Is this vulnerability remotely exploitable?

Yes, if the SM2 PKE decryption endpoint is exposed to remote users or untrusted data sources. An attacker who can submit crafted ciphertexts to that endpoint can trigger the panic and cause denial of service.

What level of access does an attacker need?

The attacker only needs the ability to influence or submit SM2 ciphertexts processed by an affected decryption routine. No valid keys or prior authentication are required beyond whatever the application normally requires to send data to the decryption API.

What is the safest general fix pattern?

Replace unchecked `.unwrap()` calls on elliptic-curve point decoding results with explicit error handling. Treat the decoding call as fallible, verify that the point lies on the curve, and return or propagate a structured decryption error instead of panicking.

Severity:

HIGH RISK

(7.5)

Improper Input Validation (CWE-20) in RustCrypto Elliptic Curves SM2 PKE Decryption

CVE-2026-22699

Published:

Jan 10, 2026

Status:

Analyzed

Summary

Affected Context

Exploit Preconditions

Why This Happens

Potential Impact

General Mitigation Guidance

How Teams Detect Issues Like This

Frequently Asked Questions

Source

NDV

Recent Vulnerabilities

CWE-306

CRITICAL RISK

CRITICAL

(9.8)

Missing Authentication for Forgot-Password Email Change API (CWE-306)

Account Takeover / Loss of Account Control

February 17, 2026

CWE-77;CWE-78

HIGH RISK

HIGH

(7.3)

OS Command Injection (CWE-78) in node-sonos-http-api TTS Provider for macOS

Remote Code Execution on the Server Host

February 17, 2026

Vulnerability Type

Category:

Improper Input Validation

CWE:

CWE-20

Impact:

Denial of Service via Panic in Cryptographic Decryption Path

Severity:

HIGH RISK

(7.5)

CVSS Version:

3.1

Vulnerability Type

Category:

Improper Input Validation

CWE:

CWE-20

Impact:

Denial of Service via Panic in Cryptographic Decryption Path

Severity:

HIGH RISK

(7.5)

CVSS Version:

3.1

Catch This CVE While Code Is Being Written

Detect vulnerable code directly in pull requests, so CVEs are fixed before merge.

Get Started

Ship clean & secure code faster

START 14 DAYS FREE TRIAL

BOOK A DEMO

Made with Love in San Francisco

355 Bryant St. San Francisco, CA 94107, USA

Ask AI for summary of CodeAnt

Made with Love in San Francisco

355 Bryant St. San Francisco, CA 94107, USA

Ask AI for summary of CodeAnt

Made with Love in San Francisco

355 Bryant St. San Francisco, CA 94107, USA

Ask AI for summary of CodeAnt

Improper Input Validation (CWE-20) in RustCrypto Elliptic Curves SM2 PKE Decryption

Summary

Affected Context

Exploit Preconditions

Why This Happens

Potential Impact

General Mitigation Guidance

How Teams Detect Issues Like This

Frequently Asked Questions

Source

Recent Vulnerabilities

CRITICAL RISK

CRITICAL

(9.8)

Missing Authentication for Forgot-Password Email Change API (CWE-306)

HIGH RISK

HIGH

(7.3)

OS Command Injection (CWE-78) in node-sonos-http-api TTS Provider for macOS

Vulnerability Type

Vulnerability Type

Vulnerability Type

Vulnerability Type

Catch This CVE While Code Is Being Written

Ship clean & secure code faster

Product

Pricing

Company

Legal

Developers

Compare

Product

Pricing

Company

Legal

Developers

Compare

Product

Pricing

Company

Legal

Developers

Compare