
},
"cveMetadata": {
"assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
"assignerShortName": "mitre",
"cveId": "CVE-2026-62642",
"datePublished": "2026-07-14T15:49:17.798Z",
"dateReserved": "2026-07-14T15:49:17.389Z",
"dateUpdated": "2026-07-14T17:18:18.192Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"nvd": "{\"cve\":{\"id\":\"CVE-2026-62642\",\"sourceIdentifier\":\"cve@mitre.org\",\"published\":\"2026-07-14T16:17:04.530\",\"lastModified\":\"2026-07-14T18:18:47.140\",\"vulnStatus\":\"Received\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"In Roundcube Webmail before 1.6.17 and 1.7.x before 1.7.2, an infinite loop was discovered in the TNEF decoder, which may lead to denial of service upon opening an email with a TNEF attachment.\"}],\"affected\":[{\"source\":\"cve@mitre.org\",\"affectedData\":[{\"vendor\":\"Roundcube\",\"product\":\"Webmail\",\"defaultStatus\":\"unaffected\",\"versions\":[{\"version\":\"1.6.0\",\"lessThan\":\"1.6.17\",\"versionType\":\"semver\",\"status\":\"affected\"},{\"version\":\"1.7.0\",\"lessThan\":\"1.7.2\",\"versionType\":\"semver\",\"status\":\"affected\"}]}]}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"cve@mitre.org\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L\",\"baseScore\":4.3,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"REQUIRED\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"LOW\"},\"exploitabilityScore\":2.8,\"impactScore\":1.4}],\"ssvcV203\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"ssvcData\":{\"timestamp\":\"2026-07-14T17:17:53.646785Z\",\"id\":\"CVE-2026-62642\",\"options\":[{\"exploitation\":\"none\"},{\"automatable\":\"no\"},{\"technicalImpact\":\"partial\"}],\"role\":\"CISA Coordinator\",\"version\":\"2.0.3\"}}]},\"weaknesses\":[{\"source\":\"cve@mitre.org\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-835\"}]}],\"references\":[{\"url\":\"https://github.com/roundcube/roundcubemail/commit/132ac8dd5a55c8466be12de1daf84355697ffa89\",\"source\":\"cve@mitre.org\"},{\"url\":\"https://github.com/roundcube/roundcubemail/commit/877269c79359d959a94f13c9070cab0f3389c193\",\"source\":\"cve@mitre.org\"},{\"url\":\"https://github.com/roundcube/roundcubemail/commit/a007321346380136b3de2bd75b486b04f63c0d38\",\"source\":\"cve@mitre.org\"},{\"url\":\"https://github.com/roundcube/roundcubemail/commit/fb952956c6eaf29e963f1a718d028d66e7957ce0\",\"source\":\"cve@mitre.org\"},{\"url\":\"https://github.com/roundcube/roundcubemail/releases/tag/1.6.17\",\"source\":\"cve@mitre.org\"},{\"url\":\"https://github.com/roundcube/roundcubemail/releases/tag/1.7.2\",\"source\":\"cve@mitre.org\"},{\"url\":\"https://roundcube.net/news/2026/07/05/security-updates-1.6.17-and-1.7.2\",\"source\":\"cve@mitre.org\"}]}}",
"redhat_vex": {
"current_release_date": "2026-07-14T18:05:01+00:00",
"cve": "CVE-2026-62642",
"id": "CVE-2026-62642",
"initial_release_date": "2026-07-14T15:49:17.798000+00:00",
"product_status:known_not_affected": "1",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "roundcubemail: Roundcube Webmail: Denial of Service via infinite loop in TNEF decoder",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-62642.json",
"version": "3"
},
"vulnrichment": {
"containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-62642\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-07-14T17:17:53.646785Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-07-14T17:18:07.614Z\"}}], \"cna\": {\"metrics\": [{\"format\": \"CVSS\", \"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 4.3, \"attackVector\": \"NETWORK\", \"baseSeverity\": \"MEDIUM\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L\", \"integrityImpact\": \"NONE\", \"userInteraction\": \"REQUIRED\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"LOW\", \"privilegesRequired\": \"NONE\", \"confidentialityImpact\": \"NONE\"}, \"scenarios\": [{\"lang\": \"en\", \"value\": \"GENERAL\"}]}], \"affected\": [{\"vendor\": \"Roundcube\", \"product\": \"Webmail\", \"versions\": [{\"status\": \"affected\", \"version\": \"1.6.0\", \"lessThan\": \"1.6.17\", \"versionType\": \"semver\"}, {\"status\": \"affected\", \"version\": \"1.7.0\", \"lessThan\": \"1.7.2\", \"versionType\": \"semver\"}], \"defaultStatus\": \"unaffected\"}], \"references\": [{\"url\": \"https://roundcube.net/news/2026/07/05/security-updates-1.6.17-and-1.7.2\"}, {\"url\": \"https://github.com/roundcube/roundcubemail/releases/tag/1.7.2\"}, {\"url\": \"https://github.com/roundcube/roundcubemail/commit/877269c79359d959a94f13c9070cab0f3389c193\"}, {\"url\": \"https://github.com/roundcube/roundcubemail/commit/fb952956c6eaf29e963f1a718d028d66e7957ce0\"}, {\"url\": \"https://github.com/roundcube/roundcubemail/releases/tag/1.6.17\"}, {\"url\": \"https://github.com/roundcube/roundcubemail/commit/a007321346380136b3de2bd75b486b04f63c0d38\"}, {\"url\": \"https://github.com/roundcube/roundcubemail/commit/132ac8dd5a55c8466be12de1daf84355697ffa89\"}], \"x_generator\": {\"engine\": \"CVE-Request-form 0.0.1\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"In Roundcube Webmail before 1.6.17 and 1.7.x before 1.7.2, an infinite loop was discovered in the TNEF decoder, which may lead to denial of service upon opening an email with a TNEF attachment.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-835\", \"description\": \"CWE-835 Loop with Unreachable Exit Condition (\u0027Infinite Loop\u0027)\"}]}], \"cpeApplicability\": [{\"nodes\": [{\"negate\": false, \"cpeMatch\": [{\"criteria\": \"cpe:2.3:a:roundcube:webmail:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"1.6.17\", \"versionStartIncluding\": \"1.6.0\"}, {\"criteria\": \"cpe:2.3:a:roundcube:webmail:*:*:*:*:*:*:*:*\", \"vulnerable\": true, \"versionEndExcluding\": \"1.7.2\", \"versionStartIncluding\": \"1.7.0\"}], \"operator\": \"OR\"}]}], \"providerMetadata\": {\"orgId\": \"8254265b-2729-46b6-b9e3-3dfca2d5bfca\", \"shortName\": \"mitre\", \"dateUpdated\": \"2026-07-14T15:49:17.798Z\"}}}",
"cveMetadata": "{\"cveId\": \"CVE-2026-62642\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-07-14T17:18:18.192Z\", \"dateReserved\": \"2026-07-14T15:49:17.389Z\", \"assignerOrgId\": \"8254265b-2729-46b6-b9e3-3dfca2d5bfca\", \"datePublished\": \"2026-07-14T15:49:17.798Z\", \"assignerShortName\": \"mitre\"}",
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
}
}
Loading…
Loading…
Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
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.
Loading…
Loading…