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CVE-2026-68513

OpenEXR: Heap buffer overflow in PyOpenEXR from literal/prefixed RGB channel name collision

OpenEXR is the reference implementation and specification for the EXR image format, widely used in the motion picture industry. Versions 3.3.0 through 3.3.12 and 3.4.0 through 3.4.13 contain a heap buffer overflow in PyOpenEXR triggered by a channel-name key collision between literal and prefixed RGB channels. When separate_channels=false, PyOpenEXR maps each physical channel name through channelNameToRGBA() and coalesces the results into a shared RGB array. A crafted flat scanline EXR that contains both a literal channel such as left and prefixed channels such as left.R, left.G, and left.B causes these names to collide, so the wrapper reuses an undersized two-dimensional NumPy array for the coalesced RGB slices and writes out of bounds when OpenEXR.File(path) decodes the pixels. This issue is fixed in versions 3.3.13 and 3.4.14.

CVSS 3.1 · 7.1 High EPSS < 1% KEV · Not listed
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CVE-2026-76886

Heap-based Buffer Overflow in Wireshark

C12.22 protocol dissector crash in 4.6.0 to 4.6.7 and 4.4.0 to 4.4.18 allows denial of service

CVSS 3.1 · 8.1 High EPSS < 1% KEV · Not listed
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CVE-2026-19313

Fireware OS Pre-Authentication Heap Buffer Overflow in iked Allows Remote Code Execution

An heap overflow vulnerability in the WatchGuard Fireware OS iked process allows a remote unauthenticated attacker to execute arbitrary code by sending specially crafted network traffic.

CVSS 4.0 · 9.3 Critical EPSS < 1% KEV · Not listed
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CVE-2026-38821

OpenNDS Buffer Overflow Enables Denial of Service and Remote Code Execution

A heap-based buffer overflow vulnerability exists in openNDS before 11.0.0 that allows an unauthenticated attacker on the captive portal network to crash the openNDS daemon (denial of service) and potentially achieve remote code execution. This is in http_microhttpd.c.

CVSS 3.1 · 7.1 High EPSS < 1% KEV · Not listed
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CVE-2026-81851

Fireware OS Heap-Based Buffer Overflow in iked Allows Denial of Service

A heap-based buffer overflow vulnerability in Fireware OS's iked process allows an authenticated administrator to crash the IKE daemon (iked), resulting in a denial of service, by saving a specially crafted configuration.

CVSS 4.0 · 6.9 Medium EPSS < 1% KEV · Not listed
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CVE-2026-48422

Substance3D - Sampler | Heap-based Buffer Overflow (CWE-122)

Substance3D - Sampler is affected by a Heap-based Buffer Overflow vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed
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CVE-2026-48423

Substance3D - Sampler | Heap-based Buffer Overflow (CWE-122)

Substance3D - Sampler is affected by a Heap-based Buffer Overflow vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed
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CVE-2026-34642

After Effects | Heap-based Buffer Overflow (CWE-122)

After Effects versions 26.0, 25.6.4 and earlier are affected by a Heap-based Buffer Overflow vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed
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CVE-2026-48428

Substance3D - Designer | Heap-based Buffer Overflow (CWE-122)

Substance3D - Designer is affected by a Heap-based Buffer Overflow vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed
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CVE-2026-48430

Substance3D - Designer | Heap-based Buffer Overflow (CWE-122)

Substance3D - Designer is affected by a Heap-based Buffer Overflow vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed
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CVE-2026-48431

Substance3D - Designer | Heap-based Buffer Overflow (CWE-122)

Substance3D - Designer is affected by a Heap-based Buffer Overflow vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed
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CVE-2026-48432

Substance3D - Designer | Heap-based Buffer Overflow (CWE-122)

Substance3D - Designer is affected by a Heap-based Buffer Overflow vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed
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CVE-2026-48433

Substance3D - Designer | Heap-based Buffer Overflow (CWE-122)

Substance3D - Designer is affected by a Heap-based Buffer Overflow vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of this issue requires user interaction in that a victim must open a malicious file.

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed
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CVE-2026-77652

Dia: dia: heap buffer overflow in wpg colormap parser via out-of-bounds palette index

A heap-based buffer overflow vulnerability exists in the Dia diagram editor WPG file format importer. In plug-ins/wpg/wpg-import.c, the WPG import renderer allocates a fixed palette with: ren->pPal = g_new0(WPGColorRGB, 256); When handling a WPG_COLORMAP record, the parser reads a start index (i16) and number of colors (iNum16) from the file and reads palette data with: bRet &= (iNum16 == (int)fread(&ren->pPal[i16], sizeof(WPGColorRGB), iNum16, f)); The only bounds-related check is `if (i16 >= 0 && i16 <= iSize)`, where iSize is the WPG record size—not the palette capacity. There is no validation that i16 is less than 256 or that i16 + iNum16 does not exceed 256. A malicious WPG file can supply i16=256 and iNum16=264. That causes fread() to write 792 bytes starting at &pPal[256], while the palette buffer is only 768 bytes (256 entries × 3 bytes). This overflows into adjacent heap metadata and can crash Dia (SIGABRT / malloc corruption errors) or, depending on heap layout and exploit primitives, potentially lead to arbitrary code execution. Exploitation requires convincing a user to open a crafted WPG file via Dia's file dialog, command line, or file association. No special privileges are required to deliver the file to the victim. Affected component: WPG parser (plug-ins/wpg/wpg-import.c). Affected versions: all Dia versions containing this code path (reporter tested Dia 0.98+git20260221-1; issue present on upstream master as of 2026-08-21).

CVSS 3.1 · 7.8 High EPSS < 1% KEV · Not listed
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CVE-2026-79142

Buffer overflow in ANGLE in Google Chrome on on Android prior to 152.0.7977.65 allowed a remote attacker to execute arbitrary code outside the sandbox via a crafted HTML page. (Chromium security severity: High)

CVSS 3.1 · 8.8 High EPSS < 1% KEV · Not listed
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CVE-2026-79130

Buffer overflow in ANGLE in Google Chrome prior to 152.0.7977.65 allowed a remote attacker to execute arbitrary code outside the sandbox via a crafted HTML page. (Chromium security severity: High)

CVSS 3.1 · 9.6 Critical EPSS < 1% KEV · Not listed
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CVE-2026-79216

Buffer overflow in Blink in Google Chrome prior to 152.0.7977.65 allowed a remote attacker who had compromised the renderer process to execute arbitrary code inside the sandbox via a crafted HTML page. (Chromium security severity: Medium)

CVSS 3.1 · 7.5 High EPSS < 1% KEV · Not listed
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CVE-2026-18271

Kenwood DNR1007XR vCardParser Heap-based Buffer Overflow Code Execution Vulnerability

Kenwood DNR1007XR vCardParser Heap-based Buffer Overflow Code Execution Vulnerability. This vulnerability allows physically present attackers to execute arbitrary code on affected installations of Kenwood DNR1007XR devices. Authentication is not required to exploit this vulnerability. The specific flaw exists within the vCardParser class. The issue results from the lack of proper validation of a user-supplied string before copying it to a heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of root. Was ZDI-CAN-28974.

CVSS 3.0 · 6.8 Medium EPSS < 1% KEV · Not listed
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CVE-2026-78948

Buffer overflow in WebGL in Google Chrome prior to 152.0.7977.65 allowed a remote attacker to execute arbitrary code outside the sandbox via a crafted HTML page. (Chromium security severity: High)

CVSS 3.1 · 9.6 Critical EPSS < 1% KEV · Not listed
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CVE-2026-78156

Open5GS S6a Authentication-Information-Request hss-s6a-path.c hss_ogs_diam_s6a_air_cb heap-based overflow

A security vulnerability has been detected in Open5GS 2.8.0. Affected by this issue is the function hss_ogs_diam_s6a_air_cb of the file src/hss/hss-s6a-path.c of the component S6a Authentication-Information-Request Handler. Such manipulation of the argument Visited-PLMN-Id leads to heap-based buffer overflow. The attack may be performed from remote. The name of the patch is a9c82ee0b590d76a581b0580cb46b598984e2392. A patch should be applied to remediate this issue.

CVSS 4.0 · 5.3 Medium EPSS < 1% KEV · Not listed
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