CVE Explorer
CVE-2026-9267
Eclipse tinydtls before commit b3efd41ad111a4920f599f51ffa4f5e9f1e72221 contains an out-of-bounds read vulnerability in the check_server_certificate() function that allows unauthenticated attackers to trigger reads beyond valid buffer boundaries by crafting a Certificate handshake message with a specific fragment_length value. Attackers can exploit missing buffer length validation before uint24 reads, memcmp, and memcpy operations during DTLS epoch 0 on both client and server paths to cause deni
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0
Affected products and versions
1 source assertion{"defaultStatus":"unaffected","product":"Eclipse tinydtls","repo":"https://github.com/eclipse-tinydtls/tinydtls","vendor":"Eclipse Foundation","versions":[{"lessThan":"b3efd41ad111a4920f599f51ffa4f5e9f1e72221","status":"affected","version":"0","versionType":"git"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:a3449d24e0a9382c667821d1c609c22fbe0a368b6fe7cdab8dbc14085666e839 · sha256:fe32707be7a31525… · /containers/cna/affected/0
Provider-owned CVSS observations
1 source assertion{"metric":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":6.9,"baseSeverity":"MEDIUM","exploitMaturity":"NOT_DEFINED","privilegesRequired":"NONE","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","valueDensity":"NOT_DEFINED","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"LOW","vulnConfidentialityImpact":…
- cve_program_cvelist_v5cvssurn:baitaphish:normalized-source-record:v2:a3449d24e0a9382c667821d1c609c22fbe0a368b6fe7cdab8dbc14085666e839 · sha256:fe32707be7a31525… · /containers/cna/metrics/0/cvssV4_0
CWE assertions
1 source assertion{"cweId":"CWE-125","description":"CWE-125 Out-of-bounds read","lang":"en","type":"CWE"}
- cve_program_cvelist_v5cweurn:baitaphish:normalized-source-record:v2:a3449d24e0a9382c667821d1c609c22fbe0a368b6fe7cdab8dbc14085666e839 · sha256:fe32707be7a31525… · /containers/cna/problemTypes/0/descriptions/0
Source references
1 source assertion{"url":"https://gitlab.eclipse.org/security/cve-assignment/-/work_items/112"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:a3449d24e0a9382c667821d1c609c22fbe0a368b6fe7cdab8dbc14085666e839 · sha256:fe32707be7a31525… · /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.