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Vulnerabilities of The GNU C Library glibc

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CVE Summary Score Published
CVE-2026-122054 BIG-HKSCS decoding hang on crafted input 5.9 Medium Nov 4, 2026
CVE-2026-84243 The gettext family of functions in the GNU C Library version 2.0 and later accept LANGUAGE environment variable… 7.0 High Oct 30, 2026
CVE-2026-97399 The strncasecmp function in the GNU C Library 2.24 and later optimized for the Power8 architecture may read one byte… 3.7 Low Sep 28, 2026
CVE-2026-95818 A stack-based buffer overflow in the dynamic loader (ld.so) of the GNU C Library (glibc) versions 2.14 through 2.44… 3.6 Low Sep 22, 2026
CVE-2026-86805 A time-of-check to time-of-use (TOCTOU) race condition in the dynamic loader (ld.so) of the GNU C Library (glibc)… 6.3 Medium Sep 22, 2026
CVE-2026-8674 Initializing the DNS stub resolver from an /etc/resolv.conf file, or a LOCALDOMAIN environment variable, whose search… 5.3 Medium Sep 17, 2026
CVE-2026-80489 Converting crafted EUC_JISX0213 input to UCS-4 or the internal wide character encoding, for example with iconv, in the… 5.9 Medium Sep 15, 2026
CVE-2026-77117 Converting crafted SHIFT_JISX0213 input to UCS-4 or the internal wide character encoding, for example with iconv, in the… 5.9 Medium Sep 15, 2026
CVE-2026-19542 Calling tdelete on a sufficiently deep tree in the GNU C Library version 2.1 to 2.44 may write one pointer past the… 5.6 Medium Sep 14, 2026
CVE-2026-19499 Calling strfmon and strfmon_l in the GNU C Library version 2.38 to 2.44 can write past the end of the caller-supplied… 7.7 High Sep 14, 2026
CVE-2026-89092 The nscd service in the GNU C Library 2.3.4 onwards may crash due to a stack overflow when a malicious DNS server… 4.2 Medium Sep 11, 2026
CVE-2026-18374 Passing an effectively empty string to the `,ccs=` syntax extension of the mode argument in the `fopen` function in… 4.9 Medium Aug 27, 2026
CVE-2026-6791 When expanding paths that begin with a tilde (~) followed by a username, the internal parse_tilde function extracts… 6.6 Medium Aug 10, 2026
CVE-2026-6238 The deprecated functions ns_printrrf, ns_printrr and fp_nquery in the GNU C Library version 2.0.1 to version 2.43 fail… 6.5 Medium Apr 28, 2026
CVE-2026-5435 The deprecated functions ns_printrrf, ns_printrr and fp_nquery in the GNU C Library version 2.2 and newer fail to… 7.3 High Apr 28, 2026
CVE-2026-5450 Calling the scanf family of functions with a %mc (malloc'd character match) in the GNU C Library version 2.7 to… 9.8 Critical Apr 20, 2026
CVE-2026-5928 Calling the ungetwc function on a FILE stream with wide characters encoded in a character set that has overlaps… 7.5 High Apr 20, 2026
CVE-2026-5358 The obsolete nis_local_principal function in the GNU C Library version 2.43 and older may overflow a buffer in the… 9.1 Critical Apr 20, 2026
CVE-2026-4046 The iconv() function in the GNU C Library versions 2.43 and earlier may crash due to an assertion failure when… 7.5 High Mar 30, 2026
CVE-2026-4438 Calling gethostbyaddr or gethostbyaddr_r with a configured nsswitch.conf that specifies the library's DNS backend in the… 5.4 Medium Mar 20, 2026
CVE-2026-4437 Calling gethostbyaddr or gethostbyaddr_r with a configured nsswitch.conf that specifies the library's DNS backend in the… 7.5 High Mar 20, 2026
CVE-2026-3904 Calling NSS-backed functions that support caching via nscd may call the nscd client side code and in the GNU C… 6.2 Medium Mar 11, 2026
CVE-2025-15281 Calling wordexp with WRDE_REUSE in conjunction with WRDE_APPEND in the GNU C Library version 2.0 to version 2.42 may… 7.5 High Jan 20, 2026
CVE-2026-0915 Calling getnetbyaddr or getnetbyaddr_r with a configured nsswitch.conf that specifies the library's DNS backend for… 7.5 High Jan 15, 2026
CVE-2026-0861 Passing too large an alignment to the memalign suite of functions (memalign, posix_memalign, aligned_alloc) in the GNU C… 8.4 High Jan 14, 2026