CVE-2018-5381

mediumpriority · track · 41EPSS 0.302 · 98 %ileDEEUUS

grimoire priorityP1 · Urgent

Exploitable?

—

no known exploitation

Likely / severe?

30.2% (98th) EPSS

CVSS 5 · medium

Is it mine?

26 products

Check your exposure

Who says so?

5 sources

cnnvd · enisa_euvd · cert_bund · cisa_csaf_ot

EPSS · scored 2026-10-27

The Quagga BGP daemon (bgpd) prior to version 1.2.3 has a bug in its parsing of "Capabilities" in BGP OPEN messages, in the bgp_packet.c:bgp_capability_msg_parse function. The parser can enter an infinite loop on invalid capabilities if a Multi-Protocol capability does not have a recognized AFI/SAFI, causing a denial of service.

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

A vendor fix is available.

FixedRUGGEDCOM ROX IIcisa_csaf_ot
Update to V2.13.0 - Download: The firmware updates for the RUGGEDCOM ROX-based devices can be obtained by contacting the RUGGEDCOM support team at: https://support.industry.siemens.com/my/WW/en/requests#createRequest
https://support.industry.siemens.com/my/WW/en/requests
MitigationRUGGEDCOM ROX IIcisa_csaf_ot
Siemens has identified the following specific workarounds and mitigations thatcustomers can apply to reduce the risk: Configure BGP passwords to authenticate BGP neighbours.

cvss

Technical severity, 0–10. One row per scoring source.

7.5

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 5–7.5

v2.05mediumAV:N/AC:L/Au:N/C:N/I:N/A:Pprimary · NVD / NIST USexploitability 10 · impact 2.9

v3.07.5highCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hprimary · NVD / NIST USexploitability 3.9 · impact 3.6

v3.07.5highCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O/RC:Csecondary · CISA US

v3.06.5mediumCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:Hsecondary · ENISA EU

v3.06.5mediumCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:Hsecondary · cret@cert.org USexploitability 2.8 · impact 3.6

v3.06.9mediumCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-835USprimaryCWE-228USCWE-228US

affected products (26)

Products and version ranges known to be affected.

Debian Linux Jessie (8.0)all versionscert_bundDEcpe:/o:debian:debian_linux:8.0
Debian Linux Stretch (9.0) 9all versionscert_bundDEcpe:/o:debian:debian_linux:9.0
Open Source CentOSall versionscert_bundDEcpe:/o:centos:centos:-
Open Source quagga <1.2.3all versionscert_bundDE
Oracle Linuxall versionscert_bundDEcpe:/o:oracle:linux:-
Red Hat Enterprise Linux 5all versionscert_bundDEcpe:/o:redhat:enterprise_linux:5
Red Hat Enterprise Linux 6all versionscert_bundDEcpe:/o:redhat:enterprise_linux:6
Red Hat Enterprise Linux 7all versionscert_bundDEcpe:/o:redhat:enterprise_linux:7
SUSE Linuxall versionscert_bundDEcpe:/o:suse:suse_linux:-
SUSE Linux 12 SP2all versionscert_bundDEcpe:/o:suse:suse_linux:12_sp2
SUSE Linux 12 SP3all versionscert_bundDEcpe:/o:suse:suse_linux:12::sp3
Ubuntu Linux 14.04 LTSall versionscert_bundDEcpe:/o:canonical:ubuntu_linux:14.04_lts
Ubuntu Linux 16.04 LTSall versionscert_bundDEcpe:/o:canonical:ubuntu_linux:16.04_lts
Ubuntu Linux 17.10all versionscert_bundDEcpe:/o:canonical:ubuntu_linux:17.10
Open Source quagga< 1.2.3cert_bundDE
RUGGEDCOM ROX IIall versionscisa_csaf_otUS
Siemens RUGGEDCOM ROX II< V2.13.0cisa_csaf_otUS
quagga bgpdbpgd → 1.2.3enisa_euvdEU
canonical ubuntu linux= 14.04nvdUScpe:2.3:o:canonical:ubuntu_linux:*:*:*:*:*:*:*:*
canonical ubuntu linux= 16.04nvdUScpe:2.3:o:canonical:ubuntu_linux:*:*:*:*:*:*:*:*

showing 20 of 26

advisories (2)

Vendor and ecosystem advisories describing this.

WID-SEC-W-2024-2213quagga: Mehrere SchwachstellenDeutsch2018-02-15csaf · cert_bundDE
Ein entfernter, authentisierter Angreifer kann mehrere Schwachstellen in quagga ausnutzen um Informationen offenzulegen, um beliebigen Programmcode mit den Rechten des Dienstes auszuführen und um einen Denial of Service Zustand herbeizuführen.
ICSA-19-099-05ICSA-19-099-05 Siemens RUGGEDCOM ROX II2019-04-09icsa · cisa_csaf_otUS
CISA recommends users take defensive measures to minimize the exploitation risk of this vulnerability.

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd cert_bund cisa_csaf_ot nvd NVD CVE.org MITRE

published 2018-02-19modified 2026-06-17

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+1369 more

references (26)

External citations — patches, advisories, analysis.

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