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CVE Record

CVE-2026-10116: Open5GS ue-authentications Endpoint ogs-timer.c ogs_sbi_xact_add denial of service

A security flaw has been discovered in Open5GS up to 2.7.7. This vulnerability affects the function ogs_sbi_xact_add in the library /lib/core/ogs-timer.c of the component ue-authentications Endpoint. Performing a manipulation results in denial of service. The attack may be initiated remotely. The exploit has been released to the public and may be used for attacks. Applying a patch is the recommended action to fix this issue.

MediumCVSS 5.3Not KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

CVE-2026-10116 is a denial-of-service issue in Open5GS versions 2.7.0 through 2.7.7. A remote attacker with low privileges may be able to disrupt availability through the ue-authentications endpoint. Public exploit material is referenced, but the bundle does not show confirmed active exploitation or KEV listing.

Executive priority

Prioritize within normal vulnerability management, faster for production telecom or private 5G environments. The business risk is service disruption, not data theft per the provided CVSS fields. Public exploit availability raises urgency, but no confirmed active exploitation is cited.

Technical view

The flaw affects ogs_sbi_xact_add in /lib/core/ogs-timer.c, tied to the Open5GS ue-authentications endpoint. It is classified as CWE-404 and scored CVSS 4.0 5.3, with network attack vector, low complexity, low privileges required, no user interaction, and low availability impact.

Likely exposure

Exposure is limited to organizations running Open5GS 2.7.0 through 2.7.7 where the affected ue-authentications/AUSF path is reachable by a low-privileged remote actor. Public-facing or broadly reachable Open5GS control-plane services warrant faster review.

Exploitation context

The source bundle says exploit material has been publicly released and may be used for attacks. It does not provide evidence of active exploitation, and KEV is false. Treat this as a credible public-exploit DoS risk, not a confirmed in-the-wild campaign.

Researcher notes

Evidence is strongest for affected versions, function/component, CVSS, CWE-404, public exploit reference, and patch-tracking PR. The bundle does not include detailed root-cause analysis, fixed release number, exploitation telemetry, or vendor advisory text beyond the listed references.

Mitigation direction

  • Inventory Open5GS deployments and identify versions 2.7.0 through 2.7.7.
  • Apply the vendor-recommended patch or fixed release when confirmed.
  • Review Open5GS PR #4578 before relying on source-level remediation.
  • Restrict access to the affected service path to trusted network segments.
  • Increase monitoring for crashes, restart loops, and degraded authentication service availability.

Validation and detection

  • Confirm whether Open5GS 2.7.0 through 2.7.7 is deployed.
  • Map exposure of the ue-authentications or AUSF-related endpoint.
  • Check whether remediation from PR #4578 or a vendor release is applied.
  • Review service logs for availability failures around authentication workflows.
  • Verify compensating network controls restrict untrusted access.
Prepared
Confidence
medium
Sources
8

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

Conservative CVE-to-ATT&CK context

These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.

ATT&CK lookup starting points

Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.

cwe · low confidence lookup

CWE-404: Exact CWE lookup

Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.

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cve · low confidence lookup

CVE-2026-10116 mapping review

Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.

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Vulnerability profileCVE Program record
Severity
Medium
CVSS
5.3 (4.0)
Known Exploited
No
Published

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

4CVSS vectors
6Timeline events
0ADP providers
7Source links

CVSS vector scores

4 official scores

We collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.

ScoreVersionSeverityVectorExploitImpactSource
5.3CVSS 4.0MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P——VulDB
4.3CVSS 3.1MediumCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C2.81.4VulDB
4.3CVSS 3.0MediumCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:O/RC:C2.81.4VulDB
4CVSS 2.0MediumAV:N/AC:L/Au:S/C:N/I:N/A:P/E:POC/RL:OF/RC:C82.9VulDB

Vulnerability scoring details

Base CVSS 4.0 score

5.3Medium
CVSS 4.0 vector shape for CVE-2026-10116Attack VectorAttack ComplexityAttack RequirementsPrivileges RequiredUser InteractionVS ConfidentialityVS IntegrityVS AvailabilitySS ConfidentialitySS IntegritySS Availability

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P

Attack Vector
NetworkAdjacentLocalPhysical
Attack Complexity
LowHigh
Attack Requirements
NonePresent
Privileges Required
NoneLowHigh
User Interaction
NonePassiveActive
VS Confidentiality
HighLowNone
VS Integrity
HighLowNone
VS Availability
HighLowNone
SS Confidentiality
HighLowNone
SS Integrity
HighLowNone
SS Availability
HighLowNone

Vulnerability timeline

Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.

  1. Source timelineVulDB

    Advisory disclosed

  2. Source timelineVulDB

    VulDB entry created

  3. CVE reservedCVE Program

    The CVE ID was reserved by the assigning CNA.

  4. Source timelineVulDB

    VulDB entry last update

  5. CVE publishedCVE Program

    The CVE record was published.

  6. CVE updatedCVE Program

    The CVE record metadata indicates this as the latest update time.

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
n/aOpen5GS2.7.0, 2.7.1, 2.7.2, 2.7.3, 2.7.4, 2.7.5, 2.7.6, 2.7.7Listed
Weakness

CWE details

CWE-404

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.

CWE-404 · source CWE mapping

Improper Resource Shutdown or Release

Improper Resource Shutdown or Release represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.

Open CWE intelligenceSame-CWE CVEs