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CVE-2026-8187

📛 CVE Title

Open5GS UPF gtp-path.c _gtpv1_u_recv_cb resource consumption

⬇ Download JSON ⚠ View as Threat

Description

A flaw has been found in Open5GS up to 2.7.7. This impacts the function _gtpv1_u_recv_cb of the file src/upf/gtp-path.c of the component UPF. Executing a manipulation can lead to resource consumption. The attack may be performed from remote. The project was informed of the problem early through an issue report but has not responded yet.

Overview

State
PUBLISHED
Assigner (CNA)
VulDB
CVSS severity
MEDIUM
CVSS score
CVSS 6.9 / 10 6.9 6.9 / 10
CVSS vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X
Effective score
6.9 / 10 MEDIUM source: CNA overview
CWE(s)
CWE-400, CWE-404
Reserved
2026-05-08
Published
2026-05-09 12:58 UTC
Last updated
2026-05-11 17:15 UTC
Source
https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2026/8xxx/CVE-2026-8187.json
Linked Threat
CVE-2026-8187 — CVE-2026-8187

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
2026-05-09 11:16:28 UTC
NVD last modified
2026-05-13 16:08:09 UTC
NVD CVSS v3.1
CVSS 5.3 / 10 5.3 5.3 / 10 MEDIUM source: cna@vuldb.com
NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Exploitability subscore
3.9 / 10
Impact subscore
1.4 / 10
EPSS score
0.0003 (probability of exploitation in next 30 days)
EPSS percentile
9.65% vs all CVEs — higher = more likely to be exploited, as of 2026-05-24

NVD / KEV / EPSS data refreshed 2026-05-25 06:21 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-2026-28911
Assigner
VulDB
Published
May 9, 2026, 10:58:26 AM
Updated
May 11, 2026, 3:15:56 PM
EUVD base score (CVSS 4.0)
6.9 / 10
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X
EUVD-reported EPSS
0.0300
Vendors
n/a
Products
Open5GS (2.7.0)
Open5GS (2.7.1)
Open5GS (2.7.3)
Open5GS (2.7.6)
Open5GS (2.7.4)
Open5GS (2.7.5)
Open5GS (2.7.7)
Open5GS (2.7.2)

ENISA description: A flaw has been found in Open5GS up to 2.7.7. This impacts the function _gtpv1_u_recv_cb of the file src/upf/gtp-path.c of the component UPF. Executing a manipulation can lead to resource consumption. The attack may be performed from remote. The project was informed of the problem early through an issue report but has not responded yet.

EUVD references (5)

Affected products (1)
VendorProductVersionsPlatforms
n/a Open5GS 2.7.0 (affected), 2.7.1 (affected), 2.7.2 (affected), 2.7.3 (affected), 2.7.4 (affected), 2.7.5 (affected), 2.7.6 (affected), 2.7.7 (affected) —

Affected products — CPE 2.3 (1) NVD

NVD's normalized CPE 2.3 matchers, used by vendor tools (vulnerability scanners, asset managers) for automated detection. Compare with the CNA's free-text "Affected products" section above.

  • cpe:2.3:a:open5gs:open5gs:*:*:*:*:*:*:*:*

Vendor references (5)

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

MITRE references (5) cveawg.mitre.org

Pulled from MITRE's CVE Services API by the 🛰 Backfill from MITRE button.

Web references (3)

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

NVD-tagged references (6)

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 (15)

Remediations are stored against the linked Threat row; the list below is deduplicated across both pages.

  • Microsoft and Adobe Patch Tuesday, February 2026 Security Update Review
    web:blog.qualys.com

    Microsoft's February 2026 Patch Tuesday focuses on closing security gaps that attackers could exploit, reinforcing the importance of timely patching in enterprise environments. Here's a quick…

    2026-05-23 21:03 UTC
  • Microsoft Patch Tuesday March 2026 - 78 Vulnerabilities Fixed ...
    web:cybersecuritynews.com

    Microsoft released its March 2026 Patch Tuesday security update on March 10, 2026 , addressing 78 vulnerabilities across Windows, Microsoft Office, Azure, SQL Server, and .NET. The update includes one actively exploited zero-day vulnerability and multiple Critical-rated flaws demanding immediate attention from security teams. The most urgent fix this month is CVE - 2026 -21262, the sole zero-day ...

