CVE-2021-37155
CRITICALCVSS 9.8/10EPSS 1.49%
Last modified
CVE-2021-37155 is a critical-severity vulnerability rated 9.8/10 on the CVSS scale. wolfSSL 4.6.x through 4.7.x before 4.8.0 does not produce a failure outcome when the serial number in an OCSP request differs from the serial number in the OCSP response.. EPSS estimates a 1.49% chance of exploitation in the next 30 days.
Description
wolfSSL 4.6.x through 4.7.x before 4.8.0 does not produce a failure outcome when the serial number in an OCSP request differs from the serial number in the OCSP response.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Wolfssl | Wolfssl | >= 4.6.0, < 4.8.0 |
References
- https://github.com/wolfSSL/wolfssl/pull/3990Patch, Third Party Advisory
- https://github.com/wolfSSL/wolfssl/releases/tag/v4.8.0-stableRelease Notes, Third Party Advisory
- https://github.com/wolfSSL/wolfssl/pull/3990Patch, Third Party Advisory
- https://github.com/wolfSSL/wolfssl/releases/tag/v4.8.0-stableRelease Notes, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2021-37155?
wolfSSL 4.6.x through 4.7.x before 4.8.0 does not produce a failure outcome when the serial number in an OCSP request differs from the serial number in the OCSP response.
How severe is CVE-2021-37155?
CVE-2021-37155 has a CVSS score of 9.8/10 (CRITICAL severity). The EPSS model estimates a 1.49% probability of exploitation in the next 30 days.
How do I fix CVE-2021-37155?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
Are you affected by CVE-2021-37155?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST