SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2016-0998

Use-after-free vulnerability in Adobe Flash Player before 18.0.0.333 and 19.x through 21.x before 21.0.0.182 on Windows and OS X and before 11.2.202.577 on Linux, Adobe AIR before 21.0.0.176, Adobe AIR SDK before 21.0.0.176, and Adobe AIR SDK & Compiler…

EXPLOIT ×2 ✓HIGH 8.8EPSS 28.3%

Does this matter?

EPSS puts the probability of exploitation in the next 30 days at 28.3%, higher than 98% of all known CVEs. Patch or mitigate before the next change window.

Description

Use-after-free vulnerability in Adobe Flash Player before 18.0.0.333 and 19.x through 21.x before 21.0.0.182 on Windows and OS X and before 11.2.202.577 on Linux, Adobe AIR before 21.0.0.176, Adobe AIR SDK before 21.0.0.176, and Adobe AIR SDK & Compiler before 21.0.0.176 allows attackers to execute arbitrary code via unspecified vectors, a different vulnerability than CVE-2016-0987, CVE-2016-0988, CVE-2016-0990, CVE-2016-0991, CVE-2016-0994, CVE-2016-0995, CVE-2016-0996, CVE-2016-0997, CVE-2016-0999, and CVE-2016-1000.

CVSS 3.1
8.8 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS
28.33% probability · 98th percentile
Public exploits
2 in Exploit-DB · verified · first 23 March 2016
CISA KEV
Not listed
Weakness
CWE-416
Affected
adobe/flash player · adobe/air · adobe/air sdk · samsung/x14j firmware · adobe/flash player desktop runtime · adobe/air desktop runtime · adobe/air sdk \& compiler
Source
psirt@adobe.com
EPSS trend
0%15%30%26 September 2026: 28.33%26 October 2026: 28.33%26 September 202626 October 2026

EPSS moved from 28.3% on 26 September 2026 to 28.3% on 26 October 2026. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”.

Public exploits (2)

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.

EDB-IDTitleTypePublishedVerified
EDB-39631source ↗Adobe Flash - Object.unwatch Use-After-Freemultiple · Google Security Researchremote29 March 2016yes
EDB-39612source ↗Adobe Flash - Uninitialized Stack Parameter Access in Object.unwatch UaF Fixwindows · Google Security Researchdos23 March 2016yes

References

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.