GL
Product
Glibc
by Gnu · last CVE Apr 28, 2026
On CISA KEVExploited in the wild
163
CVEs
1
On KEV
9.8
Max CVSS
0
New 30D
Severity mix
Critical 22High 47Medium 31Low 2
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CVECVSSEPSSPublishedSummary · affected versions
CVE-2023-4911
In wildKEV
7.8
64%
Oct 3
Glibc: buffer overflow in ld.so leading to privilege escalation
Affected: 2.34 before 2.39
CVE-2026-0861
8.4
0%
Jan 14
Integer overflow in memalign leads to heap corruption
Affected: 2.30 through 2.42
CVE-2024-33599
8.1
1%
May 6
nscd: Stack-based buffer overflow in netgroup cache
Affected: 2.15 before 2.40
CVE-2020-6096
8.1
5%
Apr 1
An exploitable signed comparison vulnerability exists in the ARMv7 memcpy() implementation of GNU glibc 2.30.9000
Affected: through 2.31
CVE-2017-17426
8.1
2%
Dec 5
The malloc function in the GNU C Library (aka glibc or libc6) 2.26 could return a memory block that is too small if an attempt is made to allocate an object whose size is close to…
Affected: 2.26
CVE-2015-8983
8.1
4%
Mar 20
Integer overflow in the _IO_wstr_overflow function in libio/wstrops.c in the GNU C Library (aka glibc or libc6) before 2.22 allows context-dependent attackers to cause a denial of…
Affected: through 2.21
CVE-2015-8982
8.1
4%
Mar 15
Integer overflow in the strxfrm function in the GNU C Library (aka glibc or libc6) before 2.21 allows context-dependent attackers to cause a denial of service (crash) or possibly…
Affected: through 2.20
CVE-2015-7547
8.1
91%
Feb 18
Multiple stack-based buffer overflows in the (1) send_dg and (2) send_vc functions in the libresolv library in the GNU C Library (aka glibc or libc6) before 2.23 allow remote…
Affected: 2.9; 2.10; 2.10.1; 2.11; 2.11.1; 2.11.2; +15 more
CVE-2025-4802
7.8
1%
May 16
Untrusted LD_LIBRARY_PATH environment variable vulnerability in the GNU C Library version 2.27 to 2.38 allows attacker controlled loading of dynamically shared library in…
Affected: 2.27 through 2.38
CVE-2023-6246
7.8
5%
Jan 31
Glibc: heap-based buffer overflow in __vsyslog_internal()
Affected: 2.36 before 2.39
CVE-2021-3999
7.8
1%
Aug 24
A flaw was found in glibc
Affected: before 2.31
CVE-2019-6488
7.8
0%
Jan 18
The string component in the GNU C Library (aka glibc or libc6) through 2.28, when running on the x32 architecture, incorrectly attempts to use a 64-bit register for size_t in…
Affected: through 2.28
CVE-2018-11237
7.8
1%
May 18
An AVX-512-optimized implementation of the mempcpy function in the GNU C Library (aka glibc or libc6) 2.27 and earlier may write data beyond the target buffer, leading to a buffer…
Affected: through 2.27
CVE-2017-1000408
7.8
1%
Feb 1
A memory leak in glibc 2.1.1 (released on May 24, 1999) can be reached and amplified through the LD_HWCAP_MASK environment variable
Affected: 2.1.1
CVE-2018-1000001
7.8
13%
Jan 31
In glibc 2.26 and earlier there is confusion in the usage of getcwd() by realpath() which can be used to write before the destination buffer leading to a buffer underflow and…
Affected: through 2.26
CVE-2017-16997
7.8
3%
Dec 18
elf/dl-load.c in the GNU C Library (aka glibc or libc6) 2.19 through 2.26 mishandles RPATH and RUNPATH containing $ORIGIN for a privileged (setuid or AT_SECURE) program, which…
Affected: 2.19; 2.20; 2.21; 2.22; 2.23; 2.25; +1 more
CVE-2017-1000366
7.8
3%
Jun 19
glibc contains a vulnerability that allows specially crafted LD_LIBRARY_PATH values to manipulate the heap/stack, causing them to alias, potentially resulting in arbitrary code…
Affected: through 2.25
CVE-2026-5928
7.5
0%
Apr 20
Potential buffer under-read in ungetwc
Affected: through 2.43
CVE-2026-4046
7.5
0%
Mar 30
iconv crash due to assertion failure with untrusted input
Affected: through 2.43
CVE-2026-4437
7.5
0%
Mar 20
gethostbyaddr and gethostbyaddr_r may incorrectly handle DNS response
Affected: 2.34 through 2.43
CVE-2025-15281
7.5
0%
Jan 20
wordexp with WRDE_REUSE and WRDE_APPEND may return uninitialized memory
Affected: 2.0 before 2.43
CVE-2026-0915
7.5
1%
Jan 15
getnetbyaddr and getnetbyaddr_r leak stack contents to DNS resovler
Affected: 2.0 through 2.42
CVE-2023-6779
7.5
3%
Jan 31
Glibc: off-by-one heap-based buffer overflow in __vsyslog_internal()
Affected: 2.37 before 2.39
CVE-2023-5156
7.5
2%
Sep 25
Glibc: dos due to memory leak in getaddrinfo.c
Affected: 2.34 before 2.39
CVE-2021-3998
7.5
2%
Aug 24
A flaw was found in glibc
Affected: 2.33 before 2.35
CVE-2021-43396
7.5
3%
Nov 4
