CVE-2020-9934 kev in the critical feed json
An issue existed in the handling of environment variables.
published 2020-10-16 6 y ago modified 2026-06-17 4 mo ago also EUVD-2020-30713
- cvss
- 5.5
- version 3.1, CNA
- cisa kev
- Exploited
- added 2022-09-08
- epss
- 3.2%
- EPSS 3.2% chance of exploitation in 30 days, percentile 88%
- public exploits
- 1
- Metasploit
Summary
An issue existed in the handling of environment variables. This issue was addressed with improved validation. This issue is fixed in iOS 13.6 and iPadOS 13.6, macOS Catalina 10.15.6. A local user may be able to view sensitive user information.
Patch / fix
cisa required action Apply updates per vendor instructions.
- Apple iOS iOS 13.6 and iPadOS 13.6
- Apple macOS macOS Catalina 10.15.6
Timeline
- Published
- Added to CISA KEV
- CISA patch deadline
- CISA SSVC: exploitation active
Known exploited
- Added
- 4 y ago
- Patch by
- 2022-09-29 (4 y ago)
- Ransomware
- Not known
- Required action
- Apply updates per vendor instructions.
- Vendor, product
- Apple, iOS, iPadOS, and macOS
- CISA name
- Apple iOS, iPadOS, and macOS Input Validation Vulnerability
CISA SSVC
- Exploitation
- Active, exploited in the wild
- Automatable
- no
- Technical impact
- partial
- Assessed
- 21 mo ago
Exploit prediction
3.21% chance of exploitation in the next 30 days, higher than 88% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- Metasploit post/osx/escalate/tccbypass Bypass the macOS TCC Framework metasploit post, normal rank
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CISA ADP | 3.1 | 5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N |
| NVD | 3.1 | 5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N |
| CNA | 3.1 | 5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N |
| NVD | 2.0 | 2.1 | AV:L/AC:L/Au:N/C:P/I:N/A:N |
Affected products
- Apple iOS
- Apple macOS
References
-
support.apple.com
/HT211289
release-notes, vendor-advisory
-
support.apple.com
/HT211288
release-notes, vendor-advisory
-
cisa.gov
/known-exploited-vulnerabilities-catalog?field_cve=CVE-2020-9934
government-resource, us-government-resource
Sources
- CVE List CVE-2020-9934
- NVD CVE-2020-9934
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.