Pcapplusplus: Use-of-uninitialized-value in pcpp::byteArrayToHexString
OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=491288647 ``` Crash type: Use-of-uninitialized-value Crash state: pcpp::byteArrayToHexString pcpp::PacketTrailerLayer::toString FuzzTarget.cpp ```
AI Analysis
Technical Summary
The vulnerability is a use-of-uninitialized-value detected in the pcpp::byteArrayToHexString function, as reported by OSS-Fuzz. The crash occurs when the PacketTrailerLayer's toString method calls this function, leading to undefined behavior due to reading uninitialized memory. The affected versions are exactly 24.09, 25.05, and 26.07. No CVSS score is provided. The issue has been patched, though no direct patch links are included in the provided data.
Potential Impact
The impact involves potential crashes or undefined behavior in applications using the affected versions of Pcapplusplus due to uninitialized memory reads. There is no indication of active exploitation in the wild or further impact such as code execution or data leakage.
Mitigation Recommendations
A patch is available for this vulnerability. Users should upgrade from versions 24.09, 25.05, and 26.07 to patched versions once available. Since the vendor advisory or patch links are not provided, users should consult the official Pcapplusplus repository or OSS-Fuzz reports for the latest fixed releases.
Pcapplusplus: Use-of-uninitialized-value in pcpp::byteArrayToHexString
Description
OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=491288647 ``` Crash type: Use-of-uninitialized-value Crash state: pcpp::byteArrayToHexString pcpp::PacketTrailerLayer::toString FuzzTarget.cpp ```
Affected software
pkg:generic/pcapplusplusRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability is a use-of-uninitialized-value detected in the pcpp::byteArrayToHexString function, as reported by OSS-Fuzz. The crash occurs when the PacketTrailerLayer's toString method calls this function, leading to undefined behavior due to reading uninitialized memory. The affected versions are exactly 24.09, 25.05, and 26.07. No CVSS score is provided. The issue has been patched, though no direct patch links are included in the provided data.
Potential Impact
The impact involves potential crashes or undefined behavior in applications using the affected versions of Pcapplusplus due to uninitialized memory reads. There is no indication of active exploitation in the wild or further impact such as code execution or data leakage.
Mitigation Recommendations
A patch is available for this vulnerability. Users should upgrade from versions 24.09, 25.05, and 26.07 to patched versions once available. Since the vendor advisory or patch links are not provided, users should consult the official Pcapplusplus repository or OSS-Fuzz reports for the latest fixed releases.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- OSV-2026-386
- Osv Schema Version
- 1.7.5
- Ecosystems
- ["OSS-Fuzz"]
Threat ID: 6a75f706bf8831d53984e35e
Added to database: 08/07/2026, 15:17:26 UTC
Last enriched: 08/07/2026, 15:19:03 UTC
Last updated: 09/08/2026, 08:46:54 UTC
Views: 14
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