Common Weakness Enumeration
CWE-124
AllowedBuffer Underwrite ('Buffer Underflow')
Abstraction: Base · Status: Incomplete
The product writes to a buffer using an index or pointer that references a memory location prior to the beginning of the buffer.
71 vulnerabilities reference this CWE, most recent first.
CVE-2026-5089 (GCVE-0-2026-5089)
Vulnerability from cvelistv5 – Published: 2026-05-12 16:14 – Updated: 2026-05-14 13:51
VLAI
EPSS
VEX
Title
YAML::Syck versions before 1.38 for Perl has an out-of-bounds read
Summary
YAML::Syck versions before 1.38 for Perl has an out-of-bounds read.
The base60 (sexagesimal) parsing code in perl_syck.h has a buffer underflow bug in both int#base60 and float#base60 handlers. When processing the leftmost segment of a colon-separated value (e.g., the 1 in 1:30:45), the inner while loop can decrement a pointer past the start of the string buffer:
while ( colon >= ptr && *colon != ':' )
{
colon--;
}
if ( *colon == ':' ) *colon = '\0'; // colon may be ptr-1 here
When no colon is found (final/leftmost segment), colon becomes ptr-1, and the subsequent *colon dereference reads one byte before the allocated buffer.
Severity
7.3 (High)
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-05-14 13:50 UTC
CWE
- CWE-124 - Buffer Underwrite ('Buffer Underflow')
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://metacpan.org/release/TODDR/YAML-Syck-1.38… | release-notes |
| https://github.com/cpan-authors/YAML-Syck/issues/132 | issue-tracking |
| https://github.com/cpan-authors/YAML-Syck/pull/133 | issue-tracking |
| https://github.com/cpan-authors/YAML-Syck/commit/… | patch |
| http://www.openwall.com/lists/oss-security/2026/0… |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| TODDR | YAML::Syck |
Affected:
0 , < 1.38
(custom)
|
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CVE-2026-1485 (GCVE-0-2026-1485)
Vulnerability from cvelistv5 – Published: 2026-01-27 13:43 – Updated: 2026-03-18 16:44
VLAI
EPSS
VEX
Title
Glib: glib: local denial of service via buffer underflow in content type parsing
Summary
A flaw was found in Glib's content type parsing logic. This buffer underflow vulnerability occurs because the length of a header line is stored in a signed integer, which can lead to integer wraparound for very large inputs. This results in pointer underflow and out-of-bounds memory access. Exploitation requires a local user to install or process a specially crafted treemagic file, which can lead to local denial of service or application instability.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-01-27 14:39 UTC
CWE
- CWE-124 - Buffer Underwrite ('Buffer Underflow')
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://access.redhat.com/security/cve/CVE-2026-1485 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2433325 | issue-trackingx_refsource_REDHAT |
| https://gitlab.gnome.org/GNOME/glib/-/issues/3871 |
Impacted products
5 products
| Vendor | Product | Version | |
|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux 10 |
cpe:/o:redhat:enterprise_linux:10
|
|
| 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
|
Date Public
2026-01-27 00:00
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CVE-2026-0966 (GCVE-0-2026-0966)
Vulnerability from cvelistv5 – Published: 2026-03-26 20:06 – Updated: 2026-09-01 11:54
VLAI
EPSS
VEX
Title
Libssh: libssh: denial of service via zero-length input in ssh_get_hexa()
Summary
A flaw was found in libssh. The API function `ssh_get_hexa()` is vulnerable to a denial of service when processing zero-length input. This can be exploited remotely by an attacker during GSSAPI (Generic Security Service Application Program Interface) authentication if the server's logging verbosity is set to `SSH_LOG_PACKET (3)` or higher. Successful exploitation could lead to a self-Denial of Service of the per-connection daemon process.
