CVE Explorer
CVE-2026-48045
Zeroconf is a pure Python implementation of multicast DNS service discovery. Prior to 0.149.12, AsyncListener.handle_query_or_defer retained every truncated TC-bit incoming query, each up to _MAX_MSG_ABSOLUTE = 8966 bytes, in self._deferred[addr] and armed a per-address timer in self._timers[addr] without capping the per-address list or distinct addr keys, allowing unauthenticated hosts on the local link over UDP/5353 (224.0.0.251 / ff02::fb) to spoof sources, grow _deferred and _timers, and cau
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0
Affected products and versions
1 source assertion{"product":"python-zeroconf","vendor":"python-zeroconf","versions":[{"status":"affected","version":"< 0.149.12"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:ae8950caedf56a22fa736c7f3e8fcb0af28df8a8584a77b37afd04ce69229b73 · sha256:6f7c67f3543e30ac… · /containers/cna/affected/0
Provider-owned CVSS observations
1 source assertion{"metric":{"attackComplexity":"LOW","attackVector":"ADJACENT_NETWORK","availabilityImpact":"HIGH","baseScore":6.5,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
- cve_program_cvelist_v5cvssurn:baitaphish:normalized-source-record:v2:ae8950caedf56a22fa736c7f3e8fcb0af28df8a8584a77b37afd04ce69229b73 · sha256:6f7c67f3543e30ac… · /containers/cna/metrics/0/cvssV3_1
CWE assertions
1 source assertion{"cweId":"CWE-770","description":"CWE-770: Allocation of Resources Without Limits or Throttling","lang":"en","type":"CWE"}
- cve_program_cvelist_v5cweurn:baitaphish:normalized-source-record:v2:ae8950caedf56a22fa736c7f3e8fcb0af28df8a8584a77b37afd04ce69229b73 · sha256:6f7c67f3543e30ac… · /containers/cna/problemTypes/0/descriptions/0
Source references
4 source assertions{"name":"https://github.com/python-zeroconf/python-zeroconf/commit/b22c8ff19c66c68907d220a4823c0950f4fa93f7","tags":["x_refsource_MISC"],"url":"https://github.com/python-zeroconf/python-zeroconf/commit/b22c8ff19c66c68907d220a4823c0950f4fa93f7"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:ae8950caedf56a22fa736c7f3e8fcb0af28df8a8584a77b37afd04ce69229b73 · sha256:6f7c67f3543e30ac… · /containers/cna/references/2
{"name":"https://github.com/python-zeroconf/python-zeroconf/pull/1751","tags":["x_refsource_MISC"],"url":"https://github.com/python-zeroconf/python-zeroconf/pull/1751"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:ae8950caedf56a22fa736c7f3e8fcb0af28df8a8584a77b37afd04ce69229b73 · sha256:6f7c67f3543e30ac… · /containers/cna/references/1
{"name":"https://github.com/python-zeroconf/python-zeroconf/releases/tag/0.149.12","tags":["x_refsource_MISC"],"url":"https://github.com/python-zeroconf/python-zeroconf/releases/tag/0.149.12"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:ae8950caedf56a22fa736c7f3e8fcb0af28df8a8584a77b37afd04ce69229b73 · sha256:6f7c67f3543e30ac… · /containers/cna/references/3
{"name":"https://github.com/python-zeroconf/python-zeroconf/security/advisories/GHSA-9663-mqmp-p9mm","tags":["x_refsource_CONFIRM"],"url":"https://github.com/python-zeroconf/python-zeroconf/security/advisories/GHSA-9663-mqmp-p9mm"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:ae8950caedf56a22fa736c7f3e8fcb0af28df8a8584a77b37afd04ce69229b73 · sha256:6f7c67f3543e30ac… · /containers/cna/references/0
Attribution and limitations
- CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →
Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.