How severe is CVE-2015-5123?

CVE-2015-5123 has a CVSS 3.1 base score of 7.8 (HIGH). EPSS estimates a 18.8% probability of exploitation in the next 30 days. It is listed in the CISA Known Exploited Vulnerabilities catalog.

CVE-2015-5123: Adobe Flash Player Use-After-Free

CISA Known Exploited Vulnerabilities

Adobe Flash Player Use-After-Free Vulnerability is confirmed as actively exploited and is listed in the CISA KEV catalog.

Added to KEV

2022-04-13

Remediation due

2022-05-04

Required action
The impacted product is end-of-life and should be disconnected if still in use.

CISA notes
https://nvd.nist.gov/vuln/detail/CVE-2015-5123

Description

Use-after-free vulnerability in the BitmapData class in the ActionScript 3 (AS3) implementation in Adobe Flash Player 13.x through 13.0.0.302 on Windows and OS X, 14.x through 18.0.0.203 on Windows and OS X, 11.x through 11.2.202.481 on Linux, and 12.x through 18.0.0.204 on Linux Chrome installations allows remote attackers to execute arbitrary code or cause a denial of service (memory corruption) via crafted Flash content that overrides a valueOf function, as exploited in the wild in July 2015.

Severity

CVSS 3.1 · CISA7.8 HIGH

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

SSVC · CISA-ADP

Exploitationactive

Automatableno

Technical impacttotal

Affected Products

Vendor	Product	Affected versions
-	-	n/a

References

14 Links

Vendor advisories

Third-party advisories

Vulnerability databases

Other references

Record Details

Published

2015-07-14

Last updated

2025-11-17

Assigner (CNA)

adobe

Credited to

CVE record data © The MITRE Corporation, used under the CVE Terms of Use. Exploited-in-the-wild data from the CISA Known Exploited Vulnerabilities catalog (CC0). Exploit prediction scores by FIRST EPSS (first.org/epss). This site is not endorsed or certified by MITRE, NVD, CISA, or FIRST.