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10 vulnerabilities found for gawk by GNU
CVE-2026-40553 (GCVE-0-2026-40553)
Vulnerability from nvd – Published: 2026-07-13 12:07 – Updated: 2026-07-13 13:00 X_Open Source
VLAI
EPSS
VEX
Title
Stack-based buffer overflow in gawk
Summary
Buffer overflow vulnerability has been found in "extension/readdir.c" program file of gawk (ftype() routine). This issue could be used to crash the program and potentially to achieve code execution, although the latter has not been confirmed to be feasible. It affects gawk in versions 5.4.0 and below.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-121 - Stack-based Buffer Overflow
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://cgit.git.savannah.gnu.org/cgit/gawk.git/c… | patch |
| https://cert.pl/en/posts/2026/07/CVE-2026-40467 | third-party-advisory |
Date Public
2026-07-13 12:07
Credits
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CVE-2026-40469 (GCVE-0-2026-40469)
Vulnerability from nvd – Published: 2026-07-13 12:07 – Updated: 2026-07-13 13:01 X_Open Source
VLAI
EPSS
VEX
Title
Heap buffer overflow in gawk
Summary
Integer overflow vulnerability has been found in "builtin.c" program file of gawk (do_sub() routine). This issue could be used to overwrite gawk heap metadata and objects causing the program to crash. It affects 32-bit builds of gawk in versions 5.4.0 and below.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-190 - Integer Overflow or Wraparound
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://cgit.git.savannah.gnu.org/cgit/gawk.git/c… | patch |
| https://cert.pl/en/posts/2026/07/CVE-2026-40467 | third-party-advisory |
Date Public
2026-07-13 12:07
Credits
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CVE-2026-40468 (GCVE-0-2026-40468)
Vulnerability from nvd – Published: 2026-07-13 12:07 – Updated: 2026-07-13 13:01 X_Open Source
VLAI
EPSS
VEX
Title
Heap buffer overflow in gawk
Summary
Integer overflow vulnerability has been found in "builtin.c" program file of gawk. This issue may lead to memory exhaustion on the hosting operating system and could be used to overwrite gawk heap metadata and objects with attacker-controlled bytes. It affects gawk in versions 5.4.0 and below.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-190 - Integer Overflow or Wraparound
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://cgit.git.savannah.gnu.org/cgit/gawk.git/c… | patch |
| https://cert.pl/en/posts/2026/07/CVE-2026-40467 | third-party-advisory |
Date Public
2026-07-13 12:07
Credits
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CVE-2026-40467 (GCVE-0-2026-40467)
Vulnerability from nvd – Published: 2026-07-13 12:07 – Updated: 2026-07-13 13:02 X_Open Source
VLAI
EPSS
VEX
Title
Use after free in gawk
Summary
Use After Free vulnerability has been found in "io.c" program file of gawk (do_getline_redir() routine). This issue may lead to a crash. It affects gawk in versions 5.4.0 and below.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-416 - Use After Free
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://cgit.git.savannah.gnu.org/cgit/gawk.git/c… | patch |
| https://cert.pl/en/posts/2026/07/CVE-2026-40467 | third-party-advisory |
Date Public
2026-07-13 12:07
Credits
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CVE-2023-4156 (GCVE-0-2023-4156)
Vulnerability from nvd – Published: 2023-09-25 17:20 – Updated: 2024-09-24 15:36
VLAI
EPSS
VEX
Title
Heap out of bound read in builtin.c
Summary
A heap out-of-bounds read flaw was found in builtin.c in the gawk package. This issue may lead to a crash and could be used to read sensitive information.
