CVE Explorer
CVE-2026-45252
When a fusefs file system implements extended attributes, the kernel may send a FUSE_LISTXATTR message to the userspace daemon to retrieve the list of extended attributes for a given file. The FUSE protocol requires the daemon to return a packed list of NUL-terminated strings. The fusefs kernel module calls strlen() on this daemon-supplied buffer without first verifying that the entire list is NUL-terminated.
If a malicious daemon sends a non-NUL-terminated list, the fusefs kernel module may
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0
Affected products and versions
1 source assertion{"defaultStatus":"unknown","modules":["fusefs"],"product":"FreeBSD","vendor":"FreeBSD","versions":[{"lessThan":"p9","status":"affected","version":"15.0-RELEASE","versionType":"release"},{"lessThan":"p5","status":"affected","version":"14.4-RELEASE","versionType":"release"},{"lessThan":"p14","status":"affected","version":"14.3-RELEASE","versionType":"release"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:bf730d12e6280251b67c9512476a1901ffdd10b41509ec7f5fd7eed38617fa4d · sha256:130ee59eae10b1e3… · /containers/cna/affected/0
Provider-owned CVSS observations
1 source assertion{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":5.5,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"NONE","privilegesRequired":"HIGH","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:N/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
- cve_program_cvelist_v5cvssurn:baitaphish:normalized-source-record:v2:bf730d12e6280251b67c9512476a1901ffdd10b41509ec7f5fd7eed38617fa4d · sha256:130ee59eae10b1e3… · /containers/adp/0/metrics/0/cvssV3_1
CWE assertions
1 source assertion{"cweId":"CWE-122","description":"CWE-122: Heap-based Buffer Overflow","lang":"en","type":"CWE"}
- cve_program_cvelist_v5cweurn:baitaphish:normalized-source-record:v2:bf730d12e6280251b67c9512476a1901ffdd10b41509ec7f5fd7eed38617fa4d · sha256:130ee59eae10b1e3… · /containers/cna/problemTypes/0/descriptions/0
Source references
1 source assertion{"tags":["vendor-advisory"],"url":"https://security.freebsd.org/advisories/FreeBSD-SA-26:20.fusefs.asc"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:bf730d12e6280251b67c9512476a1901ffdd10b41509ec7f5fd7eed38617fa4d · sha256:130ee59eae10b1e3… · /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.