In iconvdata/iso-2022-jp-3.c in the GNU C Library (aka glibc) 2.34, remote attackers can force iconv() to emit a spurious '\0' character via crafted ISO-2022-JP-3 data that is…
Affected: 2.34
CVE-2021-38604
7.5
4%
Aug 12
In librt in the GNU C Library (aka glibc) through 2.34, sysdeps/unix/sysv/linux/mq_notify.c mishandles certain NOTIFY_REMOVED data, leading to a NULL pointer dereference
Affected: through 2.34
CVE-2021-3326
7.5
4%
Jan 27
The iconv function in the GNU C Library (aka glibc or libc6) 2.32 and earlier, when processing invalid input sequences in the ISO-2022-JP-3 encoding, fails an assertion in the…
Affected: through 2.32.0
CVE-2020-29573
7.5
3%
Dec 5
sysdeps/i386/ldbl2mpn.c in the GNU C Library (aka glibc or libc6) before 2.23 on x86 targets has a stack-based buffer overflow if the input to any of the printf family of…
Affected: before 2.23
CVE-2019-9192
7.5
2%
Feb 26
In the GNU C Library (aka glibc or libc6) through 2.29, check_dst_limits_calc_pos_1 in posix/regexec.c has Uncontrolled Recursion, as demonstrated by '(|)(\\1\\1)*' in grep, a…
Affected: through 2.29
CVE-2018-20796
7.5
6%
Feb 26
In the GNU C Library (aka glibc or libc6) through 2.29, check_dst_limits_calc_pos_1 in posix/regexec.c has Uncontrolled Recursion, as demonstrated by '(\227|)(\\1\\1|t1|\\\2537)+'…
Affected: through 2.29
CVE-2009-5155
7.5
4%
Feb 26
In the GNU C Library (aka glibc or libc6) before 2.28, parse_reg_exp in posix/regcomp.c misparses alternatives, which allows attackers to cause a denial of service (assertion…
Affected: before 2.28
CVE-2018-19591
7.5
6%
Dec 4
In the GNU C Library (aka glibc or libc6) through 2.28, attempting to resolve a crafted hostname via getaddrinfo() leads to the allocation of a socket descriptor that is not…
Affected: through 2.28
CVE-2015-5180
7.5
6%
Jun 27
res_query in libresolv in glibc before 2.25 allows remote attackers to cause a denial of service (NULL pointer dereference and process crash)
Affected: through 2.24
CVE-2017-8804
7.5
8%
May 7
The xdr_bytes and xdr_string functions in the GNU C Library (aka glibc or libc6) 2.25 mishandle failures of buffer deserialization, which allows remote attackers to cause a denial…
Affected: 2.25
CVE-2016-5417
7.5
3%
Feb 17
Memory leak in the __res_vinit function in the IPv6 name server management code in libresolv in GNU C Library (aka glibc or libc6) before 2.24 allows remote attackers to cause a…
Affected: through 2.23
CVE-2016-6323
7.5
4%
Oct 7
The makecontext function in the GNU C Library (aka glibc or libc6) before 2.25 creates execution contexts incompatible with the unwinder on ARM EABI (32-bit) platforms, which…
Affected: through 2.24
CVE-2016-3706
7.5
6%
Jun 10
Stack-based buffer overflow in the getaddrinfo function in sysdeps/posix/getaddrinfo.c in the GNU C Library (aka glibc or libc6) allows remote attackers to cause a denial of…
Affected: before 2.23
CVE-2016-3075
7.5
7%
Jun 1
Stack-based buffer overflow in the nss_dns implementation of the getnetbyname function in GNU C Library (aka glibc) before 2.24 allows context-dependent attackers to cause a…
Affected: through 2.23
CVE-2016-1234
7.5
5%
Jun 1
Stack-based buffer overflow in the glob implementation in GNU C Library (aka glibc) before 2.24, when GLOB_ALTDIRFUNC is used, allows context-dependent attackers to cause a denial…
Affected: before 2.24
CVE-2024-33602
7.4
0%
May 6
nscd: netgroup cache assumes NSS callback uses in-buffer strings
Affected: 2.15 before 2.40
CVE-2026-5435
7.3
0%
Apr 28
Potential buffer overflow in ns_sprintrrf TSIG handling path
Affected: 2.2 and later
CVE-2024-33601
7.3
1%
May 6
nscd: netgroup cache may terminate daemon on memory allocation failure
Affected: 2.15 before 2.40
CVE-2024-2961
7.3
88%
Apr 17
The iconv() function in the GNU C Library versions 2.39 and older may overflow the output buffer passed to it by up to 4 bytes when converting strings to the ISO-2022-CN-EXT…
Affected: 2.1.93 before 2.40
CVE-2020-1752
7.0
1%
Apr 30
A use-after-free vulnerability introduced in glibc upstream version 2.14 was found in the way the tilde expansion was carried out
Affected: before 2.32.0
CVE-2020-1751
7.0
1%
Apr 17
An out-of-bounds write vulnerability was found in glibc before 2.31 when handling signal trampolines on PowerPC
Affected: before 2.31
CVE-2017-1000409
7.0
1%
Feb 1
A buffer overflow in glibc 2.5 (released on September 29, 2006) and can be triggered through the LD_LIBRARY_PATH environment variable
Affected: 2.5
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