    2026-05-23 21:03 UTC
  • GitHub - Wemino/MadnessPatch: A patch that fixes various issues in the ...
    web:github.com

    The game was originally designed for consoles and limits subtitle size above 720p, making text harder to read on 1080p or higher. This fix removes that limit so subtitles scale correctly with your resolution. If you want a different size, you can fine-tune it with FontScalingFactor in MadnessPatch.ini.

    2026-05-23 21:03 UTC
  • Security Update Guide - Microsoft
    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 21:03 UTC
  • February's Patch Tuesday release fixes 59 flaws ... - Computerworld
    web:www.computerworld.com

    Each month, the team at Readiness analyzes the latest Patch Tuesday updates from Microsoft and provides detailed, actionable testing guidance. The company's Patch Tuesday release for February ...

    2026-05-23 21:03 UTC
  • January 2026 Patch Tuesday: Updates and Analysis | CrowdStrike
    web:www.crowdstrike.com

    Microsoft has released security updates for 114 vulnerabilities, including three zero-days, plus eight critical CVEs in its January 2026 Patch Tuesday rollout.

    2026-05-23 21:03 UTC
  • Oracle Critical Patch Update Advisory - April 2026
    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 21:03 UTC
  • Patch Tuesday - February 2026 - Rapid7
    web:www.rapid7.com

    Microsoft is publishing a relatively light 55 vulnerabilities this Patch Tuesday, including six zero-day vulnerabilities already exploited in the wild.

    2026-05-23 21:03 UTC
  • Windows 11 April 2026 Update tested: What's new, improved and fixed
    web:www.windowslatest.com

    Windows 11 April 2026 update adds Narrator Copilot support, faster Settings, File Explorer fixes, and key security improvements.

    2026-05-23 21:03 UTC
  • Patch Tuesday May 2026: Security Updates & CVE Analysis
    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 21:03 UTC
  • Windows Kerberos RC4 deprecation: what will break in Active ... - 4sysops
    web:4sysops.com

    Starting in April 2026 , Windows updates will change the default Kerberos ticket issuance behavior to AES-SHA1 for accounts without explicit encryption settings, while RC4 can still be used where explicitly enabled. This change, driven by CVE - 2026 -20833, affects every Windows Server environment where service accounts or devices still rely on RC4. Any service account, NAS device, or legacy ...

    2026-05-26 02:49 UTC
  • Microsoft Patch Tuesday for May 2026 — Snort rules and prominent ...
    web:blog.talosintelligence.com

    Microsoft has released its monthly security update for May 2026 , which includes 137 vulnerabilities affecting a range of products, including 16 that Microsoft marked as "critical".

    2026-05-26 02:49 UTC
  • Critical Microsoft Exchange Server Vulnerability Actively Exploited in ...
    web:cybersecuritynews.com

    Microsoft Exchange Server spoofing flaw, is being actively exploited against on-premises systems before a permanent patch is available.

    2026-05-26 02:49 UTC
  • April 2026 Patch Tuesday: Updates and Analysis | CrowdStrike
    web:www.crowdstrike.com

    Microsoft's April 2026 Patch Tuesday addresses 164 CVEs , featuring 8 Critical vulnerabilities, one exploited zero-day, and one disclosed zero-day.

    2026-05-26 02:49 UTC
  • Microsoft Confirms Active 0-Day Exploit—Check Emergency Mitigation
    web:www.forbes.com

    Updated May 17: This article, originally published May 16, has been updated to include further details on the emergency mitigation process recommended after the CVE - 2026 -42897 Microsoft Exchange ...

    2026-05-26 02:49 UTC

AI Forensic Analysis

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Raw JSON

The full cvelistV5 record. Download as CVE-2026-8187.json.

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  "containers": {
    "adp": [
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        "metrics": [
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                "id": "CVE-2026-8187",
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                  },
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                  },
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                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-05-11T15:14:34.870316Z",
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    "dateReserved": "2026-05-08T19:47:09.540Z",
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