Vulnerability details
CVE-2025-11232
ISC Kea
Invalid characters cause assert
CVSS 3.1
7.5High
Official description
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.
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 7.5High | 3.1 | CVEProject cvelistV5 (CNA) (isc) | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| ISC | Kea | 3.0.1 ≤ v ≤ 3.0.1 | CVEProject cvelistV5 (CNA) |
| ISC | Kea | 3.1.1 ≤ v ≤ 3.1.2 | CVEProject cvelistV5 (CNA) |
References and advisories
2
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Details
- Published
- 2025-10-29
- Last updated
- 2025-11-05
- State
- Published
- Assigner (CNA)
- isc
Exploit prediction (EPSS)
0.42%
Probability of exploitation in 30 days
36.6%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- Yes
- Exploitation
- None
- Technical impact
- Partial
Weaknesses (CWE)
- CWE-823Use of Out-of-range Pointer Offset