CVE-2026-114691Medium· 5.9▾ SunlitA flaw was found in the libstdc++ component of GCC. An attacker who can provide an excessively large element count to a boolean vector (std::vector<bool>) constructor can trigger an integer wrap during internal memory calculations. This …
▾ Sunlit zone — Low / medium · no exploitation signal
impact 32.5 · likelihood 0.1 · exploitation 0
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Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake. The CVSS score shown above comes from the assigning CNA record, not NVD.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CVEORG
0.4%
A flaw was found in the libstdc++ component of GCC. An attacker who can provide an excessively large element count to a boolean vector (std::vector<bool>) constructor can trigger an integer wrap during internal memory calculations. This issue leaves the container in an inconsistent state, leading to out-of-bounds memory access and resulting in an application crash or a Denial of Service (DoS) during subsequent operations.
gcc (all versions)gcc-toolset-15-gcc (all versions)gcc-toolset-16-gcc (all versions)mingw-gcc (all versions)compat-gcc-295compat-gcc-296compat-gcc-32compat-gcc-34gcccompat-gcc-32compat-gcc-34compat-gcc-44gccgcc (all versions)gcc-toolset-14-gcc (all versions)gcc-toolset-15-gcc (all versions)mingw-gcc (all versions)gcc (all versions)gcc-toolset-14-gcc (all versions)gcc-toolset-15-gcc (all versions)gcc-toolset-16-gcc (all versions)mingw-gcc (all versions)gcc (all versions)gcc13 (all versions)openshift/ose-rhel-coreos-8 (all versions)openshift/ose-rhel-coreos-9 (all versions)openshift/ose-rhel-coreos-9 (all versions)Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
Connected by shared product, vendor, weakness, or advisory.
CVE-2026-114690Medium· 6.2Gcc: confirmed out-of-bounds read/write in libstdc++ parallel `std
CVE-2026-115455Medium· 6.5Gcc: stack overflow in std::bitset on libstdc++
CVE-2021-3826Medium· 6.5Heap/stack buffer overflow in the dlang_lname function in d-demangle.c in libiberty allows attackers to potentially cause a denial of service (segmentation fault and crash) via a crafted mangled symbol.
CVE-2019-15847High· 7.5The POWER9 backend in GNU Compiler Collection (GCC) before version 10 could optimize multiple calls of the __builtin_darn intrinsic into a single call, thus reducing the entropy of the random number generator
CVE-2018-12886High· 8.1stack_protect_prologue in cfgexpand.c and stack_protect_epilogue in function.c in GNU Compiler Collection (GCC) 4.1 through 8 (under certain circumstances) generate instruction sequences when targeting ARM targets that spill the address …
CVE-2021-46195Medium· 5.5GCC v12.0 was discovered to contain an uncontrolled recursion via the component libiberty/rust-demangle.c