CVE-2026-42067 json
`verify_x509_cert` does not check the certificate validity period
published yesterday modified 23h ago also EUVD-2026-121316 , GHSA-w4mf-755j-wjwc , RUSTSEC-2026-0481
- cvss
- 5.9
- version 4.0, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.1%
- EPSS 0.1% chance of exploitation in 30 days, percentile 1%
- public exploits
- 0
- none known
Summary
Improper certificate validation for some Intel(R) TDX Workload Attestation software within Ring 3: User Applications may allow an escalation of privilege. Unprivileged software adversary with an unauthenticated user combined with a low complexity attack may enable data manipulation. This result may potentially occur via local access when attack requirements are present without special internal knowledge and requires no user interaction. The potential vulnerability may impact the confidentiality (none), integrity (high) and availability (none) of the vulnerable system, resulting in subsequent system confidentiality (none), integrity (none) and availability (none) impacts.
Patch / fix
- crates.io tdx_workload_attestation 0.2.0
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Check with FencerCISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- total
- Assessed
- yesterday
Exploit prediction
0.11% chance of exploitation in the next 30 days, higher than 1% of all scored CVEs (FIRST EPSS, 2026-11-11).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 5.9 | CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N |
| CNA | 4.0 | 5.9 | CVSS:4.0/AV:L/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| crates.io | tdx_workload_attestation | >=0.0.0-0, <0.2.0 |
0.2.0 |
Affected products
- n/a Intel(R) TDX Workload Attestation software
Classification
- Weakness
-
- CWE-295 Improper Certificate Validation
References
-
github.com
/IntelLabs/tdx-workload-attestation/pull/86
web
- intel.com /content/www/us/en/security-center/advisory/intel-sa-01520.html
-
crates.io
/crates/tdx_workload_attestation
package
-
rustsec.org
/advisories/RUSTSEC-2026-0481.html
advisory
-
intel.com
/content/www/us/en/security-center/advisory/intel-sa-01520.html
web
-
github.com
/IntelLabs/tdx-workload-attestation/releases/tag/v0.2.0
web
Sources
- CVE List CVE-2026-42067
- NVD CVE-2026-42067
- OSV RUSTSEC-2026-0481
Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.