CVE Explorer
CVE-2026-2645
In wolfSSL 5.8.2 and earlier, a logic flaw existed in the TLS 1.2 server state machine implementation. The server could incorrectly accept the CertificateVerify message before the ClientKeyExchange message had been received. This issue affects wolfSSL before 5.8.4 (wolfSSL 5.8.2 and earlier is vulnerable, 5.8.4 is not vulnerable). In 5.8.4 wolfSSL would detect the issue later in the handshake. 5.9.0 was further hardened to catch the issue earlier in the handshake.
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0
Affected products and versions
1 source assertion{"defaultStatus":"unaffected","product":"wolfSSL","vendor":"wolfSSL","versions":[{"lessThan":"5.8.4","status":"affected","version":"0","versionType":"semver"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:ac767b397f975f91b116f46f8cd7c0a7f0a81727a9e0a8dbc0a59ac4567504a5 · sha256:f90aed2a006bd469… · /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":5.5,"baseSeverity":"MEDIUM","exploitMaturity":"PROOF_OF_CONCEPT","privilegesRequired":"LOW","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"PASSIVE","valueDensity":"NOT_DEFINED","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:P","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentia…
- cve_program_cvelist_v5cvssurn:baitaphish:normalized-source-record:v2:ac767b397f975f91b116f46f8cd7c0a7f0a81727a9e0a8dbc0a59ac4567504a5 · sha256:f90aed2a006bd469… · /containers/cna/metrics/0/cvssV4_0
CWE assertions
1 source assertion{"cweId":"CWE-358","description":"CWE-358: Improperly Implemented Security Check for Standard","lang":"en","type":"CWE"}
- cve_program_cvelist_v5cweurn:baitaphish:normalized-source-record:v2:ac767b397f975f91b116f46f8cd7c0a7f0a81727a9e0a8dbc0a59ac4567504a5 · sha256:f90aed2a006bd469… · /containers/cna/problemTypes/0/descriptions/0
Source references
1 source assertion{"url":"https://github.com/wolfSSL/wolfssl/pull/9694"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:ac767b397f975f91b116f46f8cd7c0a7f0a81727a9e0a8dbc0a59ac4567504a5 · sha256:f90aed2a006bd469… · /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.