Red Hat Security Advisory: A Subscription Management tool for finding and reporting Red Hat product usage
Red Hat Discovery, also known as Discovery, is an inspection and reporting tool that finds, identifies, and reports environment data, or facts, such as the number of physical and virtual systems on a network, their operating systems, and relevant configuration data stored within them. Discovery also identifies and reports more detailed facts for some versions of key Red Hat packages and products that it finds in the network.
AI Analysis
Technical Summary
A flaw in Emacs allows arbitrary code execution via unsafe macro expansion when a user opens an untrusted Emacs Lisp source code file. This is triggered if the user has elisp-completion-at-point configured or automatic error checking enabled (e.g., Flymake or Flycheck). An attacker must trick the user into opening a maliciously crafted Emacs Lisp file containing a harmful macro definition. The vulnerability is identified as CWE-94 (Improper Control of Generation of Code) and can lead to execution of unauthorized code, compromising confidentiality, integrity, and availability. Red Hat rates this vulnerability as moderate severity, with a CVSS 3.1 base score of 7.8 (AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H). No known exploits in the wild have been reported. Mitigation includes not opening untrusted Emacs Lisp files and disabling the auto-completion and error checking features when handling such files.
Potential Impact
Successful exploitation allows an attacker to execute arbitrary code on the affected system by tricking a user into opening a crafted Emacs Lisp source file. This can lead to full compromise of confidentiality, integrity, and availability of the system where Emacs is running. The vulnerability requires local user interaction and low attack complexity, but no privileges are required. There are no known exploits in the wild at this time.
Mitigation Recommendations
Red Hat advises not to open or view untrusted Emacs Lisp source code files. Disabling elisp-completion-at-point and automatic error checking tools such as Flymake or Flycheck when handling untrusted Emacs Lisp files will mitigate the vulnerability. No official patch status is provided in the advisory; therefore, patch status is not yet confirmed — check the Red Hat advisory for current remediation guidance.
Red Hat Security Advisory: A Subscription Management tool for finding and reporting Red Hat product usage
Description
Red Hat Discovery, also known as Discovery, is an inspection and reporting tool that finds, identifies, and reports environment data, or facts, such as the number of physical and virtual systems on a network, their operating systems, and relevant configuration data stored within them. Discovery also identifies and reports more detailed facts for some versions of key Red Hat packages and products that it finds in the network.
Affected software
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
A flaw in Emacs allows arbitrary code execution via unsafe macro expansion when a user opens an untrusted Emacs Lisp source code file. This is triggered if the user has elisp-completion-at-point configured or automatic error checking enabled (e.g., Flymake or Flycheck). An attacker must trick the user into opening a maliciously crafted Emacs Lisp file containing a harmful macro definition. The vulnerability is identified as CWE-94 (Improper Control of Generation of Code) and can lead to execution of unauthorized code, compromising confidentiality, integrity, and availability. Red Hat rates this vulnerability as moderate severity, with a CVSS 3.1 base score of 7.8 (AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H). No known exploits in the wild have been reported. Mitigation includes not opening untrusted Emacs Lisp files and disabling the auto-completion and error checking features when handling such files.
Potential Impact
Successful exploitation allows an attacker to execute arbitrary code on the affected system by tricking a user into opening a crafted Emacs Lisp source file. This can lead to full compromise of confidentiality, integrity, and availability of the system where Emacs is running. The vulnerability requires local user interaction and low attack complexity, but no privileges are required. There are no known exploits in the wild at this time.
Mitigation Recommendations
Red Hat advises not to open or view untrusted Emacs Lisp source code files. Disabling elisp-completion-at-point and automatic error checking tools such as Flymake or Flycheck when handling untrusted Emacs Lisp files will mitigate the vulnerability. No official patch status is provided in the advisory; therefore, patch status is not yet confirmed — check the Red Hat advisory for current remediation guidance.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_security_advisory
- Csaf Version
- 2.0
- Publisher
- Red Hat Product Security
- Advisory Id
- RHSA-2025:11487
- Cve Count
- 6
- Additional Cves
- ["CVE-2025-3576","CVE-2025-4802","CVE-2025-5702","CVE-2025-6020","CVE-2025-25724"]
Threat ID: 6a1f4e87e29bf47b500805cc
Added to database: 06/02/2026, 21:43:35 UTC
Last enriched: 08/10/2026, 21:03:19 UTC
Last updated: 09/10/2026, 19:36:49 UTC
Views: 91
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