CVE-2021-44703
HighAcrobat Reader DC version 21.007.20099 (and earlier), 20.004.30017 (and earlier) and 17.011.30204 (and earlier) are affected by a stack buffer overflow vulnerability due to insecure handling of a crafted file, potentially resulting in arbitrary code execution in the context of…
Published Jan 17, 2022 · Updated Sep 17, 2024
Key Facts
Patch immediately- CVE-2021-44703 is a high-severity vulnerability (CVSS 7.8 v3.1) affecting Acrobat (Adobe), Acrobat Dc (Adobe), Acrobat Reader (Adobe) and 1 more product.
- It is not listed in any known-exploited vulnerabilities catalog. No public exploit code is known.
- EPSS estimates a 57% probability of exploitation in the next 30 days.
- Fixed versions are available, including Acrobat <=17.011.30204, Acrobat Dc <=21.007.20099, Acrobat Reader <=17.011.30204.
- Brandefense priority: patch immediately, because it is very likely to be exploited soon.
CVSS v3.1
7.8
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS (30-day exploit likelihood)
57%
Higher than 99.0% of all scored CVEs
Exploited in the wild
No known
Not in a known-exploited catalog
Public exploit code
None known
Get the full CVE-2021-44703 brief as a PDF
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Description
Acrobat Reader DC version 21.007.20099 (and earlier), 20.004.30017 (and earlier) and 17.011.30204 (and earlier) are affected by a stack buffer overflow vulnerability due to insecure handling of a crafted file, potentially resulting in arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.
Affected Products
5 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| AcrobatAdobe | See advisory | 17.011.30204 |
| Acrobat DcAdobe | See advisory | 21.007.20099 |
| Acrobat ReaderAdobe | >= unspecified | 17.011.30204 |
| Acrobat Reader DcAdobe | See advisory | 21.007.20099 |
Patched Releases
Acrobat
<=17.011.30204
Acrobat Dc
<=21.007.20099
Acrobat Reader
<=17.011.30204
Acrobat Reader Dc
<=21.007.20099
Timeline
Publicly disclosed
Jan 17, 2022
Last updated
Sep 17, 2024
Weakness Type
- CWE-121 Stack-based Buffer Overflow
- CWE-787 Out-of-bounds Write
References
- advisoryhttps://helpx.adobe.com/security/products/acrobat/apsb22-01.html
- advisoryhttps://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2021-39628
- advisoryhttps://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2021-39633
- advisoryhttps://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2021-39680
- advisoryhttps://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2021-44701
FAQ
Common Questions.
Acrobat Reader DC version 21.007.20099 (and earlier), 20.004.30017 (and earlier) and 17.011.30204 (and earlier) are affected by a stack buffer overflow vulnerability due to insecure handling of a crafted file, potentially resulting in arbitrary code execution in the context of the current user.
Affected: Acrobat (Adobe); Acrobat Dc (Adobe); Acrobat Reader (Adobe) versions >= unspecified, among others. The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
No public exploit code is known.
Fixed versions are available, including Acrobat <=17.011.30204, Acrobat Dc <=21.007.20099, Acrobat Reader <=17.011.30204.
Brandefense priority: patch immediately, because it is very likely to be exploited soon.
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