CVE-2026-22700 is a denial-of-service vulnerability affecting RustCrypto's SM2 public-key encryption implementation in versions 0.14.0-pre.0 and 0.14.0-rc.0 of the sm2_elliptic_curve crate. An unauthenticated attacker can trigger bounds-check panics by submitting malformed or undersized ciphertext, leading to a crash of the calling thread or process. This vulnerability has a CVSS score of 7.5 (HIGH) due to its network attack vector and low attack complexity, resulting in high availability impact. There is currently no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
0.14.0CPE matchmatch criteria | cpe:2.3:a:rustcrypto:sm2_elliptic_curve:0.14.0:pre0:*:*:*:rust:*:* | ||
0.14.0CPE matchmatch criteria | cpe:2.3:a:rustcrypto:sm2_elliptic_curve:0.14.0:rc0:*:*:*:rust:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
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