Severity
6.5 (Medium)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-03-27 19:52 UTC
CWE
- CWE-124 - Buffer Underwrite ('Buffer Underflow')
Assigner
References
6 references
| URL | Tags |
|---|---|
| https://access.redhat.com/errata/RHSA-2026:18160 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:18683 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/errata/RHSA-2026:7067 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/security/cve/CVE-2026-0966 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2433121 | issue-trackingx_refsource_REDHAT |
| https://www.libssh.org/2026/02/10/libssh-0-12-0-a… |
Impacted products
8 products
| Vendor | Product | Version | |
|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux 10 |
Unaffected:
0:0.12.0-2.el10 , < *
(rpm)
cpe:/o:redhat:enterprise_linux:10.2 |
|
| Red Hat | Red Hat Enterprise Linux 9 |
Unaffected:
0:0.10.4-18.el9 , < *
(rpm)
cpe:/a:redhat:enterprise_linux:9::appstream cpe:/o:redhat:enterprise_linux:9::baseos |
|
| Red Hat | Red Hat Hardened Images |
Unaffected:
0.12.0-1.1.hum1 , < *
(rpm)
cpe:/a:redhat:hummingbird: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 Hardened Images |
cpe:/a:redhat:hummingbird:1
|
|
| Red Hat | Red Hat OpenShift Container Platform 4 |
cpe:/a:redhat:openshift:4
|
Date Public
2026-02-10 18:47
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CVE-2025-68114 (GCVE-0-2025-68114)
Vulnerability from cvelistv5 – Published: 2025-12-17 21:14 – Updated: 2025-12-18 15:09
VLAI
EPSS
VEX
Title
Capstone doesn't check vsnprintf return in SStream_concat, allows stack buffer underflow and overflow
Summary
Capstone is a disassembly framework. In versions 6.0.0-Alpha5 and prior, an unchecked vsnprintf return in SStream_concat lets a malicious cs_opt_mem.vsnprintf drive SStream’s index negative or past the end, leading to a stack buffer underflow/overflow when the next write occurs. Commit 2c7797182a1618be12017d7d41e0b6581d5d529e fixes the issue.
Severity
4.8 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-12-18 14:55 UTC
CWE
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/capstone-engine/capstone/secur… | x_refsource_CONFIRM |
| https://github.com/capstone-engine/capstone/commi… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| capstone-engine | capstone |
Affected:
<= 6.0.0-Alpha5
|
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CVE-2025-62786 (GCVE-0-2025-62786)
Vulnerability from cvelistv5 – Published: 2025-10-29 15:52 – Updated: 2025-10-29 16:20
VLAI
EPSS
VEX
Title
Wazuh Vulnerable to Heap-based Buffer Out-Of-Bounds WRITE in decode_win_permissions
Summary
Wazuh is a free and open source platform used for threat prevention, detection, and response. A heap-based out-of-bounds WRITE occurs in decode_win_permissions, resulting in writing a NULL byte 2 bytes before the start of the buffer allocated to decoded_it. A compromised agent can potentially leverage this issue to perform remote code execution, by sending a specially crafted message to the wazuh manager. An attacker who is able to craft and send an agent message to the wazuh manager can leverage this issue to potentially achieve remote code execution on the wazuh manager (the exploitability of this vulnerability depends on the specifics of the respective heap allocator). This vulnerability is fixed in 4.10.2.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-10-29 16:19 UTC
CWE
- CWE-124 - Buffer Underwrite ('Buffer Underflow')
Assigner
References
2 references
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|---|---|
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CVE-2025-61915 (GCVE-0-2025-61915)
Vulnerability from cvelistv5 – Published: 2025-11-29 02:15 – Updated: 2025-12-03 15:52
VLAI
EPSS
VEX
Title
OpenPrinting CUPS vulnerable to stack based out-of-bound write
Summary
OpenPrinting CUPS is an open source printing system for Linux and other Unix-like operating systems. Prior to version 2.4.15, a user in the lpadmin group can use the cups web ui to change the config and insert a malicious line. Then the cupsd process which runs as root will parse the new config and cause an out-of-bound write. This issue has been patched in version 2.4.15.
