CVE-2026-32877
8.2 · HIGHOverview
CVE-2026-32877 is a high-severity vulnerability affecting botan_project botan. It was published on March 30, 2026 and has a CVSS 3.1 base score of 8.2 (HIGH).
This vulnerability has a CVSS 3.1 base score of 8.2, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
Technical Description
Botan is a C++ cryptography library. From version 2.3.0 to before version 3.11.0, during SM2 decryption, the code that checked the authentication code value (C3) failed to check that the encoded value was of the expected length prior to comparison. An invalid ciphertext can cause a heap over-read of up to 31 bytes, resulting in a crash or potentially other undefined behavior. This issue has been patched in version 3.11.0.
Remediation
Check the references section for vendor advisories and patches from botan_project. Update botan to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
Affected Products
| Vendor | Product | Versions | Status |
|---|---|---|---|
| botan_project | botan | >= 2.3.0, < 3.11.0 | Affected |
Frequently Asked Questions
What is CVE-2026-32877?
CVE-2026-32877 is a high-severity vulnerability affecting botan_project botan. It was published on March 30, 2026 and has a CVSS 3.1 base score of 8.2 (HIGH).
How severe is CVE-2026-32877?
This vulnerability has a CVSS 3.1 base score of 8.2, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.
How do I fix or remediate CVE-2026-32877?
Check the references section for vendor advisories and patches from botan_project. Update botan to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.
How can CyberStrike help with CVE-2026-32877?
CyberStrike's AI-powered security agents can automatically detect CVE-2026-32877 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.
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