CVE-2026-45799
📛 CVE Title
(no title)
Description
Wire: skipGroup() missing negative-length check allows 10-byte payload to crash any Wire-decoding service
Overview
- State
- —
- Assigner (CNA)
- —
- CVSS severity
- high
- CVSS score
- 7.5 / 10
- CVSS vector
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H- Effective score
- 7.5 / 10 HIGH source: CNA overview
- CWE(s)
- —
- Reserved
- —
- Published
- —
- Last updated
- —
- Source
- https://www.tenable.com/cve/CVE-2026-45799
- Linked Threat
- CVE-2026-45799 — CVE-2026-45799
NVD / KEV / EPSS data refreshed 2026-05-25 00:09 UTC. Re-run the 🛰 Backfill from NVD button above to refresh.
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-2026-45301 - Assigner
- GitHub_M
- Published
- Jul 17, 2026, 7:49:30 PM
- Updated
- Jul 20, 2026, 1:51:25 PM
- EUVD base score (CVSS 3.1)
-
7.5 / 10
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - EUVD-reported EPSS
- 0.5500
- Vendors
- square
- Products
-
Wire (< 6.3.0)Wire (7.0.0-alpha01, < 7.0.0-alpha03)
- Aliases
-
GHSA-7xpr-hc2w-34m9
ENISA description: Wire provides gRPC and protocol buffers for Android, Kotlin, Swift, and Java. Prior to 6.3.0 and 7.0.0-alpha03, ByteArrayProtoReader32.skipGroup() and ProtoReader.skipGroup() in wire-runtime do not validate that a LENGTH_DELIMITED field length is non-negative before skip(), allowing a crafted protobuf varint encoding -128 as a signed Int to make skip(-128) move the internal position negative and make the next readByte() throw ArrayIndexOutOfBoundsException instead of the documented IOException or ProtocolException, which can crash services using ProtoAdapter.decode(byte[]) on untrusted payloads. This issue is fixed in versions 6.3.0 and 7.0.0-alpha03.
EUVD references (7)
- https://github.com/square/wire/security/advisories/GHSA-7xpr-hc2w-34m9
- https://github.com/square/wire/pull/3595
- https://github.com/square/wire/pull/3597
- https://github.com/square/wire/commit/47d5b0dba53935d5332cd41a80a353b3fc90e7b0
- https://github.com/square/wire/commit/e4e56fab38a547d9625f05c97f1d8f0bcc3a5773
- https://github.com/square/wire/releases/tag/6.3.0
- https://github.com/square/wire/releases/tag/7.0.0-alpha03
Vendor references (0)
References embedded in the original CVE record by the assigning CNA.
None in the CVE record.
Web references (2)
DuckDuckGo results ranked by threat-intel / vendor advisory domains. Generated by the 🔎 Find references (web) button above — same flow as the Remediations search.
- https://nvd.nist.gov/vuln/detail/CVE-2026-45799 tenable:nvd.nist.gov
- https://www.cve.org/CVERecord?id=CVE-2026-45799 tenable:www.cve.org
Remediations (10)
Remediations are stored against the linked Threat row; the list below is deduplicated across both pages.
-
web:cyberpress.org
The U.S. Cybersecurity and Infrastructure Security Agency (CISA) has added two actively exploited Microsoft Defender vulnerabilities to its Known Exploited Vulnerabilities (KEV) catalog, issuing an urgent remediation directive for federal agencies with a due date of June 3, 2026 .
2026-05-26 02:56 UTC -
web:portal.msrc.microsoft.com
The Security Update Guide provides information on the latest Microsoft security updates, helping users understand and address potential vulnerabilities effectively.
2026-05-26 02:56 UTC -
web:thewincentral.com
Microsoft rolls out Windows 11 KB5083769 (April 2026 update). New features & fixes. How to download. - Read in Latest News on WinCentral
2026-05-26 02:56 UTC -
web:www.anavem.com
KB5073379 is a January 2026 security update that addresses multiple vulnerabilities in Windows Server 2025, including critical remote code execution flaws in Active Directory and DNS services.
2026-05-26 02:56 UTC -
web:www.csoonline.com
Microsoft released emergency fixes for two zero-day vulnerabilities in the malware protection components of Microsoft Defender. The flaws allow local attackers to gain system-level privileges or ...
2026-05-26 02:56 UTC -
web:www.neowin.net
Here's how it works. Windows 11 KB5083769 April 2026 Patch Tuesday update is now available to download The latest Windows 11 Patch Tuesday updates for April 2026 are now available.
2026-05-26 02:56 UTC -
web:www.notebookcheck.net
Microsoft April 2026 Patch Tuesday fixes 167 vulnerabilities, including an actively exploited SharePoint zero-day. Windows 11 KB5083769 and KB5082052 bring new builds and RDP security.
2026-05-26 02:56 UTC -
web:www.oracle.com
This Critical Patch Update contains 481 new security patches across the product families listed below. Please note that an MOS note summarizing the content of this Critical Patch Update and other Oracle Software Security Assurance activities is located at April 2026 Critical Patch Update: Executive Summary and Analysis.
2026-05-26 02:56 UTC -
web:www.techrepublic.com
Microsoft's April 2026 Patch Tuesday fixes 165 vulnerabilities, including two zero-days, in one of the company's largest monthly security updates.
2026-05-26 02:56 UTC -
web:www.windowslatest.com
Windows 11 April 2026 update adds Narrator Copilot support, faster Settings, File Explorer fixes, and key security improvements.
2026-05-26 02:56 UTC
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