CVE-2026-15003: Out-of-bounds Read in Red Hat Red Hat Hardened Images
A flaw was found in the GNU Binutils (Binary Utilities) linker. This vulnerability, a heap-buffer-overflow read (CWE-125), occurs when the linker processes a specially crafted 32-bit XCOFF (Extended Common Object File Format) object file. An attacker could exploit this by providing a malicious file, leading to an out-of-bounds read of memory. This can result in information disclosure, potentially revealing sensitive heap data, and a Denial of Service (DoS) due to the linker crashing.
AI Analysis
Technical Summary
This vulnerability is a heap-buffer-overflow read (CWE-125) in the GNU Binutils linker when handling specially crafted 32-bit XCOFF object files. An attacker providing a malicious file could cause the linker to read memory out-of-bounds, potentially disclosing sensitive heap data and causing a denial of service by crashing the linker. Red Hat has issued security updates for the binutils RPMs in Red Hat Hardened Images to fix this issue, specifically updating to binutils-2.46.1-1.1.hum1 and related packages.
Potential Impact
Successful exploitation can result in information disclosure of sensitive heap data and denial of service due to the linker crashing. The CVSS 3.1 score is 5.6 (medium severity), reflecting local attack vector with low privileges required and user interaction needed, with impact on confidentiality and availability but not integrity.
Mitigation Recommendations
Red Hat has released updated binutils packages (binutils-2.46.1-1.1.hum1 and related) that fix this vulnerability. Users of Red Hat Hardened Images should apply these security updates promptly. Patch status is confirmed by the Red Hat advisory. No additional mitigations are specified or required beyond applying the official update.
CVE-2026-15003: Out-of-bounds Read in Red Hat Red Hat Hardened Images
Description
A flaw was found in the GNU Binutils (Binary Utilities) linker. This vulnerability, a heap-buffer-overflow read (CWE-125), occurs when the linker processes a specially crafted 32-bit XCOFF (Extended Common Object File Format) object file. An attacker could exploit this by providing a malicious file, leading to an out-of-bounds read of memory. This can result in information disclosure, potentially revealing sensitive heap data, and a Denial of Service (DoS) due to the linker crashing.
CVSS v3.1
Score 5.6medium
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability is a heap-buffer-overflow read (CWE-125) in the GNU Binutils linker when handling specially crafted 32-bit XCOFF object files. An attacker providing a malicious file could cause the linker to read memory out-of-bounds, potentially disclosing sensitive heap data and causing a denial of service by crashing the linker. Red Hat has issued security updates for the binutils RPMs in Red Hat Hardened Images to fix this issue, specifically updating to binutils-2.46.1-1.1.hum1 and related packages.
Potential Impact
Successful exploitation can result in information disclosure of sensitive heap data and denial of service due to the linker crashing. The CVSS 3.1 score is 5.6 (medium severity), reflecting local attack vector with low privileges required and user interaction needed, with impact on confidentiality and availability but not integrity.
Mitigation Recommendations
Red Hat has released updated binutils packages (binutils-2.46.1-1.1.hum1 and related) that fix this vulnerability. Users of Red Hat Hardened Images should apply these security updates promptly. Patch status is confirmed by the Red Hat advisory. No additional mitigations are specified or required beyond applying the official update.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- redhat
- Date Reserved
- 2026-07-07T20:18:49.308Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Vendor Advisory Urls
- [{"url":"https://access.redhat.com/security/cve/CVE-2026-15003","vendor":"Red Hat"}]
Threat ID: 6a675f279c2644c7f820eb83
Added to database: 07/27/2026, 13:37:43 UTC
Last enriched: 07/29/2026, 23:33:24 UTC
Last updated: 09/10/2026, 18:12:26 UTC
Views: 59
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.