Vulnerability identifier: #VU8419

Vulnerability risk: High

CVSSv3.1: 8.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: N/A

CWE-ID: CWE-20

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Emacs
Client/Desktop applications / Office applications

Vendor: GNU

Description
The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The weakness exists due to insufficient rendering of MIME text/richtext data. A remote attacker ca submit a specially crafted file and execute arbitrary code with privileges of the current user.

Successful exploitation of the vulnerability may result in system compromise.

Mitigation
Update to version 25.3.

Vulnerable software versions

Emacs: 21.1 - 25.2

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External links
http://debbugs.gnu.org/cgi/bugreport.cgi?bug=28350

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.