FRRouting FRR up to 10.5.1 EVPN Type-2 Route bgpd/bgp_evpn.c process_type2_route access control

CVSS Meta Temp Score
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CTI Interest Score
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4.0$0-$5k5.14-

Summaryinfo

A vulnerability, which was classified as critical, was found in FRRouting FRR up to 10.5.1. This impacts the function process_type2_route of the file bgpd/bgp_evpn.c of the component EVPN Type-2 Route Handler. The manipulation results in access control. This vulnerability is reported as CVE-2026-5107. The attack can be launched remotely. No exploit exists. It is advisable to implement a patch to correct this issue.

Detailsinfo

A vulnerability classified as critical has been found in FRRouting FRR up to 10.5.1. Affected is the function process_type2_route of the file bgpd/bgp_evpn.c of the component EVPN Type-2 Route Handler. The manipulation with an unknown input leads to a access control vulnerability. CWE is classifying the issue as CWE-284. The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. This is going to have an impact on integrity, and availability.

The advisory is shared for download at github.com. This vulnerability is traded as CVE-2026-5107. The exploitability is told to be difficult. It is possible to launch the attack remotely. There are known technical details, but no exploit is available. The MITRE ATT&CK project declares the attack technique as T1068.

Applying the patch 7676cad65114aa23adde583d91d9d29e2debd045 is able to eliminate this problem. The bugfix is ready for download at github.com.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-17060). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

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Version

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.2
VulDB Meta Temp Score: 4.0

VulDB Base Score: 4.2
VulDB Temp Score: 4.0
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Access control
CWE: CWE-284 / CWE-266
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔒

Patch: 7676cad65114aa23adde583d91d9d29e2debd045

Timelineinfo

03/29/2026 Advisory disclosed
03/29/2026 +0 days VulDB entry created
03/30/2026 +1 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: 21098
Status: Confirmed

CVE: CVE-2026-5107 (🔒)
GCVE (CVE): GCVE-0-2026-5107
GCVE (VulDB): GCVE-100-354132
EUVD: 🔒

Entryinfo

Created: 03/29/2026 20:00
Updated: 03/30/2026 09:09
Changes: 03/29/2026 20:00 (57), 03/30/2026 09:09 (1)
Complete: 🔍
Submitter: rensiru
Cache ID: 216:20D:103

Submitinfo

Accepted

  • Submit #780123: FRRouting FRR 10.5.1 Improper Input Validation (by rensiru)

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