Common Weakness Enumeration
CWE-190
AllowedInteger Overflow or Wraparound
Abstraction: Base · Status: Stable
The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.
3963 vulnerabilities reference this CWE, most recent first.
CVE-2026-71393 (GCVE-0-2026-71393)
Vulnerability from cvelistv5 – Published: 2026-08-10 10:22 – Updated: 2026-08-10 17:50 X_Open Source
VLAI
EPSS
VEX
Title
Heap Buffer Overflow in GNU Emacs for Android
Summary
GNU Emacs for Android is vulnerable to an integer overflow in sfnt_read_name_table() in src/sfnt.c. The function computes an allocation size using a 32-bit length value from a TrueType font file without overflow checking. On 32-bit targets, a crafted font causes the calculation to wrap, resulting in an undersized heap allocation. A subsequent read() call writes beyond the buffer, causing a heap buffer overflow. An attacker can deliver a malicious font file via email, EWW (Emacs Web Wowser), or documents with custom faces, causing Emacs to load it. This can lead to heap memory corruption and potential code execution.
This issue was fixed in commit d51a4722316efe0960994d371e1859099894d1ca
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-190 - Integer Overflow or Wraparound
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://cert.pl/en/posts/2026/08/CVE-2026-71391 | third-party-advisory |
| https://www.gnu.org/savannah-checkouts/gnu/emacs/… | product |
| https://git.savannah.gnu.org/cgit/emacs.git/commi… | patch |
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CVE-2026-71392 (GCVE-0-2026-71392)
Vulnerability from cvelistv5 – Published: 2026-08-10 10:22 – Updated: 2026-08-10 17:48 X_Open Source
VLAI
EPSS
VEX
Title
Integer Overflow in GNU Emacs for Android
Summary
GNU Emacs for Android is vulnerable to an integer overflow in the sfnt_read_cmap_format_12() function in src/sfnt.c. When processing a crafted TrueType font file, an unguarded addition in the xmalloc allocation call wraps around on 32-bit builds, causing a heap buffer overflow write. An attacker can deliver a malicious font file via email, EWW (Emacs Web Wowser), or documents with custom faces, causing Emacs to load it. This results in heap memory corruption that can lead to code execution.
This issue was fixed in commit c4e20777c26548722a37b03db93243e83a0d6188
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-190 - Integer Overflow or Wraparound
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://cert.pl/en/posts/2026/08/CVE-2026-71391 | third-party-advisory |
| https://www.gnu.org/savannah-checkouts/gnu/emacs/… | product |
| https://git.savannah.gnu.org/cgit/emacs.git/commi… | patch |
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CVE-2026-71261 (GCVE-0-2026-71261)
Vulnerability from cvelistv5 – Published: 2026-08-05 12:26 – Updated: 2026-08-10 11:46
VLAI
EPSS
VEX
Title
dr_wav.h W64 CUE Chunk Metadata Parsing Integer Overflow Leading to Heap Buffer Overflow on 32-bit Builds
Summary
dr_libs dr_wav.h (all versions through current master) contains an integer overflow in W64 CUE chunk metadata parsing. In drwav__metadata_process_chunk, a stage-1 capacity estimate truncates the 64-bit W64 chunk sizeInBytes to size_t before dividing by DRWAV_CUE_POINT_BYTES; on 32-bit builds this truncation causes the pre-allocated extra metadata capacity to be computed incorrectly.
