CVE-2026-5314: Out-of-Bounds Read in Nothings stb
CVE-2026-5314 is an out-of-bounds read vulnerability in the stb_truetype. h library of Nothings stb up to version 1. 26. It affects the function stbtt_InitFont_internal within the TTF File Handler component. The vulnerability can be triggered remotely by manipulating input, potentially leading to reading memory outside intended bounds. The vendor has not responded to the disclosure, and no patch or fix is currently available. The CVSS 4. 0 base score is 5. 3, indicating a medium severity level. Exploit code has been made public, but no known exploits in the wild have been reported.
AI Analysis
Technical Summary
This vulnerability involves an out-of-bounds read in the stbtt_InitFont_internal function of the stb_truetype.h library, part of the Nothings stb project up to version 1.26. The flaw allows remote attackers to cause the software to read memory beyond allocated boundaries by manipulating input data. This can lead to potential information disclosure or application instability. The vulnerability has a CVSS 4.0 score of 5.3 (medium severity), with no privileges required and no user interaction needed for exploitation. The vendor was contacted but has not issued a response or patch. Exploit code is publicly available, increasing the risk of exploitation. No official remediation or patch links are provided, and the product is not a cloud service.
Potential Impact
The vulnerability allows remote attackers to perform out-of-bounds reads in the affected function, which may lead to information disclosure or application crashes. The medium CVSS score reflects a moderate impact, with no privilege or user interaction required. Although exploit code is public, no active exploitation in the wild has been confirmed. Lack of vendor response means no official fix or mitigation is currently available.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since the vendor has not responded and no official patch is available, users should consider mitigating exposure by avoiding untrusted input to the affected function or library. Monitor for updates from the vendor or community for any forthcoming fixes or workarounds.
CVE-2026-5314: Out-of-Bounds Read in Nothings stb
Description
CVE-2026-5314 is an out-of-bounds read vulnerability in the stb_truetype. h library of Nothings stb up to version 1. 26. It affects the function stbtt_InitFont_internal within the TTF File Handler component. The vulnerability can be triggered remotely by manipulating input, potentially leading to reading memory outside intended bounds. The vendor has not responded to the disclosure, and no patch or fix is currently available. The CVSS 4. 0 base score is 5. 3, indicating a medium severity level. Exploit code has been made public, but no known exploits in the wild have been reported.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves an out-of-bounds read in the stbtt_InitFont_internal function of the stb_truetype.h library, part of the Nothings stb project up to version 1.26. The flaw allows remote attackers to cause the software to read memory beyond allocated boundaries by manipulating input data. This can lead to potential information disclosure or application instability. The vulnerability has a CVSS 4.0 score of 5.3 (medium severity), with no privileges required and no user interaction needed for exploitation. The vendor was contacted but has not issued a response or patch. Exploit code is publicly available, increasing the risk of exploitation. No official remediation or patch links are provided, and the product is not a cloud service.
Potential Impact
The vulnerability allows remote attackers to perform out-of-bounds reads in the affected function, which may lead to information disclosure or application crashes. The medium CVSS score reflects a moderate impact, with no privilege or user interaction required. Although exploit code is public, no active exploitation in the wild has been confirmed. Lack of vendor response means no official fix or mitigation is currently available.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since the vendor has not responded and no official patch is available, users should consider mitigating exposure by avoiding untrusted input to the affected function or library. Monitor for updates from the vendor or community for any forthcoming fixes or workarounds.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulDB
- Date Reserved
- 2026-04-01T12:40:03.522Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 69cd9ad5e6bfc5ba1d063678
Added to database: 4/1/2026, 10:23:17 PM
Last enriched: 4/10/2026, 12:11:18 AM
Last updated: 5/16/2026, 8:11:14 AM
Views: 82
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