Common Weakness Enumeration

CWE-191

Allowed

Integer Underflow (Wrap or Wraparound)

Abstraction: Base · Status: Draft

The product subtracts one value from another, such that the result is less than the minimum allowable integer value, which produces a value that is not equal to the correct result.

705 vulnerabilities reference this CWE, most recent first.

CVE-2026-73433 (GCVE-0-2026-73433)

Vulnerability from cvelistv5 – Published: 2026-08-12 19:05 – Updated: 2026-08-19 20:54
VLAI
Title
Gstreamer1-plugins-good: gstreamer: unsigned integer underflow in avidemux fujifilm strd parsing leading to out-of-bounds read/write
Summary
A flaw was found in GStreamer gst-plugins-good (avidemux). When parsing FUJIFILM metadata in an AVI strd chunk, gst_avi_demux_parse_strd() decrements a remaining-length counter by fixed offsets (98 and 10 bytes) without verifying sufficient data remains. For crafted strd payloads of exactly 106 or 107 bytes, the counter underflows to a very large unsigned value, causing subsequent null-terminated string scanning to read far beyond the allocated heap buffer. Date-format normalization may also write beyond the buffer end. Confirmed impacts include heap out-of-bounds read, out-of-bounds write, heap information disclosure (adjacent data appearing in parsed metadata), and application crash/denial of service. The avidemux element is auto-plugged by playbin, decodebin, and gst-discoverer, so opening or previewing a crafted AVI is sufficient to trigger the issue. Fixed upstream in gst-plugins-good 1.28.6 (GStreamer-SA-2026-0072).
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-14 21:57 UTC
CWE
  • CWE-191 - Integer Underflow (Wrap or Wraparound)
Impacted products
Vendor Product Version
GStreamer gst-plugins-good Affected: 0 , < 1.28.6 (semver)
Create a notification for this product.
Red Hat Red Hat Enterprise Linux 10 Unaffected: 0:1.26.7-2.el10_2.5 , < * (rpm)
    cpe:/o:redhat:enterprise_linux:10.2
Create a notification for this product.
Red Hat Red Hat Enterprise Linux 8 Unaffected: 0:1.16.1-7.el8_10.3 , < * (rpm)
    cpe:/a:redhat:enterprise_linux:8::appstream
Create a notification for this product.
Red Hat Red Hat Enterprise Linux 9 Unaffected: 0:1.22.12-7.el9_8.4 , < * (rpm)
    cpe:/a:redhat:enterprise_linux:9::appstream
Create a notification for this product.
Red Hat Red Hat Enterprise Linux 7     cpe:/o:redhat:enterprise_linux:7
Create a notification for this product.
Date Public
2026-08-05 00:00
Show details on NVD website

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CVE-2026-71389 (GCVE-0-2026-71389)

Vulnerability from cvelistv5 – Published: 2026-08-11 16:59 – Updated: 2026-08-12 16:59
VLAI
Title
CAI Content Credentials | Integer Underflow (Wrap or Wraparound) (CWE-191)
Summary
CAI Content Credentials is affected by an Integer Underflow (Wrap or Wraparound) vulnerability that could result in an application denial-of-service. An attacker could exploit this vulnerability to crash the application, leading to a denial-of-service condition. Exploitation of this issue does not require user interaction.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-12 16:15 UTC
CWE
  • CWE-191 - Integer Underflow (Wrap or Wraparound) (CWE-191)
References
Impacted products
Vendor Product Version
Adobe Content Credentials Rust SDK Affected: 0 , ≤ c2pa-v0.90.5 (custom)
Unaffected: c2pa-v0.90.6 (custom)
Create a notification for this product.
Adobe Content Credentials Command-Line Tool Affected: 0 , ≤ c2patool-v0.27.5 (custom)
Unaffected: c2patool-v0.27.6 (custom)
Create a notification for this product.
Adobe Content Credentials JS SDK Affected: 0 , ≤ @contentauth/c2pa-web@0.12.0 (custom)
Unaffected: @contentauth/c2pa-web@0.12.1 (custom)
Create a notification for this product.
Date Public
2026-08-11 17:00
Show details on NVD website

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CVE-2026-71202 (GCVE-0-2026-71202)

Vulnerability from cvelistv5 – Published: 2026-08-05 06:58 – Updated: 2026-08-10 11:44
VLAI
Title
raster - Integer Underflow in crop() Offset Handling Causes Capacity-Overflow Panic
Summary
The raster Rust crate's crop function (src/editor.rs) clamps the crop width/height against source dimensions but only clamps the offset_x/offset_y parameters against 0, never against the source width/height.
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-05 13:24 UTC
CWE
References
URL Tags
https://github.com/kosinix/raster/issues/30 third-party-advisory
Impacted products
Vendor Product Version
kosinix raster Affected: 0 , ≤ 0.2.1 (custom)
Create a notification for this product.
Date Public
2026-08-05 06:58
Credits
Show details on NVD website

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CVE-2026-70633 (GCVE-0-2026-70633)

