CVEvulnerability

CVE-2021-39855

6.5 MEDIUM Published 2021-09-29 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2021-09-29
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
6.5 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
CVSS 3.1 ([email protected])
6.5 MEDIUM — CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
CVSS 2.0 ([email protected])
4.3 MEDIUM — AV:N/AC:M/Au:N/C:P/I:N/A:N
Weaknesses
CWE-200

Description

Acrobat Reader DC ActiveX Control versions 2021.005.20060 (and earlier), 2020.004.30006 (and earlier) and 2017.011.30199 (and earlier) are affected by an Information Disclosure vulnerability. An unauthenticated attacker could leverage this vulnerability to obtain NTLMv2 credentials. Exploitation of this issue requires user interaction in that a victim must open a maliciously crafted Microsoft Office file, or visit an attacker controlled web page.

Affected configurations

• adobe acrobat (>= 17.011.30059 <= 17.011.30199) • adobe acrobat reader (>= 17.011.30059 <= 17.011.30199) • adobe acrobat (>= 20.001.30005 <= 20.004.30006) • adobe acrobat reader (>= 20.001.30005 <= 20.004.30006) • adobe acrobat dc (>= 15.008.20082 <= 21.005.20058) • adobe acrobat reader dc (>= 15.008.20082 <= 21.005.20058) • adobe acrobat dc (>= 15.008.20082 <= 21.005.20060) • adobe acrobat reader dc (>= 15.008.20082 <= 21.005.20060)

Related

Weakness · CWE (1)

  • CWE-200 Exposure of Sensitive Information to an Unauthorized Actor weakness

References