GNU has 76 CVEs on record between 2021 and 2026. Disclosure cadence is accelerating: 19 in the last 90 days against 11 in the 90 before. The busiest recent month was September 2026 with 14. The median CVSS is 6.5 (medium). None have a confirmed exploitation report. The dominant weakness classes are CWE-787 (25) and CWE-476 (16). Most affected products: libredwg (23), binutils (18), grub2 (14).
CVEs per month
Last 12 months, by publish date
- Exploited share
- 0% vs 1% corpus
- Median CVSS
- 6.5
- Publish → KEV
- —
- Last 90 days
- 19 prev 11
Weakness classes
Products
- libredwg 23
- binutils 18
- grub2 14
- gnutls 8
- tar 3
- patch 2
Worst active — by depth score
CVE-2024-53920High· 7.8In elisp-mode.el in GNU Emacs before 30.1, a user who chooses to invoke elisp-completion-at-point (for code completion) on untrusted Emacs Lisp source code can trigger unsafe Lisp macro expansion that allows attackers to execute arbitrar…55CVE-2026-91752High· 7.5GNU libextractor before 1.15 contains a stack-based buffer overflow vulnerability in the process_star_office function that sizes a variable-length stack array from attacker-controlled OLE2 stream data53CVE-2020-21844High· 8.8GNU LibreDWG 0.10 is affected by: memcpy-param-overlap49CVE-2020-21843High· 8.8A heap based buffer overflow vulnerability exits in GNU LibreDWG 0.10 via bit_read_RC ../../src/bits.c:318.49CVE-2020-21842High· 8.8A heap based buffer overflow vulnerability exists in GNU LibreDWG 0.10 via read_2004_section_revhistory ../../src/decode.c:3051.49
GNU vulnerabilities
CVEs affecting GNU, newest first. Open any entry for full detail, references, and exploit status.
76 CVEsRSS
CVE-2026-91782Low· 3.3A vulnerability was detected in GNU Binutils 2.47
A vulnerability was detected in GNU Binutils 2.47. Affected by this vulnerability is the function elf_x86_allocate_dynrelocs of the file bfd/elfxx-x86.c of the component Dynamic Relocation Allocation. The manipulation results in null poi…
CVE-2026-91781Low· 3.3PoCA security vulnerability has been detected in GNU Binutils 2.47
A security vulnerability has been detected in GNU Binutils 2.47. Affected is the function elf_x86_64_common_section_index of the file bfd/elf64-x86-64.c of the component ELF Section Handler. The manipulation leads to null pointer derefer…
CVE-2026-91780Low· 3.3PoCA weakness has been identified in GNU Binutils 2.47
A weakness has been identified in GNU Binutils 2.47. This impacts the function elf_link_add_object_symbols of the file bfd/elflink.c. Executing a manipulation can lead to null pointer dereference. The attack needs to be launched locally.…
CVE-2026-91779Low· 3.3PoCA security flaw has been discovered in GNU Binutils 2.47
A security flaw has been discovered in GNU Binutils 2.47. This affects the function _bfd_elf_eh_frame_section_offset of the file bfd/elf-eh-frame.c of the component Eh Frame Handler. Performing a manipulation results in null pointer dere…
CVE-2026-91752High· 7.5PoCGNU libextractor before 1.15 contains a stack-based buffer overflow vulnerability in the process_star_office function that sizes a variable-length stack array from attacker-controlled OLE2 stream data
GNU libextractor before 1.15 contains a stack-based buffer overflow vulnerability in the process_star_office function that sizes a variable-length stack array from attacker-controlled OLE2 stream data. Attackers can craft malicious StarO…
CVE-2026-90829Medium· 5.3PoCA weakness has been identified in GNU Binutils 2.47
A weakness has been identified in GNU Binutils 2.47. This issue affects the function bfd_elf_set_group_contents of the file bfd/elf.c of the component SHT_GROUP Section Handler. Executing a manipulation can lead to null pointer dereferen…
CVE-2026-90830Medium· 5.3PoCA security vulnerability has been detected in GNU Binutils 2.47
A security vulnerability has been detected in GNU Binutils 2.47. Impacted is the function _bfd_write_merged_section of the file bfd/merge.c of the component Section Merge. The manipulation leads to null pointer dereference. The attack ne…
CVE-2026-90831Medium· 5.3A vulnerability was detected in GNU Binutils 2.47
A vulnerability was detected in GNU Binutils 2.47. The affected element is the function _bfd_elf_strtab_delref of the file bfd/elf-strtab.c of the component ELF String Table. The manipulation results in memory corruption. The attack requ…
