MEDIUM
CVE-2026-20699
Published: March 25, 2026· Updated: Mar 25, 2026
6.2
CVSS v3.1
EPSS:0.02%probability of exploitation in 30 daysPercentile:4.3th
Official Description
A downgrade issue affecting Intel-based Mac computers was addressed with additional code-signing restrictions. This issue is fixed in macOS Sequoia 15.7.5, macOS Sonoma 14.8.5, macOS Tahoe 26.3, macOS Tahoe 26.4. An app may be able to access user-sensitive data.
Technical Analysis
CVE-2026-20699 requires local access, meaning attackers must already have a foothold on the target system.
The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.
A successful exploit results in complete confidentiality breach (data exposure), with a CVSS base score of 6.2.
CVSS v3.1 Vector Breakdown
Exploitability
Attack VectorLocal
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityNone
AvailabilityNone
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Affected Vendors & Products
Apple1 product
macos
Source: NVD CPE · 1 total CPE entries
Exploit & PoC Resources
NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.
Official Patches & Advisories
All References (4)
→
https://support.apple.com/en-us/126348Release Notes · Vendor Advisory
→
https://support.apple.com/en-us/126794Release Notes · Vendor Advisory
→
https://support.apple.com/en-us/126795Release Notes · Vendor Advisory
→
https://support.apple.com/en-us/126796Release Notes · Vendor Advisory
Quick Facts
CVE IDCVE-2026-20699
CVSS Score6.2 / 10
SeverityMEDIUM
CISA KEVNo
EPSS (30d)0.02%
Affected1 vendor
PublishedMar 25, 2026
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2026-20699 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.