CVE-2017-6978
It allows attackers to execute arbitrary code in a privileged context or cause a denial of service (memory corruption) via a crafted app.
Does this matter?
A public exploit is published in Exploit-DB (verified) and the impact is high, while EPSS rates exploitation at 4.3%. Anyone can run this; patch or mitigate before the next change window and check exposed instances for signs of use.
Description
An issue was discovered in certain Apple products. macOS before 10.12.5 is affected. The issue involves the "Accessibility Framework" component. It allows attackers to execute arbitrary code in a privileged context or cause a denial of service (memory corruption) via a crafted app.
- CVSS 3.0
- 7.8 HIGHCVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- EPSS
- 4.30% probability · 91th percentile
- Public exploits
- 1 in Exploit-DB · verified · first 23 May 2017
- CISA KEV
- Not listed
- Weakness
- CWE-119
- Affected
- apple/mac os x
- Source
- product-security@apple.com
EPSS moved from 6.3% on 21 September 2026 to 4.3% on 27 October 2026. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”.
Public exploits (1)
Entries in Exploit-DB that cite this CVE. Links go to the Exploit-DB page and to the file in the public repository; nothing is hosted here. A verified tick means the Exploit-DB team confirmed the exploit works against the stated version.
References
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.