CVE-2026-90828Medium· 5.3PoCA security flaw has been discovered in GNU Binutils 2.47
A security flaw has been discovered in GNU Binutils 2.47. This vulnerability affects the function elf_orphan_compatible of the file ld/ldelf.c of the component ELF Orphan Section Handler. Performing a manipulation results in null pointer…
CVE-2026-90804Medium· 4.8PoCA vulnerability was detected in GNU Binutils 2.47
A vulnerability was detected in GNU Binutils 2.47. Affected by this issue is the function _bfd_elf_write_section_eh_frame of the file bfd/elf-eh-frame.c of the component Eh Frame Section Handler. Performing a manipulation of the argument…
CVE-2026-90803Medium· 5.3PoCA security vulnerability has been detected in GNU Binutils 2.47
A security vulnerability has been detected in GNU Binutils 2.47. Affected by this vulnerability is the function elf_x86_64_relocate_section of the file bfd/elf64-x86-64.c of the component ld. Such manipulation of the argument roff leads …
CVE-2026-90802Medium· 4.4PoCA weakness has been identified in GNU Binutils 2.47
A weakness has been identified in GNU Binutils 2.47. Affected is the function bfd_putl64 of the file bfd/libbfd.c of the component ld. This manipulation causes null pointer dereference. The attack requires local access. The exploit has b…
CVE-2026-90801Medium· 5.3PoCA security flaw has been discovered in GNU Binutils 2.47
A security flaw has been discovered in GNU Binutils 2.47. This impacts the function cache_bwrite of the file bfd/cache.c of the component ld. The manipulation of the argument nbytes results in buffer overflow. The attack requires a local…
CVE-2026-90622Low· 3.3PoCA security flaw has been discovered in GNU libredwg 0.13.4
A security flaw has been discovered in GNU libredwg 0.13.4. This impacts the function DWG_TABLE of the file src/dwg.spec of the component Layer Encoding. Performing a manipulation results in null pointer dereference. The attack needs to …
CVE-2026-18508Medium· 4.4A flaw was found in GNU tar
A flaw was found in GNU tar. When extracting an archive with the --one-top-level option, hardlink targets are not confined to the designated top-level directory and may resolve relative to the extraction working directory. A crafted arch…
CVE-2026-18477Medium· 4.4A TOCTOU (Time-of-Check Time-of-Use) vulnerability in GNU tar's incremental dumpdir 'X' rename handling allows a local attacker with write access to a directory being backed up to influence the restore process if the attacker has access …
A TOCTOU (Time-of-Check Time-of-Use) vulnerability in GNU tar's incremental dumpdir 'X' rename handling allows a local attacker with write access to a directory being backed up to influence the restore process if the attacker has access …
CVE-2026-56289Medium· 5.5GNU patch is vulnerable to a denial of service (DoS) due to improper validation of hunk (single block of changes in diff) line offsets in unified-diff input
GNU patch is vulnerable to a denial of service (DoS) due to improper validation of hunk (single block of changes in diff) line offsets in unified-diff input. A specially crafted patch can specify an extremely large line number, causing t…
CVE-2026-56288Medium· 5.5GNU patch is vulnerable to a NULL pointer dereference when processing a specially crafted unified-diff patch file
GNU patch is vulnerable to a NULL pointer dereference when processing a specially crafted unified-diff patch file. Improper handling of consecutive end-of-file newline markers can corrupt internal hunk (single block of changes in diff) d…
CVE-2026-41992High· 7.5⚖ disputedGNU gzip contains a global buffer overflow vulnerability in the LZH decompression logic caused by improper reuse of shared global state between different decompression formats within a single execution
GNU gzip contains a global buffer overflow vulnerability in the LZH decompression logic caused by improper reuse of shared global state between different decompression formats within a single execution. GNU gzip maintains a global array …
CVE-2026-56968Low· 3.7GNU SASL before 2.2.4 lacks sanitization of a short challenge in _gsasl_ntlm_client_step in the NTLM client, which could result in memory disclosure via a crafted server.