Vulnerability from cvelistv5 – Published: 2026-08-06 16:51 – Updated: 2026-08-14 16:51 X_Open Source
VLAI
Title
TimescaleDB 2.29.1 Out-of-Bounds Read DoS via Gorilla Compression Reverse Iterator
Summary
TimescaleDB through 2.29.1, fixed in commit 517c13e, contains an out-of-bounds read vulnerability in the Gorilla compression reverse row iterator that allows authenticated attackers to cause a denial of service by storing a crafted compressed datum with an internally inconsistent BitArray. Attackers with DML access to a compressed hypertable can trigger an unsigned integer wraparound in the reverse iterator bucket index computation, causing a read beyond the end of the bucket array, resulting in a SIGSEGV crash that can be repeatedly triggered on each subsequent reverse-order scan.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-07 15:32 UTC
CWE
  • CWE-191 - Integer Underflow (Wrap or Wraparound)
  • CWE-125 - Out-of-bounds Read
Impacted products
Vendor Product Version
timescale timescaledb Affected: 0 , ≤ 2.29.1 (semver)
Unaffected: 517c13e7cc6afadb4a7deaa7a5a5a29065e5b5a3 (git)
    cpe:2.3:a:timescale:timescaledb:*:*:*:*:*:*:*:*
Create a notification for this product.
Date Public
2026-07-29 00:00
Show details on NVD website

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CVE-2026-67298 (GCVE-0-2026-67298)

Vulnerability from cvelistv5 – Published: 2026-08-01 12:22 – Updated: 2026-08-03 19:50
VLAI
Title
FreeRDP 3.28.0 Heap Buffer Overflow via RAIL orderLength Underflow
Summary
FreeRDP versions 3.28.0 and earlier contain a heap buffer overflow in the server-side RAIL channel handler (rail_server_handle_messages() in channels/rail/server/rail_main.c). When processing a RAIL PDU header, the code subtracts RAIL_PDU_HEADER_LENGTH from the peer-controlled orderLength field without first verifying orderLength is at least the header length. For orderLength values 0..3 this causes an unsigned integer underflow to a very large size, which bypasses the Stream_EnsureRemainingCapacity() capacity check (due to pointer arithmetic wraparound) and is then passed to WTSVirtualChannelRead(), resulting in an out-of-bounds heap write. A malicious or compromised RDP client can exploit this to corrupt the heap and crash the server. Fixed in FreeRDP 3.29.0.
SSVC
Exploitation: poc Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-03 19:50 UTC
CWE
  • CWE-191 - Integer Underflow (Wrap or Wraparound)
Impacted products
Vendor Product Version
FreeRDP FreeRDP Affected: 0 , < 3.29.0 (semver)
Unaffected: 3.29.0 (semver)
    cpe:2.3:a:freerdp:freerdp:*:*:*:*:*:*:*:*
Create a notification for this product.
Date Public
2026-07-15 00:00
Credits
Show details on NVD website

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CVE-2026-66033 (GCVE-0-2026-66033)

Vulnerability from cvelistv5 – Published: 2026-07-24 16:35 – Updated: 2026-07-28 01:06 X_Open Source
VLAI
Title
libssh2 Integer Underflow DoS via AES-GCM Cipher Negotiation
Summary
libssh2 through 1.11.1, fixed in commit a2ed82d, contains a pre-authentication integer underflow vulnerability in the ssh2_cipher_crypt() function in src/openssl.c that allows a malicious SSH server to crash any connecting client by negotiating AES-GCM ciphers during handshake. Attackers can exploit the underflow in the expression computing blocksize minus aadlen minus authentication tag length to trigger an out-of-bounds read and a memcpy call with a near-SIZE_MAX length argument, causing immediate process crash before any authentication occurs.
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-27 16:15 UTC
CWE
  • CWE-191 - Integer Underflow (Wrap or Wraparound)
  • CWE-125 - Out-of-bounds Read
Impacted products
Vendor Product Version
libssh2 libssh2 Affected: 0 , ≤ 1.11.1 (semver)
Unaffected: a2ed82d40964bbc0d64cd717aa0a5a892117d2e6 (git)
    cpe:2.3:a:libssh2:libssh2:*:*:*:*:*:*:*:*
Create a notification for this product.
Date Public
2026-07-23 00:00
Show details on NVD website

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CVE-2026-65704 (GCVE-0-2026-65704)

Vulnerability from cvelistv5 – Published: 2026-07-23 18:55 – Updated: 2026-07-28 01:06 X_Open Source
VLAI
Title
FFmpeg 8.1.2 Out-of-Bounds Write via TY Demuxer and Shorten Decoder
Summary
FFmpeg through 8.1.2 contains an out-of-bounds write vulnerability that allows attackers to cause heap corruption by supplying a crafted ffconcat file processed with the -safe 0 flag. The TY demuxer's demux_audio() function decrements packet size without bounds checking, producing a negative size value that is passed to memcpy() in shorten_decode_frame(), where conversion to size_t wraps the value to near SIZE_MAX and triggers reads beyond the source allocation and writes far beyond the Shorten decoder's bitstream buffer.
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-23 00:00 UTC
CWE
  • CWE-787 - Out-of-bounds Write
  • CWE-191 - Integer Underflow (Wrap or Wraparound)
Impacted products
Vendor Product Version
FFmpeg FFmpeg Affected: 0 , ≤ 8.1.2 (custom)
Unaffected: de771bd52774a52d45b0e2c82e56995a1ef40df7 (git)
    cpe:2.3:a:ffmpeg:ffmpeg:*:*:*:*:*:*:*:*
Create a notification for this product.
Date Public
2026-07-13 00:00
Show details on NVD website

