CVE-2022-27791
Published: 11 May 2022
Summary
CVE-2022-27791 is a high-severity Stack-based Buffer Overflow (CWE-121) vulnerability in Apple Macos. Its CVSS base score is 7.8 (High).
Operationally, ranked in the top 9.3% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
Deeper analysis
Acrobat Reader DC versions 22.001.20085 and earlier, 20.005.3031x and earlier, and 17.012.30205 and earlier are affected by a stack-based buffer overflow vulnerability (CVE-2022-27791) that arises during insecure processing of a font. The flaw is tracked under CWE-121 and CWE-787 and carries a CVSS 3.0 score of 7.8, reflecting local access with low attack complexity but requiring user interaction.
An attacker can exploit the issue by supplying a crafted PDF file that triggers the overflow when opened. Successful exploitation grants arbitrary code execution in the context of the current user; the attack cannot be performed remotely without the victim first opening the malicious document.
The referenced Adobe advisory APSB22-16 addresses the vulnerability and directs users to apply the vendor-supplied patches for the affected Acrobat Reader DC releases. The associated EPSS score has remained flat at 0.0584 with no material increase after disclosure.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2022-32286
Vulnerability details
Acrobat Reader DC versions 22.001.20085 (and earlier), 20.005.3031x (and earlier) and 17.012.30205 (and earlier) is affected by a stack-based buffer overflow vulnerability due to insecure processing of a font, potentially resulting in arbitrary code execution in the context of the…
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current user. Exploitation requires user interaction in that a victim must open a crafted .pdf file
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
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.
Out-of-bounds writes that corrupt control flow or inject shellcode are rendered non-executable by the same memory protections.