--- cve: "CVE-2022-35961" severity: "HIGH" cvss: 7.9 epss: "42%" vendor: "OpenZeppelin" kev: false exploited: false published: "2022-08-15 11:21:39" tags: [cve, security, high] source: tsecurity.de CVE-Dossier exported: "2026-09-12T22:42:04+02:00" --- # CVE-2022-35961 > 7.9 HIGH · 🧪 PoC ## Beschreibung OpenZeppelin Contracts is a library for secure smart contract development. The functions `ECDSA.recover` and `ECDSA.tryRecover` are vulnerable to a kind of signature malleability due to accepting EIP-2098 compact signatures in addition to the traditional 65 byte signature format. This is only an issue for the functions that take a single `bytes` argument, and not the functions that take `r, v, s` or `r, vs` as separate arguments. The potentially affected contracts are those that implement signature reuse or replay protection by marking the signature itself as used rather than the signed message or a nonce included in it. A user may take a signature that has already been submitted, submit it again in a different form, and bypass this protection. The issue has been patched in 4.7.3. ## CVSS-Vektor ``` CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:L ``` | Metrik | Wert | Bewertung | |---|---|---| | AV Angriffsvektor | Netzwerk | bad | | AC Komplexität | Hoch | good | | PR Privilegien | Gering | warn | | UI Interaktion | Erforderlich | good | | S Scope | Verändert | bad | | C Vertraulichkeit | Hoch | bad | | I Integrität | Hoch | bad | | A Verfügbarkeit | Gering | warn | ## Patch verfügbar (OSV) - ecd2ca2cd7cac116f7a37d0e474bbb3d7d5e1c4d (Commit) - 0a2cb9a445c365870ed7a8ab461b12acf3e27d63 (Commit) ## Referenzen - - - --- _Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2022-35961) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_