CVE-2021-24115
CRITICAL
9.8
CVSS Score
Published: February 22, 2021 at 01:57 AM UTC
Updated: June 17, 2026 at 03:39 AM UTC
1 product affected across 1 vendorBotan
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Severity
CRITICAL9.8
Exploit prediction
EPSS 2%
Description
In Botan before 2.17.3, constant-time computations are not used for certain decoding and encoding operations (base32, base58, base64, and hex).
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
v < 2.17.3
Affected range stops below 2.17.3, so it looks safe — our inference, not a vendor statement
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
References (3)
x_refsource_CONFIRMRelease NotesVendor Advisory
Source: [email protected]
https://botan.randombit.net/news.htmlx_refsource_MISCPatchThird Party Advisory
Source: [email protected]
https://github.com/randombit/botan/compare/2.17.2...2.17.3x_refsource_MISCPatchThird Party Advisory
Source: [email protected]
https://github.com/randombit/botan/pull/2549CVSS
- Attack Vector
- NETWORK
- Complexity
- LOW
- Privileges
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- HIGH
- Integrity
- HIGH
- Availability
- HIGH
Vector?
Quick Info
StatusMODIFIED
CWE
NVD-CWE-noinfo
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