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CVE-2026-64909 (GCVE-0-2026-64909)

Vulnerability from cvelistv5 – Published: 2026-08-11 17:06 – Updated: 2026-08-24 16:09
VLAI
Title
Microsoft Office Remote Code Execution Vulnerability
Summary
Integer underflow (wrap or wraparound) in Microsoft Office allows an unauthorized attacker to execute code locally.
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-06 00:00 UTC
CWE
  • CWE-191 - Integer Underflow (Wrap or Wraparound)
  • CWE-125 - Out-of-bounds Read
  • CWE-122 - Heap-based Buffer Overflow
References
Impacted products
Vendor Product Version
Microsoft Microsoft 365 Apps for Enterprise Affected: 16.0.1 , < https://aka.ms/OfficeSecurityReleases (custom)
Create a notification for this product.
Microsoft Microsoft Office 2016 Affected: 16.0.0 , < 16.0.5565.1001 (custom)
Create a notification for this product.
Microsoft Microsoft Office 2019 Affected: 19.0.0 , < https://aka.ms/OfficeSecurityReleases (custom)
Create a notification for this product.
Microsoft Microsoft Office 365 for Mac Affected: 1.0.0 , < 16.112.26081010 (custom)
Create a notification for this product.
Microsoft Microsoft Office LTSC 2021 Affected: 16.0.1 , < https://aka.ms/OfficeSecurityReleases (custom)
Create a notification for this product.
Microsoft Microsoft Office LTSC 2024 Affected: 16.0.0 , < https://aka.ms/OfficeSecurityReleases (custom)
Create a notification for this product.
Microsoft Microsoft Office LTSC for Mac 2021 Affected: 16.0.1 , < 16.112.26081010 (custom)
Create a notification for this product.
Microsoft Microsoft Office LTSC for Mac 2024 Affected: 16.0.0 , < 16.112.26081010 (custom)
Create a notification for this product.
Date Public
2026-08-11 14:00
Show details on NVD website

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CVE-2026-63515 (GCVE-0-2026-63515)

Vulnerability from cvelistv5 – Published: 2026-08-11 17:04 – Updated: 2026-08-24 16:07
VLAI
Title
Microsoft Office Remote Code Execution Vulnerability
Summary
Out-of-bounds read in Microsoft Office allows an unauthorized attacker to execute code locally.
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-07 00:00 UTC
CWE
  • CWE-125 - Out-of-bounds Read
  • CWE-191 - Integer Underflow (Wrap or Wraparound)
References
Impacted products
Vendor Product Version
Microsoft Microsoft 365 Apps for Enterprise Affected: 16.0.1 , < https://aka.ms/OfficeSecurityReleases (custom)
Create a notification for this product.
Microsoft Microsoft Office 2016 Affected: 16.0.0 , < 16.0.5565.1001 (custom)
Create a notification for this product.
Microsoft Microsoft Office 2019 Affected: 19.0.0 , < https://aka.ms/OfficeSecurityReleases (custom)
Create a notification for this product.
Microsoft Microsoft Office 365 for Mac Affected: 1.0.0 , < 16.112.26081010 (custom)
Create a notification for this product.
Microsoft Microsoft Office LTSC 2021 Affected: 16.0.1 , < https://aka.ms/OfficeSecurityReleases (custom)
Create a notification for this product.
Microsoft Microsoft Office LTSC 2024 Affected: 16.0.0 , < https://aka.ms/OfficeSecurityReleases (custom)
Create a notification for this product.
Microsoft Microsoft Office LTSC for Mac 2021 Affected: 16.0.1 , < 16.112.26081010 (custom)
Create a notification for this product.
Microsoft Microsoft Office LTSC for Mac 2024 Affected: 16.0.0 , < 16.112.26081010 (custom)
Create a notification for this product.
Date Public
2026-08-11 14:00
Show details on NVD website

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CVE-2026-63362 (GCVE-0-2026-63362)

Vulnerability from cvelistv5 – Published: 2026-07-30 22:01 – Updated: 2026-07-31 15:48
VLAI
Title
o6 Automation open62541 Integer Underflow
Summary
An unsigned integer underflow in the PubSub signature verification path in open62541 may allow a remote attacker to cause a denial of service via a crafted UDP packet.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-31 15:48 UTC
CWE
Impacted products
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
Create a notification for this product.
Show details on NVD website

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No mitigation information available for this CWE.

No CAPEC attack patterns related to this CWE.