Severity
7.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/mackron/dr_libs | third-party-advisory |
| https://github.com/mackron/dr_libs/blob/master/dr_wav.h | third-party-advisory |
Date Public
2026-08-05 12:26
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CVE-2026-70638 (GCVE-0-2026-70638)
Vulnerability from cvelistv5 – Published: 2026-08-06 15:35 – Updated: 2026-08-07 19:02 X_Open Source
VLAI
EPSS
VEX
Title
llama.cpp b1886–b7445 Integer Overflow via new_1batch() in llama-android.cpp
Summary
llama.cpp builds b1886 through b7445 contain an integer overflow vulnerability in the LLaMA-Android JNI wrapper where the new_1batch() function multiplies sizeof(llama_seq_id) by an attacker-controlled n_seq_max parameter without overflow validation, causing heap buffer allocation to wrap and allocate insufficient memory. Attackers can exploit this by providing a crafted n_seq_max value through a malicious model file or JNI call to trigger heap corruption and achieve denial of service or arbitrary code execution on Android applications using the LLaMA-Android binding.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://github.com/ggml-org/llama.cpp/releases/ta… | release-notes |
| https://github.com/ggml-org/llama.cpp/commit/5c0d… | patch |
| https://github.com/Vladimir-tokarev-cyera/llama-c… | related |
| https://www.vulncheck.com/advisories/llama-cpp-b1… | third-party-advisory |
Impacted products
Date Public
2026-05-06 00:00
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CVE-2026-70628 (GCVE-0-2026-70628)
Vulnerability from cvelistv5 – Published: 2026-08-06 21:24 – Updated: 2026-08-07 17:10 X_Open Source
VLAI
EPSS
VEX
Title
FFmpeg 0.5 < 9.0 DVB Subtitle Parser Heap Buffer Overflow via WTV File
Summary
FFmpeg versions from 0.5 up to, but not including, 9.0 contain a signed integer overflow vulnerability in the DVB subtitle parser in libavcodec/dvbsub_parser.c that allows attackers to trigger a heap buffer overflow by supplying a crafted WTV file. The overflow causes the bounds-check guard expression to wrap to INT_MIN, bypassing the PARSE_BUF_SIZE comparison and invoking memcpy() with attacker-controlled data into a heap buffer, resulting in an out-of-bounds heap write and potential memory corruption or code execution.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
Assigner
References
5 references
| URL | Tags |
|---|---|
| https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/23897 | issue-tracking |
| https://code.ffmpeg.org/FFmpeg/FFmpeg/commit/c6ec… | related |
| https://code.ffmpeg.org/FFmpeg/FFmpeg/commit/93f2… | patch |
| https://code.ffmpeg.org/FFmpeg/FFmpeg/commit/02fc… | patch |
| https://www.vulncheck.com/advisories/ffmpeg-dvb-s… | third-party-advisory |
Date Public
2026-07-24 00:00
Credits
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CVE-2026-66758 (GCVE-0-2026-66758)
Vulnerability from cvelistv5 – Published: 2026-07-27 19:07 – Updated: 2026-08-05 15:21
VLAI
EPSS
VEX
Title
Gimp: integer overflow in file-fits plugin causes a heap-based buffer overflow on crafted fits images
Summary
A flaw was found in the file-fits plugin in GIMP. When processing a FITS image file, the plugin calculates memory allocation sizes using signed 32-bit integers for width and height. If a crafted file sets both values to large values, their product exceeds 2^31 and overflows, resulting in an undersized heap-based buffer allocation. This integer overflow issue results in a heap-based buffer overflow when cfitsio subsequently writes a full row of pixels in the buffer, causing memory corruption, potentially leading to arbitrary code execution or a denial of service.
Severity
7.8 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-190 - Integer Overflow or Wraparound
Assigner
References
4 references
| URL | Tags |
|---|---|
| https://access.redhat.com/errata/RHSA-2026:50817 | vendor-advisoryx_refsource_REDHAT |
| https://access.redhat.com/security/cve/CVE-2026-66758 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2507475 | issue-trackingx_refsource_REDHAT |
| https://gitlab.gnome.org/GNOME/gimp/-/issues/16528 |
Impacted products
5 products
| Vendor | Product | Version | |
|---|---|---|---|
| GNOME | GIMP | ||
| Red Hat | Red Hat Enterprise Linux 9 |
Unaffected:
2:3.0.4-4.el9_8.9 , < *
(rpm)
cpe:/a:redhat:enterprise_linux:9::appstream |
|
| 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 |
Date Public
2026-07-07 00:00
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CVE-2026-66757 (GCVE-0-2026-66757)
Vulnerability from cvelistv5 – Published: 2026-07-27 19:07 – Updated: 2026-07-31 15:19
VLAI
EPSS
VEX
Title
Gimp: signed integer overflow in file-sgi (sgi-lib) causes the plugin to crash on rle sgi images
Summary
A flaw was found in the file-sgi plugin in GIMP. When processing an RLE-compressed SGI image, the plugin allocates memory for a row table. The image header dimensions (ysize and zsize) are read as 16-bit unsigned integers. If a crafted file sets both dimensions to their maximum value (65535), the multiplication ysize * zsize overflows the standard 32-bit int boundary before being passed to calloc. This integer overflow issue results in undefined behavior, aborting the plugin and causing a denial of service.
