CVE-2021-30737
A memory corruption issue in the ASN.1 decoder was addressed by removing the vulnerable code. This issue is fixed in tvOS 14.6, Security…
- Published
- Updated
- Reserved
- Assigned by
- apple
Description
A memory corruption issue in the ASN.1 decoder was addressed by removing the vulnerable code. This issue is fixed in tvOS 14.6, Security Update 2021-004 Mojave, iOS 14.6 and iPadOS 14.6, iOS 12.5.4, Security Update 2021-003 Catalina, macOS Big Sur 11.4, watchOS 7.5. Processing a maliciously crafted certificate may lead to arbitrary code execution.
Timeline
ID reserved
By apple
- 5 months later
· 5 months later
Published
- 3 years later
· 3 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.1 | High8.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 1.5% · top 26% of all CVEs (7 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 8.8.
Weakness
- Processing a maliciously crafted certificate may lead to arbitrary code execution
- CWE-787 (opens in a new tab)All about CWE-787 and its CVEs
Affected products
- affected unspecified – < 14.6
- affected unspecified – < 11.4
- affected unspecified – < 2021
- affected unspecified – < 2021
- affected unspecified – < 14.6
- affected unspecified – < 7.5
- affected unspecified – < 12.5
References (7)
- https://support.apple.com/en-us/HT212548 (opens in a new tab)x_refsource_MISCx_transferred
- https://support.apple.com/en-us/HT212528 (opens in a new tab)x_refsource_MISCx_transferred
- https://support.apple.com/en-us/HT212529 (opens in a new tab)x_refsource_MISCx_transferred
- https://support.apple.com/en-us/HT212532 (opens in a new tab)x_refsource_MISCx_transferred
- https://support.apple.com/en-us/HT212533 (opens in a new tab)x_refsource_MISCx_transferred
- https://support.apple.com/en-us/HT212530 (opens in a new tab)x_refsource_MISCx_transferred
- https://support.apple.com/en-us/HT212531 (opens in a new tab)x_refsource_MISCx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2021-30737)Record last updated .