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Gcc: out-of-bounds read in std::from_chars

CVSS 3.1 3.7 LOWCheck source for fixed versionsKEV status unknown

cve-program · CVE-2026-115456

Published

A flaw was found in gcc. An attacker could cause a Denial of Service (DoS) by passing a string that is not null-terminated to the std::from_chars() function in the libstdc++ library. This issue triggers an out-of-bounds read beyond the allocated buffer, potentially leading to invalid data parsing or an application crash.

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Affected versions, risk and source history

Exploitation and risk

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cve-program · CVE-2026-115456

Published

Gcc: out-of-bounds read in std::from_chars

A flaw was found in gcc. An attacker could cause a Denial of Service (DoS) by passing a string that is not null-terminated to the std::from_chars() function in the libstdc++ library. This issue triggers an out-of-bounds read beyond the allocated buffer, potentially leading to invalid data parsing or an application crash.

Source published
30 Oct 2026 08:21:50 UTC
Source modified
11 Nov 2026 19:24:21 UTC
Saved here
11 Nov 2026 21:56:40 UTC
Source terms
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Original source record · Cite this exact observation · Complete original publisher JSON

Source: cve-program · CVE Program Terms of Use. The publisher's wording is preserved. ChangeIntel groups the information and labels changes. The JSON record includes additional source fields.

CVSS 3.1 · 3.7 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L

ChangeIntel

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Sources read 12 Nov 18:36 UTC · 273 of 275 readable · 271 fully read · documentation 469/469 current