{"id":"CVE-2024-23218","aliases":["EUVD-2024-20737","GHSA-f8vm-23j7-pf2r"],"status":"published","title":"A timing side-channel issue was addressed with improvements to constant-time computation in...","description":"A timing side-channel issue was addressed with improvements to constant-time computation in cryptographic functions. This issue is fixed in iOS 16.7.6 and iPadOS 16.7.6, iOS 17.3 and iPadOS 17.3, macOS Monterey 12.7.4, macOS Sonoma 14.3, macOS Ventura 13.6.5, tvOS 17.3, watchOS 10.3. An attacker may be able to decrypt legacy RSA PKCS#1 v1.5 ciphertexts without having the private key.","severity":{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-10","score":0.00992,"percentile":0.62877,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-203"],"published":"2024-01-23T00:25:38Z","modified":"2026-06-17T07:12:19Z","products":[{"vendor":"apple","product":"ios and ipados"},{"vendor":"apple","product":"ipados"},{"vendor":"apple","product":"iphone_os"},{"vendor":"apple","product":"macos"},{"vendor":"apple","product":"tvos"},{"vendor":"apple","product":"watchos"}],"references":[{"url":"https://support.apple.com/en-us/120304"},{"url":"https://support.apple.com/en-us/120306"},{"url":"https://support.apple.com/en-us/120309"},{"url":"https://support.apple.com/en-us/120311"},{"url":"https://support.apple.com/en-us/120880"},{"url":"https://support.apple.com/en-us/120884"},{"url":"https://support.apple.com/en-us/120886"},{"url":"https://support.apple.com/en-us/HT214059","tags":["x_transferred","Release Notes","Vendor Advisory"]},{"url":"https://support.apple.com/en-us/HT214055","tags":["x_transferred","Release Notes","Vendor Advisory"]},{"url":"https://support.apple.com/en-us/HT214060","tags":["x_transferred","Release Notes","Vendor Advisory"]},{"url":"https://support.apple.com/en-us/HT214061","tags":["x_transferred","Release Notes","Vendor Advisory"]},{"url":"http://seclists.org/fulldisclosure/2024/Jan/33","tags":["x_transferred","Third Party Advisory"]},{"url":"http://seclists.org/fulldisclosure/2024/Jan/36","tags":["x_transferred","Third Party Advisory"]},{"url":"http://seclists.org/fulldisclosure/2024/Jan/39","tags":["x_transferred","Third Party Advisory"]},{"url":"http://seclists.org/fulldisclosure/2024/Jan/40","tags":["x_transferred","Third Party Advisory"]},{"url":"https://support.apple.com/kb/HT214082","tags":["x_transferred"]},{"url":"https://support.apple.com/kb/HT214083","tags":["x_transferred"]},{"url":"https://support.apple.com/kb/HT214085","tags":["x_transferred"]},{"url":"http://seclists.org/fulldisclosure/2024/Mar/22","tags":["x_transferred"]},{"url":"http://seclists.org/fulldisclosure/2024/Mar/23","tags":["x_transferred"]},{"url":"https://support.apple.com/kb/HT214061"},{"url":"https://support.apple.com/kb/HT214059"},{"url":"https://support.apple.com/kb/HT214055"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2024-23218"},{"url":"https://github.com/advisories/GHSA-f8vm-23j7-pf2r"}],"sources":{"cve":[{"id":"CVE-2024-23218","description":"A timing side-channel issue was addressed with improvements to constant-time computation in cryptographic functions. This issue is fixed in iOS 16.7.6 and iPadOS 16.7.6, iOS 17.3 and iPadOS 17.3, macOS Monterey 12.7.4, macOS Sonoma 14.3, macOS Ventura 13.6.5, tvOS 17.3, watchOS 10.3. An attacker may be able to decrypt legacy RSA PKCS#1 v1.5 ciphertexts without having the private key.","status":"published","published":"2024-01-23T00:25:38.999Z","modified":"2026-04-02T18:26:59.685Z","cvss":[{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"adp"}],"cwes":["CWE-203"],"updated_at":"2026-11-02T14:34:05.444281Z"}],"euvd":[{"id":"EUVD-2024-20737","description":"A timing side-channel issue was addressed with improvements to constant-time computation in cryptographic functions. This issue is fixed in iOS 16.7.6 and iPadOS 16.7.6, iOS 17.3 and iPadOS 17.3, macOS Monterey 12.7.4, macOS Sonoma 14.3, macOS Ventura 13.6.5, tvOS 17.3, watchOS 10.3. An attacker may be able to decrypt legacy RSA PKCS#1 v1.5 ciphertexts without having the private key.","status":"published","published":"2024-01-23T00:25:38Z","modified":"2026-04-02T18:26:59Z","cvss":[{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"medium"}],"updated_at":"2026-11-02T19:25:17.32175Z"}],"ghsa":[{"id":"GHSA-f8vm-23j7-pf2r","title":"A timing side-channel issue was addressed with improvements to constant-time computation in...","description":"A timing side-channel issue was addressed with improvements to constant-time computation in cryptographic functions. This issue is fixed in macOS Sonoma 14.3, watchOS 10.3, tvOS 17.3, iOS 17.3 and iPadOS 17.3. An attacker may be able to decrypt legacy RSA PKCS#1 v1.5 ciphertexts without having the private key.","status":"published","published":"2024-01-23T03:31:08Z","modified":"2026-04-02T21:32:39Z","cvss":[{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"medium"}],"cwes":["CWE-203"],"updated_at":"2026-11-02T15:07:06.607954Z"}],"nvd":[{"id":"CVE-2024-23218","description":"A timing side-channel issue was addressed with improvements to constant-time computation in cryptographic functions. This issue is fixed in iOS 16.7.6 and iPadOS 16.7.6, iOS 17.3 and iPadOS 17.3, macOS Monterey 12.7.4, macOS Sonoma 14.3, macOS Ventura 13.6.5, tvOS 17.3, watchOS 10.3. An attacker may be able to decrypt legacy RSA PKCS#1 v1.5 ciphertexts without having the private key.","status":"published","published":"2024-01-23T01:15:11.403Z","modified":"2026-06-17T07:12:19.473Z","cvss":[{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"primary"},{"version":"3.1","score":5.9,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N","level":"medium","assessor":"secondary"}],"cwes":["CWE-203"],"updated_at":"2026-11-02T14:09:32.147098Z"}]}}