Severity
4.4 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-125 - Out-of-bounds Read
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://access.redhat.com/security/cve/CVE-2023-4156 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2215930 | issue-trackingx_refsource_REDHAT |
Impacted products
6 products
| Vendor | Product | Version | |
|---|---|---|---|
| n/a | gawk |
Unaffected:
5.1.1
|
|
| Red Hat | Red Hat Enterprise Linux 6 |
cpe:/o:redhat:enterprise_linux:6 |
|
| Red Hat | Red Hat Enterprise Linux 7 |
cpe:/o:redhat:enterprise_linux:7 |
|
| Red Hat | Red Hat Enterprise Linux 8 |
cpe:/o:redhat:enterprise_linux:8 |
|
| Red Hat | Red Hat Enterprise Linux 9 |
cpe:/o:redhat:enterprise_linux:9 |
|
| Fedora | Fedora |
Date Public
2023-06-19 00:00
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CVE-2026-40553 (GCVE-0-2026-40553)
Vulnerability from cvelistv5 – Published: 2026-07-13 12:07 – Updated: 2026-07-13 13:00 X_Open Source
VLAI
EPSS
VEX
Title
Stack-based buffer overflow in gawk
Summary
Buffer overflow vulnerability has been found in "extension/readdir.c" program file of gawk (ftype() routine). This issue could be used to crash the program and potentially to achieve code execution, although the latter has not been confirmed to be feasible. It affects gawk in versions 5.4.0 and below.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-121 - Stack-based Buffer Overflow
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://cgit.git.savannah.gnu.org/cgit/gawk.git/c… | patch |
| https://cert.pl/en/posts/2026/07/CVE-2026-40467 | third-party-advisory |
Date Public
2026-07-13 12:07
Credits
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CVE-2026-40469 (GCVE-0-2026-40469)
Vulnerability from cvelistv5 – Published: 2026-07-13 12:07 – Updated: 2026-07-13 13:01 X_Open Source
VLAI
EPSS
VEX
Title
Heap buffer overflow in gawk
Summary
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Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-190 - Integer Overflow or Wraparound
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://cgit.git.savannah.gnu.org/cgit/gawk.git/c… | patch |
| https://cert.pl/en/posts/2026/07/CVE-2026-40467 | third-party-advisory |
Date Public
2026-07-13 12:07
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CVE-2026-40468 (GCVE-0-2026-40468)
Vulnerability from cvelistv5 – Published: 2026-07-13 12:07 – Updated: 2026-07-13 13:01 X_Open Source
VLAI
EPSS
VEX
Title
Heap buffer overflow in gawk
Summary
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Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-190 - Integer Overflow or Wraparound
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://cgit.git.savannah.gnu.org/cgit/gawk.git/c… | patch |
| https://cert.pl/en/posts/2026/07/CVE-2026-40467 | third-party-advisory |
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2026-07-13 12:07
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CVE-2026-40467 (GCVE-0-2026-40467)
Vulnerability from cvelistv5 – Published: 2026-07-13 12:07 – Updated: 2026-07-13 13:02 X_Open Source
VLAI
EPSS
VEX
Title
Use after free in gawk
Summary
Use After Free vulnerability has been found in "io.c" program file of gawk (do_getline_redir() routine). This issue may lead to a crash. It affects gawk in versions 5.4.0 and below.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-416 - Use After Free
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://cgit.git.savannah.gnu.org/cgit/gawk.git/c… | patch |
| https://cert.pl/en/posts/2026/07/CVE-2026-40467 | third-party-advisory |
Date Public
2026-07-13 12:07
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CVE-2023-4156 (GCVE-0-2023-4156)
Vulnerability from cvelistv5 – Published: 2023-09-25 17:20 – Updated: 2024-09-24 15:36
VLAI
EPSS
VEX
Title
Heap out of bound read in builtin.c
Summary
A heap out-of-bounds read flaw was found in builtin.c in the gawk package. This issue may lead to a crash and could be used to read sensitive information.
Severity
4.4 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-125 - Out-of-bounds Read
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://access.redhat.com/security/cve/CVE-2023-4156 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2215930 | issue-trackingx_refsource_REDHAT |
Impacted products
6 products
| Vendor | Product | Version | |
|---|---|---|---|
| n/a | gawk |
Unaffected:
5.1.1
|
|
| Red Hat | Red Hat Enterprise Linux 6 |
cpe:/o:redhat:enterprise_linux:6 |
|
| Red Hat | Red Hat Enterprise Linux 7 |
cpe:/o:redhat:enterprise_linux:7 |
|
| Red Hat | Red Hat Enterprise Linux 8 |
cpe:/o:redhat:enterprise_linux:8 |
|
| Red Hat | Red Hat Enterprise Linux 9 |
cpe:/o:redhat:enterprise_linux:9 |
|
| Fedora | Fedora |
Date Public
2023-06-19 00:00
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