CVE-2017-16388
This vulnerability is an instance of a use after free vulnerability in the JavaScript API engine.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (9.36%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
An issue was discovered in Adobe Acrobat and Reader: 2017.012.20098 and earlier versions, 2017.011.30066 and earlier versions, 2015.006.30355 and earlier versions, and 11.0.22 and earlier versions. This vulnerability is an instance of a use after free vulnerability in the JavaScript API engine. The mismatch between an old and a new object can provide an attacker with unintended memory access -- potentially leading to code corruption, control-flow hijack, or an information leak attack. Successful exploitation could lead to arbitrary code execution.
- CVSS 3.0
- 8.8 HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
- EPSS
- 9.36% probability · 95th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-416
- Affected
- adobe/acrobat · adobe/acrobat dc · adobe/acrobat reader · adobe/acrobat reader dc
- Source
- psirt@adobe.com
EPSS moved from 7.1% on 21 September 2026 to 9.4% on 27 October 2026. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”.
References
- http://www.securityfocus.com/bid/101818Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1039791Third Party Advisory, VDB Entry
- https://helpx.adobe.com/security/products/acrobat/apsb17-36.htmlVendor Advisory
- http://www.securityfocus.com/bid/101818Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1039791Third Party Advisory, VDB Entry
- https://helpx.adobe.com/security/products/acrobat/apsb17-36.htmlVendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.