Botan before 3.6.0, when certain LLVM versions are used, has compiler-induced secret-dependent control flow in lib/utils/ghash/ghash.cpp in GHASH in AES-GCM. There is a branch instead of an XOR with carry. This was observed for Clang in LLVM 15 on RISC-V.
Conclusion & alert: CVE-2024-50382 is rated Exploit Available (51.3/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.16%). Core evidence: 1 public exploit reference(s) are indexed (Exploit-DB). Mandatory action: Public exploits are available—assess exposure, apply mitigations, and prioritize patching.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
| EDB-ID | Source | Kind | Published | Link |
|---|---|---|---|---|
| — | nvd_ref | exploit_tag | Exploit-DB ↗ |
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2026-05-22 | 0.11% | 0.16% | +0.05% |
| 2 | 2025-12-01 | 0.16% | 0.11% | -0.05% |
| 3 | 2025-08-19 | — | 0.16% | — |
Full EPSS history (7 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 5.9 | 3.1 | MEDIUM |
|
2.2 | 3.6 | 134c704f-9b21-4f2e-91b3-4a467353bcc0 |
| vendor | priority | summary | link |
|---|---|---|---|
alpine
|
— | CVE-2024-50382: 1 source package rows (botan); 34 state rows across 6 repos (3.17-main, 3.18-main, 3.19-main, 3.20-main, 3.21-main, edge-main); fixed 0, open 34. | https://security.alpinelinux.org/vuln/CVE-2024-50382 |
debian
|
unimportant | CVE-2024-50382 unimportant priority: Debian including 1 source packages (botan), 3 status rows across 3 suites (bookworm, bullseye, trixie): resolved 2, open 1. | https://security-tracker.debian.org/tracker/CVE-2024-50382 |
suse
|
medium | CVE-2024-50382 severity moderate: SUSE including 29 source package names (Botan, Botan-2.19.5-bp155.2.6.1, …), 68 product×package rows across 13 product lines (SUSE Linux Enterprise Module for Package Hub 15 SP5, SUSE Linux Enterprise Module for Package Hub 15 SP6, … (13 product lines)): Fixed 41, Known Not Affected 27. | https://www.suse.com/security/cve/CVE-2024-50382/ |
ubuntu
|
medium | CVE-2024-50382 medium priority: Ubuntu including 3 source packages (botan, oscar, thunderbird), 22 status rows across 8 suites (bionic, focal, jammy, noble, oracular, plucky, questing, upstream): not-affected 7, needs-triage 6, released 4, ignored 3, DNE 1, needed 1. | https://ubuntu.com/security/CVE-2024-50382 |
| Vendor | Product | Version | Raw CPE |
|---|---|---|---|
| botan_project | botan | < 3.6.0 | cpe:2.3:a:botan_project:botan:*:*:*:*:*:*:*:* |
| URL | Tags |
|---|---|
| https://arxiv.org/pdf/2410.13489 | Exploit Technical Description Third Party Advisory |
| https://github.com/randombit/botan/commit/53b0cfde580e86b03d0d27a488b6c134f662e957 | Patch |
| https://github.com/randombit/botan/compare/3.5.0...3.6.0 | Product |
| https://news.ycombinator.com/item?id=41887153 | Issue Tracking |