CVE-2020-9857
MEDIUMCVSS 4.3/10EPSS 0.75%
Last modified
CVE-2020-9857 is a medium-severity vulnerability rated 4.3/10 on the CVSS scale. An issue existed in the parsing of URLs. This issue was addressed with improved input validation. EPSS estimates a 0.75% chance of exploitation in the next 30 days.
Description
An issue existed in the parsing of URLs. This issue was addressed with improved input validation. This issue is fixed in macOS Catalina 10.15.5, Security Update 2020-003 Mojave, Security Update 2020-003 High Sierra. A malicious website may be able to exfiltrate autofilled data in Safari.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Apple | Mac Os X | < 10.15.5 |
References
- https://support.apple.com/en-us/HT211170Release Notes, Vendor Advisory
- https://support.apple.com/en-us/HT211170Release Notes, Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2020-9857?
An issue existed in the parsing of URLs. This issue was addressed with improved input validation. This issue is fixed in macOS Catalina 10.15.5, Security Update 2020-003 Mojave, Security Update 2020-003 High Sierra. A malicious website may be able to exfiltrate autofilled data in Safari.
How severe is CVE-2020-9857?
CVE-2020-9857 has a CVSS score of 4.3/10 (MEDIUM severity). The EPSS model estimates a 0.75% probability of exploitation in the next 30 days.
How do I fix CVE-2020-9857?
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.
Are you affected by CVE-2020-9857?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST