CVE-2026-88373

Description

libde265 commit 4d45a6b contains a NULL pointer dereference vulnerability in the NAL parsing path. When de265_push_NAL() is called with a zero-length NAL unit, the resulting NAL_unit may retain a NULL backing buffer, which is subsequently passed as the destination argument to memcpy() in NAL_unit::set_data(). Although the copy length is zero, this violates the nonnull requirement of memcpy() and results in undefined behavior, causing process termination in UBSan-instrumented builds and denial of service.

Overview

State: PUBLISHED
Assigner (CNA): mitre
CVSS severity: —
CVSS score: —
CVSS vector: —
Effective score: no score available from CNA, NVD, or AI yet
CWE(s): —
Reserved: 2026-09-10
Published: 2026-09-24 00:00 UTC
Last updated: 2026-09-24 16:35 UTC
Source: https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/88xxx/CVE-2026-88373.json

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European Union Vulnerability Database ENISA EUVD

ENISA's official EU repository for curated vulnerability intelligence. Carries a separate identifier (EUVD-YYYY-NNNN) and frequently exposes an earlier-published description + CVSS than NVD does.

EUVD ID: EUVD-2026-86314
Assigner: mitre
Published: Sep 24, 2026, 12:00:00 AM
Updated: Sep 24, 2026, 4:35:04 PM
EUVD base score: 0.0 / 10
EUVD-reported EPSS: 0.0000
Vendors: n/a
Products: n/a (n/a)
Aliases: GHSA-24mr-r2pj-2fq7

ENISA description: libde265 commit 4d45a6b contains a NULL pointer dereference vulnerability in the NAL parsing path. When de265_push_NAL() is called with a zero-length NAL unit, the resulting NAL_unit may retain a NULL backing buffer, which is subsequently passed as the destination argument to memcpy() in NAL_unit::set_data(). Although the copy length is zero, this violates the nonnull requirement of memcpy() and results in undefined behavior, causing process termination in UBSan-instrumented builds and denial of service.

EUVD references (2)

Affected products (1)

Vendor	Product	Versions	Platforms
n/a	n/a	`n/a` (affected)	—

Vendor references (2)

References embedded in the original CVE record by the assigning CNA.

Web references (0)

DuckDuckGo results ranked by threat-intel / vendor advisory domains. Generated by the 🔎 Find references (web) button above — same flow as the Remediations search.

No web references attached yet.

Remediations (10)

CVE-2026-88373: NULL Pointer Dereference | CVETodo

web:cvetodo.com

CVE-2026-88373 is a NULL Pointer Dereference vulnerability. Full technical analysis, mitigations , and exploit status — updated in real time.

2026-09-25 10:46 UTC
Security Update Guide - Microsoft

web:msrc.microsoft.com

The Microsoft Security Response Center (MSRC) investigates all reports of security vulnerabilities affecting Microsoft products and services, and provides the information here as part of the ongoing effort to help you manage security risks and help keep your systems protected.

2026-09-25 10:46 UTC
Security Update Guide - Microsoft Security Response Center

web:msrc.microsoft.com

Security Update Guide - Microsoft Security Response Center

2026-09-25 10:46 UTC
Cisco Advance Notification for Publication of September 16, 2026 ...

web:sec.cloudapps.cisco.com

On September 16, 2026 , the Cisco Product Security Incident Response Team (PSIRT) published the advisories that are listed in the following tables. To remediate these vulnerabilities, Cisco strongly recommends that customers upgrade to the fixed software that is indicated in the advisories. For more information about changes in Cisco PSIRT vulnerability disclosure, see Strengthening the ...

2026-09-25 10:46 UTC
Description of the security update for Office 2016: August 11, 2026 ...

web:support.microsoft.com

Be aware that the update in the Microsoft Download Center applies to the Microsoft Installer (.msi)-based edition of Office 2016. It doesn't apply to the Office 2016 Click-to-Run editions, such as Microsoft Office 365 Home. (See What version of Office am I using?) How to get and install the update Method 1: Microsoft Update This update is available from Microsoft Update. When you turn on ...

2026-09-25 10:46 UTC
July 18, 2026—Hotpatch KB5121768 (OS Builds 26200.8893 and 26100.8893 ...

web:support.microsoft.com

This out-of-band (OOB) update for Windows 11, version 25H2 and Windows 11, version 24H2 (KB5121768) is cumulative. It includes all improvements from previous security and non-security updates, along with an additional fix . Improvements This OOB update includes the following improvement: [System Performance] This update addresses an issue affecting a limited number of devices with an Intel ...

2026-09-25 10:46 UTC
Database CVE, CWE, CISA KEV & Vulnerability Intelligence | CVE Find

web:www.cvefind.com

CVE Find is a real-time vulnerability database indexing 397 484 security flaws ( CVE ) from MITRE, NVD, CISA KEV, CWE and CAPEC. 2476 new CVEs were published in the last 7 days. Data aggregated from: MITRE Corporation ( CVE , CWE, CAPEC), National Vulnerability Database - NIST (NVD), CISA Known Exploited Vulnerabilities (KEV), FIRST (EPSS).

2026-09-25 10:46 UTC
DSA-2026-353: Security Update for Cloud Disaster Recovery ...

web:www.dell.com

Cloud Disaster Recovery remediation is available for multiple security vulnerabilities that could be exploited by malicious users to compromise the affected system.

2026-09-25 10:46 UTC
How To Patch After Microsoft Confirms 973 Security Vulnerabilities - Forbes

web:www.forbes.com

Microsoft has patched 973 vulnerabilities, including actively exploited Windows CVE - 2026 -85880 and CVE - 2026 -81963 bugs. How should your organization respond to stay safe?

2026-09-25 10:46 UTC
Oracle Critical Patch Update Advisory - July 2026

web:www.oracle.com

This Critical Patch Update contains 1448 new security patches across the product families listed below. Please note that a My Oracle Support (MOS) note summarizing the content of this Critical Patch Update and other Oracle Software Security Assurance activities is located at July 2026 Critical Patch Update: Executive Summary and Analysis.

2026-09-25 10:46 UTC

AI Forensic Analysis

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Raw JSON

The full cvelistV5 record. Download as CVE-2026-88373.json.

{
  "containers": {
    "cna": {
      "affected": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "libde265 commit 4d45a6b contains a NULL pointer dereference vulnerability in the NAL parsing path. When de265_push_NAL() is called with a zero-length NAL unit, the resulting NAL_unit may retain a NULL backing buffer, which is subsequently passed as the destination argument to memcpy() in NAL_unit::set_data(). Although the copy length is zero, this violates the nonnull requirement of memcpy() and results in undefined behavior, causing process termination in UBSan-instrumented builds and denial of service."
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
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              "lang": "en",
              "type": "text"
            }
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      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-24T16:35:04.592Z",
        "orgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
        "shortName": "mitre"
      },
      "references": [
        {
          "url": "https://github.com/strukturag/libde265/issues/534"
        },
        {
          "url": "https://github.com/strukturag/libde265/commit/f8d324914e43d92af23614f22959cf9eee7bf9ea"
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2026-88373",
    "datePublished": "2026-09-24T00:00:00.000Z",
    "dateReserved": "2026-09-10T00:00:00.000Z",
    "dateUpdated": "2026-09-24T16:35:04.592Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}