CVE-2026-5107 | FRRouting FRR up to 10.5.1 EVPN Type-2 Route bgpd/bgp_evpn.c process_type2_route access control (ID 21098)
VulDBArchived Mar 29, 2026✓ Full text saved
A vulnerability, which was classified as critical , has been found in FRRouting FRR up to 10.5.1 . This affects the function process_type2_route of the file bgpd/bgp_evpn.c of the component EVPN Type-2 Route Handler . The manipulation leads to improper access controls. This vulnerability is documented as CVE-2026-5107 . The attack can be initiated remotely. There is not any exploit available. To fix this issue, it is recommended to deploy a patch.
Full text archived locally
✦ AI Summary· Claude Sonnet
VDB-354132 · CVE-2026-5107 · ID 21098
FRROUTING FRR UP TO 10.5.1 EVPN TYPE-2 ROUTE BGPD/BGP_EVPN.C PROCESS_TYPE2_ROUTE ACCESS CONTROL
HISTORYDIFFRELATEJSONXMLCTI
CVSS Meta Temp Score Current Exploit Price (≈) CTI Interest Score
4.0 $0-$5k 1.78+
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.
Productinfo
Vendor
FRRouting
Name
FRR
Version
10.5.0
10.5.1
License
open-source
Website
Product: https://github.com/FRRouting/frr/
CPE 2.3info
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CPE 2.2info
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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
Vector Complexity Authentication Confidentiality Integrity Availability
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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
03/29/2026 +0 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
Entryinfo
Created: 03/29/2026 20:00
Changes: 03/29/2026 20:00 (57)
Complete: 🔍
Submitter: rensiru
Cache ID: 99:DF6:101
Submitinfo
Accepted
Submit #780123: FRRouting FRR 10.5.1 Improper Input Validation (by rensiru)
Discussion
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