CVE-2026-37459
📛 CVE Title
CVE-2026-37459
Description
An integer underflow in FRRouting (FRR) stable/10.0 to stable/10.6 allows attackers to cause a Denial of Service (DoS) via supplying a crafted BGP UPDATE message.
Overview
- State
- PUBLISHED
- Assigner (CNA)
- mitre
- 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
- MSRC score
- 7.5 / 10 HIGH MS rating: Moderate
- CWE(s)
-
CWE-400 - Reserved
- 2026-04-06
- Published
- 2026-05-04 02:00 UTC
- Last updated
- 2026-05-04 21:48 UTC
- Source
- https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/37xxx/CVE-2026-37459.json
- Linked Threat
- CVE-2026-37459 — CVE-2026-37459
NVD triage scoring NVD CVE 2.0
Layer NVD adds on top of the CNA's CVE record — published / last-modified timestamps, exploitability / impact subscores, and the FIRST.org EPSS probability that this CVE will be exploited in the wild in the next 30 days.
- NVD published
- 2026-05-04 18:16:28 UTC
- NVD last modified
- 2026-05-05 19:47:31 UTC
- NVD CVSS v3.1
- 7.5 / 10 HIGH source: 134c704f-9b21-4f2e-91b3-4a467353bcc0
- NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H- Exploitability subscore
- 3.9 / 10
- Impact subscore
- 3.6 / 10
- EPSS score
- 0.0005 (probability of exploitation in next 30 days)
- EPSS percentile
- 16.41% vs all CVEs — higher = more likely to be exploited, as of 2026-05-24
NVD / KEV / EPSS data refreshed 2026-05-25 12:10 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-2026-27047 - Assigner
- mitre
- Published
- May 4, 2026, 12:00:00 AM
- Updated
- May 4, 2026, 7:48:06 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
- 0.0500
- Vendors
- n/a
- Products
-
n/a (n/a)
ENISA description: An integer underflow in FRRouting (FRR) stable/10.0 to stable/10.6 allows attackers to cause a Denial of Service (DoS) via supplying a crafted BGP UPDATE message.
EUVD references (1)
Microsoft Security Response Center MSRC
Microsoft's vendor-authoritative record from the Security Update Guide — its own CVSS score, impact, severity rating, exploit assessment, and KB-article fixes. Refreshed 2026-08-15 03:01 UTC (source: CVRF).
- MS severity
- Moderate
- MS CVSS base score
- 7.5 / 10 (temporal 6.9)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U - Release
- 2026-May
Affected products (1)
| Vendor | Product | Versions | Platforms |
|---|---|---|---|
| n/a | n/a |
n/a (affected)
|
— |
Vendor references (1)
References embedded in the original CVE record by the assigning CNA.
Web references (5)
DuckDuckGo results ranked by threat-intel / vendor advisory domains. Generated by the 🔎 Find references (web) button above — same flow as the Remediations search.
- MSRC update guide: CVE-2026-37459 msrc
- https://github.com/FRRouting/frr/commit/693a2e02687cdc9d16501275e05136edea9650d9 tenable:github.com
- https://nvd.nist.gov/vuln/detail/CVE-2026-37459 tenable:nvd.nist.gov
- https://www.cve.org/CVERecord?id=CVE-2026-37459 tenable:www.cve.org
- https://www.first.org/epss/ tenable:www.first.org
NVD-tagged references (1)
Reference list NVD curates from the CNA record, vendor advisories, and third-party reports. The tag chips below are NVD's analyst-assigned categories.
Remediations (20)
Remediations are stored against the linked Threat row; the list below is deduplicated across both pages.
-
web:blog.qualys.com
With Qualys Policy Audit's out-of-the-box mitigation or Compensatory Controls, which reduce the risk of a vulnerability being exploited because the remediation ( fix / patch ) cannot be done immediately, these security controls are not recommended by any industry standards, such as CIS and DISA-STIG.
2026-05-23 19:08 UTC -
web:cisa.gov
Update (08/12/2025): CISA has updated this alert to provide clarification on identifying Exchange Servers on an organization's networks and provided further guidance on running the Microsoft Exchange Health Checker. Update (08/07/2025): CISA issued Emergency Directive (ED) 25-02: Mitigate Microsoft Exchange Vulnerability in response to CVE -2025-53786
2026-05-23 19:08 UTC -
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 .
2026-05-23 19:08 UTC -
web:krebsonsecurity.com
Microsoft Corp. today issued security updates to fix more than 80 vulnerabilities in its Windows operating systems and software. There are no known "zero-day" or actively exploited ...
2026-05-23 19:08 UTC -
web:nvd.nist.gov
This is a potential security issue, you are being redirected to https://nvd.nist.gov
2026-05-23 19:08 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.
2026-05-23 19:08 UTC -
web:support.sap.com
SAP security patch day bulletin
2026-05-23 19:08 UTC -
web:www.bugcrowd.com
Vulnerability mitigation is typically considered a temporary or interim solution. While mitigation measures can reduce the immediate risk associated with vulnerabilities, they may not provide a permanent fix . Organizations should aim to prioritize and plan for complete vulnerability remediation whenever feasible and allocate resources accordingly.
2026-05-23 19:08 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.
2026-05-23 19:08 UTC -
web:zecurit.com
Get the complete breakdown of Microsoft's May 2026 Patch Tuesday. We analyze the latest security updates and all critical CVEs .
2026-05-23 19:08 UTC -
web:cyberpress.org
A newly disclosed vulnerability in Microsoft SharePoint allows authenticated attackers to execute arbitrary code remotely over the network posing a serious risk to enterprises relying on on-premises SharePoint deployments for document management and internal collaboration.
2026-06-03 07:48 UTC -
web:cybersecuritynews.com
Microsoft has disclosed a critical security vulnerability in SharePoint Server that could allow authenticated attackers to execute arbitrary code remotely across multiple versions of the platform.
2026-06-03 07:48 UTC -
web:intruceptlabs.com
Microsoft SharePoint Remote Code Execution Vulnerability CVE - 2026 -45659 Patches Rolled out Microsoft Patches SharePoint RCE Flaw; Can Gain control of SharePoint server
2026-06-03 07:48 UTC -
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.
2026-06-03 07:48 UTC -
web:petri.com
Microsoft fixes a high‑severity SharePoint RCE flaw that allows authenticated users to execute code on affected on‑prem servers.
2026-06-03 07:48 UTC -
web:securityaffairs.com
A critical vulnerability ( CVE - 2026 -45659) in Microsoft SharePoint can allow attackers to achieve remote code execution with little effort.
2026-06-03 07:48 UTC -
web:sharkstriker.com
Through the blog, we will dissect a major RCE flaw CVE - 2026 -45659 in Microsoft SharePoint from a security POV, understanding how exploitation happens and what enterprises need to do to defend.
2026-06-03 07:48 UTC -
web:thehackernews.com
Microsoft released fixes for SharePoint remote code execution vulnerability CVE - 2026 -45659 with a CVSS score of 8.8.
2026-06-03 07:48 UTC -
web:vulert.com
CVE - 2026 -45659 is a Microsoft SharePoint Server RCE vulnerability caused by deserialization of untrusted data. Learn affected versions, impact, mitigation steps, and how Vulert can help.
2026-06-03 07:48 UTC -
web:www.helpnetsecurity.com
A high-severity remote code execution vulnerability ( CVE - 2026 -45659) in SharePoint may be exploited in low-complexity attacks.
2026-06-03 07:48 UTC
AI Forensic Analysis
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Raw JSON
The full cvelistV5 record. Download as CVE-2026-37459.json.
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"privilegesRequired": "NONE",
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