GNU SASL before 2.2.4 lacks sanitization of a short challenge in _gsasl_ntlm_client_step in the NTLM client, which could result in memory disclosure via a crafted server.
CVE-2026-42009High· 7.5A flaw was found in gnutls
A flaw was found in gnutls. A remote attacker could exploit an issue in the Datagram Transport Layer Security (DTLS) packet reordering logic. The comparator function, responsible for ordering DTLS packets by sequence numbers, did not cor…
CVE-2026-42010High· 7.1A flaw was found in gnutls
A flaw was found in gnutls. Servers configured with RSA-PSK (Rivest–Shamir–Adleman – Pre-Shared Key) wrongfully matched usernames containing a NUL character with truncated usernames. A remote attacker could exploit this by sending a spec…
CVE-2026-3833Medium· 6.5PoCA flaw was found in gnutls
A flaw was found in gnutls. This vulnerability occurs because gnutls performs case-sensitive comparisons of `nameConstraints` labels, specifically for `dNSName` (DNS) or `rfc822Name` (email) constraints within `excludedSubtrees` or `perm…
CVE-2026-33845High· 7.5A flaw in GnuTLS DTLS handshake parsing allows malformed fragments with zero length and non-zero offset, leading to an integer underflow during reassembly and resulting in an out-of-bounds read
A flaw in GnuTLS DTLS handshake parsing allows malformed fragments with zero length and non-zero offset, leading to an integer underflow during reassembly and resulting in an out-of-bounds read. This issue is remotely exploitable and may…
CVE-2026-6843Medium· 5.5A flaw was found in nano
A flaw was found in nano. A local user could exploit a format string vulnerability in the `statusline()` function. By creating a directory with a name containing `printf` specifiers, the application attempts to display this name, leading…
CVE-2026-6844Medium· 5.5A flaw was found in the `readelf` utility of the binutils package
A flaw was found in the `readelf` utility of the binutils package. A local attacker could exploit two Denial of Service (DoS) vulnerabilities by providing a specially crafted Executable and Linkable Format (ELF) file. One vulnerability, …
CVE-2026-6845Medium· 5.0A flaw was found in binutils, specifically within the `readelf` utility
A flaw was found in binutils, specifically within the `readelf` utility. This vulnerability allows a local attacker to cause a Denial of Service (DoS) by tricking a user into processing a specially crafted Executable and Linkable Format …
CVE-2026-6846High· 7.8A flaw was found in binutils
A flaw was found in binutils. A heap-buffer-overflow vulnerability exists when processing a specially crafted XCOFF (Extended Common Object File Format) object file during linking. A local attacker could trick a user into processing this…
CVE-2026-1584High· 7.5A flaw was found in gnutls
A flaw was found in gnutls. A remote, unauthenticated attacker can exploit this vulnerability by sending a specially crafted ClientHello message with an invalid Pre-Shared Key (PSK) binder value during the TLS handshake. This can lead to…
CVE-2026-5704Medium· 5.0A flaw was found in tar
A flaw was found in tar. A remote attacker could exploit this vulnerability by crafting a malicious archive, leading to hidden file injection with fully attacker-controlled content. This bypasses pre-extraction inspection mechanisms, pot…