Cyber Resilience

CVE-2021-40725

High

Published: 07 October 2021

Published
07 October 2021
Modified
21 November 2024
KEV Added
Patch
CVSS Score v3 7.8 CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS Score 0.1350 94.4th percentile
Risk Priority 24 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2021-40725 is a high-severity Use After Free (CWE-416) vulnerability in Adobe Acrobat Dc. Its CVSS base score is 7.8 (High).

Operationally, ranked in the top 5.6% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

Acrobat Reader DC versions 2021.005.20060 (and earlier), 2020.004.30006 (and earlier) and 2017.011.30199 (and earlier) are affected by a use-after-free vulnerability when processing AcroForm listbox that could result in arbitrary code execution in the context of the current user. User interaction…

more

is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.

CWE(s)

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

adobe
acrobat dc
17.011.30059 — 17.011.30199 · 20.001.30005 — 20.004.30006 · 15.008.20082 — 21.005.20058
adobe
acrobat reader dc
17.011.30059 — 17.011.30199 · 20.001.30005 — 20.004.30006 · 15.008.20082 — 21.005.20058

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

addresses: CWE-416

Use-after-free exploits that achieve arbitrary code execution are blocked or significantly hardened by non-executable pages and ASLR.

References