Severity
5.5 (Medium)
SSVC
Exploitation: poc
Automatable: no
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-190 - Integer Overflow or Wraparound
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://access.redhat.com/security/cve/CVE-2026-66757 | vdb-entryx_refsource_REDHAT |
| https://bugzilla.redhat.com/show_bug.cgi?id=2507465 | issue-trackingx_refsource_REDHAT |
| https://gitlab.gnome.org/GNOME/gimp/-/work_items/16494 |
Impacted products
5 products
| Vendor | Product | Version | |
|---|---|---|---|
| GNOME | GIMP | ||
| 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
2026-07-07 00:00
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CVE-2026-66039 (GCVE-0-2026-66039)
Vulnerability from cvelistv5 – Published: 2026-07-24 19:42 – Updated: 2026-07-29 03:55 X_Open Source
VLAI
EPSS
VEX
Title
FFmpeg MACE6 Audio Decoder Heap Out-of-Bounds Write via CAF File
Summary
FFmpeg through 8.1.2, fixed in commit aafb5c6, contains a signed integer overflow vulnerability in the MACE6 audio decoder that allows attackers to corrupt heap memory by supplying a crafted CAF file with a malicious bytes_per_packet value. Attackers can craft a CAF file with oversized bytes_per_packet and frames_per_packet values in the desc chunk to trigger an integer overflow in mace_decode_frame() during output sample count computation, resulting in an undersized buffer allocation and heap out-of-bounds write that could enable code execution.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://code.ffmpeg.org/FFmpeg/FFmpeg/pulls/23631 | issue-tracking |
| https://code.ffmpeg.org/FFmpeg/FFmpeg/commit/aafb… | patch |
| https://www.vulncheck.com/advisories/ffmpeg-mace6… | third-party-advisory |
Impacted products
Date Public
2026-07-02 00:00
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CVE-2026-65423 (GCVE-0-2026-65423)
Vulnerability from cvelistv5 – Published: 2026-07-30 21:59 – Updated: 2026-07-31 15:47
VLAI
EPSS
VEX
Title
o6 Automation open62541 Integer Overflow or Wraparound
Summary
An integer overflow in the UA_Variant arrayDimensions product
computation in open62541 may allow a remote attacker to trigger an
out-of-bounds write.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
Assigner
References
7 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| o6 Automation | open62541 |
Affected:
1.3.0 , ≤ 1.3.17
(custom)
Affected: 1.4.0 , ≤ 1.4.16 (custom) Affected: 1.5.0 , ≤ 1.5.4 (custom) Affected: master |
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CVE-2026-63559 (GCVE-0-2026-63559)
Vulnerability from cvelistv5 – Published: 2026-07-30 21:47 – Updated: 2026-07-31 15:42
VLAI
EPSS
VEX
Title
o6 Automation open62541 Integer Overflow or Wraparound
Summary
An integer overflow in the UA_Variant arrayDimensions product
computation in open62541 may allow a remote attacker to read
out-of-bounds heap memory, potentially disclosing sensitive information.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
Assigner
References
7 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| o6 Automation | open62541 |
Affected:
1.3.0 , ≤ 1.3.17
(custom)
Affected: 1.4.0 , ≤ 1.4.16 (custom) Affected: 1.5.0 , ≤ 1.5.4 (custom) Affected: master |
Credits
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"value": "\u003cp\u003eo6 Automation has prepared mitigations and fixes to address these \nissues and recommends that users update to the newest version. The new \nversion can be obtained by contacting o6 Automation\u0026nbsp;\u0026nbsp;\u003ca href=\"https://www.o6-automation.com/contact\"\u003ehttps://www.o6-automation.com/contact\u003c/a\u003e\nor by downloading from the \nfollowing locations:\u003cbr\u003e\u003ca href=\"https://github.com/open62541/open62541/pull/8235/commits/b666d35769ce63998442e4d0810a3fb10b50179f\"\u003ehttps://github.com/open62541/open62541/pull/8235/commits/b666d35769ce63998442e4d0810a3fb10b50179f\u003c/a\u003e\u003cbr\u003e\u003ca href=\"https://github.com/open62541/open62541/pull/8236/commits/06b99fef667c8ec5bdf0605b4f00c84fcc1d3a60\"\u003ehttps://github.com/open62541/open62541/pull/8236/commits/06b99fef667c8ec5bdf0605b4f00c84fcc1d3a60\u003c/a\u003e\u003cbr\u003e\u003ca