CVE-2021-39846 — Stack-based Buffer Overflow in Adobe Acrobat Reader

CWE-121 — Stack-based Buffer OverflowCWE-787 — Out-of-bounds Write4 documents4 sources
Severity
6.1MEDIUMNVD
EPSS
1.0%
top 22.73%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
4
Adobe Acrobat ReaderAdobe AcrobatAdobe Acrobat DC+1 more
Timeline
PublishedSep 29
Latest updateMay 24

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 stack overflow vulnerability due to insecure handling of a crafted PDF file, potentially resulting in memory corruption in the context of the current user. Exploitation requires user interaction in that a victim must open a crafted PDF file in Acrobat Reader.

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:HExploitability: 1.8 | Impact: 4.2

Affected Packages5 packages

▶CVEListV5adobe/acrobat_readerunspecified — 2020.004.30006+3
▶NVDadobe/acrobat_reader20.001.30005 — 20.004.30006+1
▶NVDadobe/acrobat_reader_dc15.008.20082 — 21.005.20058+1
▶NVDadobe/acrobat20.001.30005 — 20.004.30006+1
▶NVDadobe/acrobat_dc15.008.20082 — 21.005.20058+1

🔴Vulnerability Details

2
GHSA
GHSA-rxcq-r82r-9c47: Acrobat Reader DC versions 2021↗2022-05-24
▶
CVEList
Adobe Acrobat Reader /Parent Property Recursive Stack Overflow↗2021-09-29
▶

🕵️Threat Intelligence

1
Qualys
Microsoft and Adobe Patch Tuesday (September 2021) – Microsoft 60 Vulnerabilities with 3 Critical, Adobe 61 Vulnerabilities↗2021-09-14
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CVE-2021-39846 — Stack-based Buffer Overflow in Adobe | cvebase