Severity
6 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-12-03 15:52 UTC
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/OpenPrinting/cups/security/adv… | x_refsource_CONFIRM |
| https://github.com/OpenPrinting/cups/commit/db8d5… | x_refsource_MISC |
| https://github.com/OpenPrinting/cups/releases/tag… | x_refsource_MISC |
| http://www.openwall.com/lists/oss-security/2025/11/27/5 |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| OpenPrinting | cups |
Affected:
< 2.4.15
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CVE-2025-61690 (GCVE-0-2025-61690)
Vulnerability from cvelistv5 – Published: 2025-10-02 05:51 – Updated: 2025-10-02 17:32
VLAI
EPSS
VEX
Summary
KV STUDIO versions 12.23 and prior contain a buffer underflow vulnerability. If the product uses a specially crafted file, arbitrary code may be executed on the affected product.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-10-02 17:32 UTC
CWE
- CWE-124 - Buffer underwrite ('Buffer underflow')
Assigner
References
2 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| KEYENCE CORPORATION | KV STUDIO |
Affected:
12.23 and prior
|
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CVE-2025-53101 (GCVE-0-2025-53101)
Vulnerability from cvelistv5 – Published: 2025-07-14 19:51 – Updated: 2025-11-03 18:13
VLAI
EPSS
VEX
Title
ImageMagick has Stack Buffer Overflow in image.c
Summary
ImageMagick is free and open-source software used for editing and manipulating digital images. In versions prior to 7.1.2-0 and 6.9.13-26, in ImageMagick's `magick mogrify` command, specifying multiple consecutive `%d` format specifiers in a filename template causes internal pointer arithmetic to generate an address below the beginning of the stack buffer, resulting in a stack overflow through `vsnprintf()`. Versions 7.1.2-0 and 6.9.13-26 fix the issue.
Severity
7.4 (High)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-07-15 13:27 UTC
CWE
- CWE-124 - Buffer Underwrite ('Buffer Underflow')
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/ImageMagick/ImageMagick/securi… | x_refsource_CONFIRM |
| https://github.com/ImageMagick/ImageMagick/commit… | x_refsource_MISC |
| https://lists.debian.org/debian-lts-announce/2025… |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| ImageMagick | ImageMagick |
Affected:
< 7.1.2-0
Affected: < 6.9.13-26 |
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CVE-2025-27440 (GCVE-0-2025-27440)
Vulnerability from cvelistv5 – Published: 2025-03-11 17:11 – Updated: 2025-03-11 17:40
VLAI
EPSS
VEX
Title
Zoom Apps - Heap-based Buffer Overflow
Summary
Heap overflow in some Zoom Workplace Apps may allow an authenticated user to conduct an escalation of privilege via network access.
Severity
8.5 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-03-11 17:40 UTC
CWE
- CWE-124 - Buffer Underwrite
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Zoom Communications, Inc | Zoom Workplace Apps |
Affected:
See references.
(custom)
|
Date Public
2025-03-11 12:00
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CVE-2025-27439 (GCVE-0-2025-27439)
Vulnerability from cvelistv5 – Published: 2025-03-11 17:10 – Updated: 2025-03-11 18:58
VLAI
EPSS
VEX
Title
Zoom Apps - Buffer Underflow
Summary
Buffer underflow in some Zoom Workplace Apps may allow an authenticated user to conduct an escalation of privilege via network access.
Severity
8.5 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-03-11 18:58 UTC
CWE
- CWE-124 - Buffer Underwrite
Assigner
References
1 reference
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Zoom Communications, Inc | Zoom Workplace Apps |
Affected:
See references.
(custom)
|
Date Public
2025-03-11 12:00
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Mitigation
Requirements
Choose a language that is not susceptible to these issues.
Mitigation
Implementation
All calculated values that are used as index or for pointer arithmetic should be validated to ensure that they are within an expected range.
No CAPEC attack patterns related to this CWE.