CVE-2021-30689
MEDIUMCVSS 6.1/10EPSS 1.07%
Last modified
CVE-2021-30689 is a medium-severity vulnerability rated 6.1/10 on the CVSS scale. A logic issue was addressed with improved state management. This issue is fixed in tvOS 14.6, iOS 14.6 and iPadOS 14.6, Safari 14.1.1, macOS Big Sur 11.4, watchOS 7.5. EPSS estimates a 1.07% chance of exploitation in the next 30 days.
Description
A logic issue was addressed with improved state management. This issue is fixed in tvOS 14.6, iOS 14.6 and iPadOS 14.6, Safari 14.1.1, macOS Big Sur 11.4, watchOS 7.5. Processing maliciously crafted web content may lead to universal cross site scripting.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Apple | Safari | < 14.1.1 |
| Apple | Ipados | < 14.6 |
| Apple | Iphone Os | < 14.6 |
| Apple | Macos | >= 11.0, < 11.4 |
| Apple | Tvos | < 14.6 |
| Apple | Watchos | < 7.5 |
References
- https://support.apple.com/en-us/HT212528Vendor Advisory
- https://support.apple.com/en-us/HT212529Vendor Advisory
- https://support.apple.com/en-us/HT212532Vendor Advisory
- https://support.apple.com/en-us/HT212533Vendor Advisory
- https://support.apple.com/en-us/HT212534Vendor Advisory
- https://support.apple.com/en-us/HT212528Vendor Advisory
- https://support.apple.com/en-us/HT212529Vendor Advisory
- https://support.apple.com/en-us/HT212532Vendor Advisory
- https://support.apple.com/en-us/HT212533Vendor Advisory
- https://support.apple.com/en-us/HT212534Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2021-30689?
A logic issue was addressed with improved state management. This issue is fixed in tvOS 14.6, iOS 14.6 and iPadOS 14.6, Safari 14.1.1, macOS Big Sur 11.4, watchOS 7.5. Processing maliciously crafted web content may lead to universal cross site scripting.
How severe is CVE-2021-30689?
CVE-2021-30689 has a CVSS score of 6.1/10 (MEDIUM severity). The EPSS model estimates a 1.07% probability of exploitation in the next 30 days.
How do I fix CVE-2021-30689?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2021
- CVE-2021-30683A use after free issue was addressed with improved memory ma…7.8
- CVE-2021-30684A logic issue was addressed with improved state management. …7.8
- CVE-2021-30685This issue was addressed with improved checks. This issue is…5.5
- CVE-2021-30686An out-of-bounds read was addressed with improved bounds che…5.5
- CVE-2021-30687An out-of-bounds read was addressed with improved bounds che…5.5
- CVE-2021-30688A malicious application may be able to break out of its sand…8.8
- CVE-2021-30690Multiple issues in apache were addressed by updating apache …9.8
- CVE-2021-30691An information disclosure issue was addressed with improved …5.5
- CVE-2021-30692An information disclosure issue was addressed with improved …5.5
- CVE-2021-30693A validation issue was addressed with improved logic. This i…7.8
- CVE-2021-30694An information disclosure issue was addressed with improved …5.5
- CVE-2021-30695An out-of-bounds read was addressed with improved bounds che…5.5
Are you affected by CVE-2021-30689?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST