CVE-2020-27827

highpriority · track · 31EPSS 0.032 · 88 %ileDEEURUUS
grimoire priorityP2 · Scheduled
Exploitable?
—
no known exploitation
Likely / severe?
3.23% (88th) EPSS
CVSS 7.1 · high
Is it mine?
105 products
Check your exposure
Who says so?
6 sources
cnnvd · enisa_euvd · fstec_bdu · cert_bund

EPSS · scored 2026-10-27

A flaw was found in multiple versions of OpenvSwitch. Specially crafted LLDP packets can cause memory to be lost when allocating data to handle specific optional TLVs, potentially causing a denial of service. The highest threat from this vulnerability is to system availability.

01

remediations

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

A vendor fix is available.

02

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 · 6.9–7.5

v2.07.1highAV:N/AC:M/Au:N/C:N/I:N/A:Cprimary · NVD / NIST USexploitability 8.6 · impact 6.9
v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hprimary · NVD / NIST USexploitability 3.9 · impact 3.6
v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O/RC:Csecondary · CISA US
v3.17.5highAV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · FSTEC (BDU) RU
v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondary · ENISA EU
v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:Hsecondaryexploitability 3.9 · impact 3.6
v3.17.5highCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:P/RL:O/RC:Csecondary · Siemens ProductCERT DE
v3.16.9mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:Usecondary · CVSS-BT (t0sche)
03

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Exploitation: none · Automatable: yes · Technical Impact: partialcoordinatorcisa_ssvcUS
04

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-400USCWE-400USCWE-400USCWE-400US
05

affected products (105)

Products and version ranges known to be affected.

showing 20 of 105
06

advisories (3)

Vendor and ecosystem advisories describing this.

  • SSA-941426SSA-941426: Multiple LLDP Vulnerabilities in Industrial Products2021-07-13csaf · siemens_psirtDE

    There are multiple vulnerabilities in an underlying Link Layer Discovery Protocol (LLDP) third party library. Siemens has released updates for the affected products and recommends to update to the latest versions.

  • WID-SEC-W-2023-0916Red Hat Enterprise Linux: Mehrere Schwachstellen ermöglichen Denial of ServiceDeutsch2021-02-11csaf · cert_bundDE

    Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in Red Hat Enterprise Linux und SUSE Linux ausnutzen, um einen Denial of Service Angriff durchzuführen.

  • ICSA-21-194-07Siemens Industrial Products LLDP (Update D)2021-07-13icsa · cisa_csaf_otUS

    There are multiple vulnerabilities in an underlying Link Layer Discovery Protocol (LLDP) third party library. Siemens has released updates for the affected products and recommends to update to the latest versions.

07

also known as (4)

Other names and identifiers for this entity.

08

sources

Which sources assert this record, and when.

cnnvdenisa_euvdfstec_bducert_bundcisa_csaf_otsiemens_psirtNVDCVE.orgMITRE
published 2021-03-18modified 2026-06-17
09

references (48)

External citations — patches, advisories, analysis.

scry

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