CVE-2026-22699

HIGH EPSS 29.3%
Published Jan 10, 20265mo ago · Modified Jun 17, 20262w ago
7.5 CVSS 3.1
High
Find Similar
Published Jan 10, 2026 5mo ago
Last Modified Jun 17, 2026 2w ago

Description

RustCrypto: Elliptic Curves is general purpose Elliptic Curve Cryptography (ECC) support, including types and traits for representing various elliptic curve forms, scalars, points, and public/secret keys composed thereof. In versions 0.14.0-pre.0 and 0.14.0-rc.0, a denial-of-service vulnerability exists in the SM2 PKE decryption path where an invalid elliptic-curve point (C1) is decoded and the resulting value is unwrapped without checking. Specifically, AffinePoint::from_encoded_point(&encoded_c1) may return a None/CtOption::None when the supplied coordinates are syntactically valid but do not lie on the SM2 curve. The calling code previously used .unwrap(), causing a panic when presented with such input. This issue has been patched via commit 085b7be.

CVSS Details

Base Score
7.5
Exploitability
3.9
Impact
3.6
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

EPSS Exploit Probability
29.3% percentile
Exploit & Patch Status
Public Exploit Known
Patch Available

Weaknesses 1

CWE-20 Improper Input Validation Validation

Affected Products 2

VendorProductVersionRange
rustcryptosm2_elliptic_curve0.14.0any
rustcryptosm2_elliptic_curve0.14.0any

References 3

  • github.com https://github.com/RustCrypto/elliptic-curves/commit/085b7bee647029bd189e1375203418205006bcab
    Patch
  • github.com https://github.com/RustCrypto/elliptic-curves/pull/1602
    Issue TrackingPatch
  • github.com https://github.com/RustCrypto/elliptic-curves/security/advisories/GHSA-78p6-6878-8mj6
    ExploitVendor Advisory

Remediation

  • github.com https://github.com/RustCrypto/elliptic-curves/commit/085b7bee647029bd189e1375203418205006bcab
    Patch
  • github.com https://github.com/RustCrypto/elliptic-curves/pull/1602
    Issue TrackingPatch