CVE-2026-32877

Botan is a C++ cryptography library. From version 2.3.0 to before version 3.11.0, during SM2 decryption, the code that checked the authentication code value C3 failed to check that the encoded value was of the expected length prior to comparison. An invalid ciphertext can cause a heap over-read o...

CVE-2026-23967

sm-crypto provides JavaScript implementations of the Chinese cryptographic algorithms SM2, SM3, and SM4. A signature malleability vulnerability exists in the SM2 signature verification logic of the sm-crypto library prior to version 0.3.14. An attacker can derive a new valid signature for a...

CVE-2026-23966

sm-crypto provides JavaScript implementations of the Chinese cryptographic algorithms SM2, SM3, and SM4. A private key recovery vulnerability exists in the SM2 decryption logic of sm-crypto prior to version 0.3.14. By interacting with the SM2 decryption interface multiple times, an attacker can...

CVE-2026-23965 sm-crypto Affected by Signature Forgery in SM2-DSA

sm-crypto provides JavaScript implementations of the Chinese cryptographic algorithms SM2, SM3, and SM4. A signature forgery vulnerability exists in the SM2 signature verification logic of sm-crypto prior to version 0.4.0. Under default configurations, an attacker can forge valid signatures for...

sm-crypto data forgery vulnerability

sm-crypto is an encryption algorithm developed by June01 as a personal developer. Versions of sm-crypto prior to 0.3.14 contained a data falsification vulnerability. This vulnerability stemmed from a malleability flaw in the SM2 signature verification logic, which could allow the generation of ne...

sm-crypto Affected by Signature Forgery in SM2-DSA

Summary A signature forgery vulnerability exists in the SM2 signature verification logic of sm-crypto. Under default configurations, an attacker can forge valid signatures for arbitrary public keys. If the message space contains sufficient redundancy, the attacker can fix the prefix of the messag...

PT-2026-3892

Name of the Vulnerable Software and Affected Versions sm-crypto versions prior to 0.4.0 Description sm-crypto provides JavaScript implementations of Chinese cryptographic algorithms SM2, SM3, and SM4. A flaw exists in the SM2 signature verification logic that allows an attacker to forge valid...

CVE-2026-22699 RustCrypto SM2-PKE has Unchecked AffinePoint Decoding (unwrap) in decrypt()

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...

SM2-PKE has Unchecked AffinePoint Decoding (unwrap) in decrypt()

Summary 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::fromencodedpoint&encodedc1 may return a None/CtOption::None when the supplied...

CVE-2025-9231

Issue summary: A timing side-channel which could potentially allow remote recovery of the private key exists in the SM2 algorithm implementation on 64 bit ARM platforms. Impact summary: A timing side-channel in SM2 signature computations on 64 bit ARM platforms could allow recovering the private...

CVE-2025-9231

Issue summary: A timing side-channel which could potentially allow remote recovery of the private key exists in the SM2 algorithm implementation on 64 bit ARM platforms. Impact summary: A timing side-channel in SM2 signature computations on 64 bit ARM platforms could allow recovering the private...

SUSE CVE-2023-52616

In the Linux kernel, the following vulnerability has been resolved: crypto: lib/mpi - Fix unexpected pointer access in mpiecinit When the mpiecctx structure is initialized, some fields are not cleared, causing a crash when referencing the field when the structure was released. Initially, this iss...

CLSA-2023-1699439565 openssl: Fix of CVE-2021-3711

CVE-2021-3711: Fix an incorrect buffer size calculation leads to an overflow - Check the plaintext buffer is large enough when decrypting SM2 - Add extended tests for SM2...

SUSE CVE-2021-3711

In order to decrypt SM2 encrypted data an application is expected to call the API function EVPPKEYdecrypt. Typically an application will call this function twice. The first time, on entry, the "out" parameter can be NULL and, on exit, the "outlen" parameter is populated with the buffer size...