CVE-2021-39852

5.5 MEDIUM

Acrobat Reader DC versions 2021.005.20060 (and earlier), 2020.004.30006 (and earlier) and 2017.011.30199 (and earlier) are affected by a ...

Published: 2021-09-29 · Last updated: 2026-06-17

Severity and scoring

CVSS: 5.5 MEDIUM
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
CWE: CWE-476

Affected products

Vendor	Product
adobe	acrobat, acrobat_dc, acrobat_reader

Description

Acrobat Reader DC versions 2021.005.20060 (and earlier), 2020.004.30006 (and earlier) and 2017.011.30199 (and earlier) are affected by a Null pointer dereference vulnerability. An unauthenticated attacker could leverage this vulnerability to achieve an application denial-of-service in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.

Source: NVD

References

[NVD]https://nvd.nist.gov/vuln/detail/CVE-2021-39852
[Vendor advisory]https://helpx.adobe.com/security/products/acrobat/apsb21-55.html
[Vendor advisory]https://helpx.adobe.com/security/products/acrobat/apsb21-55.html

Related CVEs

Same vendor

CVE-2026-47905 — CAI Content Credentials versions c2pa-web@0.7.1, c2pa-v0.80.1 and earlier are affected by an Uncontrolled Resource Consumption vulnerability (6.2 MEDIUM)
CVE-2026-47904 — CAI Content Credentials versions c2pa-web@0.7.1, c2pa-v0.80.1 and earlier are affected by an Uncontrolled Resource Consumption vulnerability (6.2 MEDIUM)
CVE-2026-47903 — CAI Content Credentials versions c2pa-web@0.7.1, c2pa-v0.80.1 and earlier are affected by an Improper Input Validation vulnerability (6.2 MEDIUM)
CVE-2026-47902 — CAI Content Credentials versions c2pa-web@0.7.1, c2pa-v0.80.1 and earlier are affected by an Uncontrolled Resource Consumption vulnerability (6.2 MEDIUM)
CVE-2026-34713 — CAI Content Credentials versions c2pa-web@0.7.1, c2pa-v0.80.1 and earlier are affected by an Uncontrolled Resource Consumption vulnerability (7.5 HIGH)

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