CVE-2025-3155
Open Redirect in Redhat Enterprise Linux Server Aus 8.2 … 9.6
Raw vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:NSummary
CVE-2025-3155 is a high-severity Open Redirect (CWE-601) vulnerability in Redhat Enterprise Linux Server Aus. Its CVSS base score is 7.4 (High).
Operationally, exploitation aligns with the MITRE ATT&CK technique Phishing (T1566); ranked in the top 4% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
The strongest mitigations our analysis identified map to SI-10 (Information Input Validation) and AC-4 (Information Flow Enforcement) — see the control section below for these in your framework.
Deeper analysis AI-assisted summary
Synthesised by an AI model from the NVD description and linked references — a reading aid, not an authoritative source.
A flaw in the Yelp GNOME user help application permits help documents to execute arbitrary scripts. The issue stems from insufficient restrictions on script execution within rendered help content, enabling crafted documents to access and transmit local user files to external locations. The vulnerability carries a CVSS 3.1 score of 7.4 with network attack vector, low complexity, no required privileges, and required user interaction.
An attacker can supply a malicious help document that a victim opens in Yelp, resulting in unauthorized exfiltration of files from the user's environment. Because the attack requires the victim to load the document, it is typically delivered through shared files, web downloads, or other user-initiated channels. The changed scope in the CVSS rating indicates the script execution can affect resources beyond the immediate Yelp process.
Red Hat has published errata RHSA-2025:4450, RHSA-2025:4451, RHSA-2025:4455, RHSA-2025:4456, and RHSA-2025:4457 that address the issue through updated packages. The EPSS score remains flat at 0.0131 with no observed increase after disclosure.
OWASP Top 10 for Web (2025)
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2025-9635
Vulnerability Data
A flaw was found in Yelp. The Gnome user help application allows the help document to execute arbitrary scripts. This vulnerability allows malicious users to input help documents, which may exfiltrate user files to an external environment.
- CWE(s)
Related Threats
MITRE ATT&CK Enterprise Techniques
CVEs Like This One
Affected Assets
Mitigating Controls
Control response
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V3.7.2
Mitigating Controls (NIST 800-53 r5) AI
Input validation directly checks and rejects untrusted redirect targets before they are used in a response.
Information flow enforcement can restrict redirects to only approved/trusted destinations, stopping untrusted user-supplied URLs from being followed.
Mitigating Controls (NIST CSF 2.0) AI
Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.
Secure SDLC practices directly require input validation and untrusted-redirect controls that prevent CWE-601.
Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI
Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.
Preventing access to attacker-controlled or malicious sites stops users from being redirected to untrusted locations via open-redirect or phishing links.