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4 vulnerabilities found for by ISC
CVE-2025-11232 (GCVE-0-2025-11232)
Vulnerability from cvelistv5
Published
2025-10-29 18:02
Modified
2025-10-29 18:22
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-823 - Use of Out-of-range Pointer Offset
Summary
To trigger the issue, three configuration parameters must have specific settings: "hostname-char-set" must be left at the default setting, which is "[^A-Za-z0-9.-]"; "hostname-char-replacement" must be empty (the default); and "ddns-qualifying-suffix" must *NOT* be empty (the default is empty). DDNS updates do not need to be enabled for this issue to manifest. A client that sends certain option content would then cause kea-dhcp4 to exit unexpectedly.
This issue affects Kea versions 3.0.1 through 3.0.1 and 3.1.1 through 3.1.2.
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
|||||
Impacted products
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"credits": [
{
"lang": "en",
"value": "ISC would like to thank Sini\u0161a Uskokovi\u0107 and Ralf Steuer from Vienna University of Economics and Business for bringing this vulnerability to our attention."
}
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}
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}
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"attackVector": "NETWORK",
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"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",
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},
"title": "Invalid characters cause assert",
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CVE-2025-40780 (GCVE-0-2025-40780)
Vulnerability from cvelistv5
Published
2025-10-22 15:48
Modified
2025-10-22 17:27
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-341 - Predictable from Observable State
Summary
In specific circumstances, due to a weakness in the Pseudo Random Number Generator (PRNG) that is used, it is possible for an attacker to predict the source port and query ID that BIND will use.
This issue affects BIND 9 versions 9.16.0 through 9.16.50, 9.18.0 through 9.18.39, 9.20.0 through 9.20.13, 9.21.0 through 9.21.12, 9.16.8-S1 through 9.16.50-S1, 9.18.11-S1 through 9.18.39-S1, and 9.20.9-S1 through 9.20.13-S1.
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
|||||
Impacted products
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"status": "affected",
"version": "9.20.9-S1",
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}
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"credits": [
{
"lang": "en",
"value": "ISC would like to thank Prof. Amit Klein and Omer Ben Simhon from Hebrew University of Jerusalem for bringing this vulnerability to our attention."
}
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"value": "BIND can be tricked into caching attacker responses, if the spoofing is successful."
}
]
}
],
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"baseScore": 8.6,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "CHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N",
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CVE-2025-40778 (GCVE-0-2025-40778)
Vulnerability from cvelistv5
Published
2025-10-22 15:47
Modified
2025-10-27 13:03
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-349 - Acceptance of Extraneous Untrusted Data With Trusted Data
Summary
Under certain circumstances, BIND is too lenient when accepting records from answers, allowing an attacker to inject forged data into the cache.
This issue affects BIND 9 versions 9.11.0 through 9.16.50, 9.18.0 through 9.18.39, 9.20.0 through 9.20.13, 9.21.0 through 9.21.12, 9.11.3-S1 through 9.16.50-S1, 9.18.11-S1 through 9.18.39-S1, and 9.20.9-S1 through 9.20.13-S1.
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
|||||
Impacted products
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"timestamp": "2025-10-27T13:03:19.678014Z",
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},
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}
],
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"value": "ISC would like to thank Yuxiao Wu, Yunyi Zhang, Baojun Liu, and Haixin Duan from Tsinghua University for bringing this vulnerability to our attention."
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"baseScore": 8.6,
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"integrityImpact": "HIGH",
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"scope": "CHANGED",
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"vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N",
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CVE-2025-8677 (GCVE-0-2025-8677)
Vulnerability from cvelistv5
Published
2025-10-22 15:43
Modified
2025-10-22 17:29
Severity ?
VLAI Severity ?
EPSS score ?
CWE
- CWE-405 - Asymmetric Resource Consumption (Amplification)
Summary
Querying for records within a specially crafted zone containing certain malformed DNSKEY records can lead to CPU exhaustion.
This issue affects BIND 9 versions 9.18.0 through 9.18.39, 9.20.0 through 9.20.13, 9.21.0 through 9.21.12, 9.18.11-S1 through 9.18.39-S1, and 9.20.9-S1 through 9.20.13-S1.
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
|||||
Impacted products
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"timestamp": "2025-10-22T17:29:14.290863Z",
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},
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},
"title": "CISA ADP Vulnrichment"
}
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"product": "BIND 9",
"vendor": "ISC",
"versions": [
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"lessThanOrEqual": "9.18.39",
"status": "affected",
"version": "9.18.0",
"versionType": "custom"
},
{
"lessThanOrEqual": "9.20.13",
"status": "affected",
"version": "9.20.0",
"versionType": "custom"
},
{
"lessThanOrEqual": "9.21.12",
"status": "affected",
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"versionType": "custom"
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"lessThanOrEqual": "9.18.39-S1",
"status": "affected",
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"lessThanOrEqual": "9.20.13-S1",
"status": "affected",
"version": "9.20.9-S1",
"versionType": "custom"
}
]
}
],
"credits": [
{
"lang": "en",
"value": "ISC would like to thank Zuyao Xu and Xiang Li from the All-in-One Security and Privacy Laboratory at Nankai University for bringing this vulnerability to our attention."
}
],
"datePublic": "2025-10-22T00:00:00.000Z",
"descriptions": [
{
"lang": "en",
"value": "Querying for records within a specially crafted zone containing certain malformed DNSKEY records can lead to CPU exhaustion.\nThis issue affects BIND 9 versions 9.18.0 through 9.18.39, 9.20.0 through 9.20.13, 9.21.0 through 9.21.12, 9.18.11-S1 through 9.18.39-S1, and 9.20.9-S1 through 9.20.13-S1."
}
],
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{
"lang": "en",
"value": "We are not aware of any active exploits."
}
],
"impacts": [
{
"descriptions": [
{
"lang": "en",
"value": "An attacker could overwhelm the server, significantly impacting performance and leading to denial of service for legitimate clients."
}
]
}
],
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"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "NONE",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
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"url": "https://kb.isc.org/docs/cve-2025-8677"
}
],
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{
"lang": "en",
"value": "Upgrade to the patched release most closely related to your current version of BIND 9: 9.18.41, 9.20.15, 9.21.14, 9.18.41-S1, or 9.20.15-S1."
}
],
"source": {
"discovery": "EXTERNAL"
},
"title": "Resource exhaustion via malformed DNSKEY handling",
"workarounds": [
{
"lang": "en",
"value": "No workarounds known."
}
],
"x_generator": {
"engine": "cvelib 1.8.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "404fd4d2-a609-4245-b543-2c944a302a22",
"assignerShortName": "isc",
"cveId": "CVE-2025-8677",
"datePublished": "2025-10-22T15:43:10.369Z",
"dateReserved": "2025-08-06T17:32:34.755Z",
"dateUpdated": "2025-10-22T17:29:39.128Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.1"
}