href=\"https://github.com/open62541/open62541/pull/8237/commits/1b71d9c5d9c4d02d4729b8903a52e9f530bf804e\"\u003ehttps://github.com/open62541/open62541/pull/8237/commits/1b71d9c5d9c4d02d4729b8903a52e9f530bf804e\u003c/a\u003e\u003cbr\u003e\u003ca href=\"https://github.com/open62541/open62541/pull/8238/commits/afab4107bfd161da9ce8bb30ed77f3968c9c97df\"\u003ehttps://github.com/open62541/open62541/pull/8238/commits/afab4107bfd161da9ce8bb30ed77f3968c9c97df\u003c/a\u003e\u003c/p\u003e\n\u003cp\u003eFor more information, see open62541 \nSecurity Advisories SA-2026-0012, SA-2026-0014, and SA-2026-0015 or \ncontact o6 Automation:\u0026nbsp;\u003ca href=\"https://www.o6-automation.com/contact\"\u003ehttps://www.o6-automation.com/contact\u003c/a\u003e\u003c/p\u003e"
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Mitigation
Requirements
Ensure that all protocols are strictly defined, such that all out-of-bounds behavior can be identified simply, and require strict conformance to the protocol.
Mitigation MIT-3
Requirements
Strategy: Language Selection
- Use a language that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid.
- If possible, choose a language or compiler that performs automatic bounds checking.
Mitigation MIT-4
Architecture and Design
Strategy: Libraries or Frameworks
- Use a vetted library or framework that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid [REF-1482].
- Use libraries or frameworks that make it easier to handle numbers without unexpected consequences.
- Examples include safe integer handling packages such as SafeInt (C++) or IntegerLib (C or C++). [REF-106]
Mitigation MIT-8
Implementation
Strategy: Input Validation
- Perform input validation on any numeric input by ensuring that it is within the expected range. Enforce that the input meets both the minimum and maximum requirements for the expected range.
- Use unsigned integers where possible. This makes it easier to perform validation for integer overflows. When signed integers are required, ensure that the range check includes minimum values as well as maximum values.
Mitigation MIT-36
Implementation
- Understand the programming language's underlying representation and how it interacts with numeric calculation (CWE-681). Pay close attention to byte size discrepancies, precision, signed/unsigned distinctions, truncation, conversion and casting between types, "not-a-number" calculations, and how the language handles numbers that are too large or too small for its underlying representation. [REF-7]
- Also be careful to account for 32-bit, 64-bit, and other potential differences that may affect the numeric representation.
Mitigation MIT-15
Architecture and Design
For any security checks that are performed on the client side, ensure that these checks are duplicated on the server side, in order to avoid CWE-602. Attackers can bypass the client-side checks by modifying values after the checks have been performed, or by changing the client to remove the client-side checks entirely. Then, these modified values would be submitted to the server.
Mitigation MIT-26
Implementation
Strategy: Compilation or Build Hardening
Examine compiler warnings closely and eliminate problems with potential security implications, such as signed / unsigned mismatch in memory operations, or use of uninitialized variables. Even if the weakness is rarely exploitable, a single failure may lead to the compromise of the entire system.
CAPEC-92: Forced Integer Overflow
This attack forces an integer variable to go out of range. The integer variable is often used as an offset such as size of memory allocation or similarly. The attacker would typically control the value of such variable and try to get it out of range. For instance the integer in question is incremented past the maximum possible value, it may wrap to become a very small, or negative number, therefore providing a very incorrect value which can lead to unexpected behavior. At worst the attacker can execute arbitrary code.