CVE-2020-3307

mediumpriority · track · 21EPSS 0.010 · 62 %ileEURUUS

grimoire priorityP3 · Track

Exploitable?

—

no known exploitation

Likely / severe?

0.97% (62nd) EPSS

CVSS 5 · medium

Is it mine?

83 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · fstec_bdu · cisco_csaf

EPSS · scored 2026-10-27

A vulnerability in the web UI of Cisco Firepower Management Center (FMC) Software could allow an unauthenticated, remote attacker to write arbitrary entries to the log file on an affected device. The vulnerability is due to insufficient input validation. An attacker could exploit this vulnerability by sending a crafted HTTP request to an affected device. A successful exploit could allow the attacker to send incorrect information to the system log on the affected system.

remediations

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

No fix is available; mitigate or reduce exposure.

No fix available2.9.0cisco_csaf
No remediation is available at this time.
No fix available2.9.7.10cisco_csaf
No remediation is available at this time.
No fix available4.10.3cisco_csaf
No remediation is available at this time.
No fix available4.10.3.9cisco_csaf
No remediation is available at this time.
No fix available5.2.0cisco_csaf
No remediation is available at this time.
No fix available5.3.0cisco_csaf
No remediation is available at this time.
No fix available5.3.0.2cisco_csaf
No remediation is available at this time.
No fix available5.3.0.3cisco_csaf
No remediation is available at this time.
No fix available5.3.0.4cisco_csaf
No remediation is available at this time.
No fix available5.3.1cisco_csaf
No remediation is available at this time.
No fix available5.3.1.3cisco_csaf
No remediation is available at this time.
No fix available5.3.1.4cisco_csaf
No remediation is available at this time.
No fix available5.3.1.5cisco_csaf
No remediation is available at this time.
No fix available5.3.1.6cisco_csaf
No remediation is available at this time.
No fix available5.3.1.7cisco_csaf
No remediation is available at this time.
No fix available5.4.0cisco_csaf
No remediation is available at this time.
No fix available5.4.0.2cisco_csaf
No remediation is available at this time.
No fix available5.4.1cisco_csaf
No remediation is available at this time.
No fix available5.4.1.1cisco_csaf
No remediation is available at this time.
No fix available5.4.1.2cisco_csaf
No remediation is available at this time.
No fix available5.4.1.3cisco_csaf
No remediation is available at this time.
No fix available5.4.1.4cisco_csaf
No remediation is available at this time.
No fix available5.4.1.5cisco_csaf
No remediation is available at this time.
No fix available5.4.1.6cisco_csaf
No remediation is available at this time.
No fix available5.4.1.9cisco_csaf
No remediation is available at this time.
No fix available6.0.0cisco_csaf
No remediation is available at this time.
No fix available6.0.0.0cisco_csaf
No remediation is available at this time.
No fix available6.0.0.1cisco_csaf
No remediation is available at this time.
No fix available6.0.1cisco_csaf
No remediation is available at this time.
No fix available6.0.1.1cisco_csaf
No remediation is available at this time.
No fix available6.0.1.2cisco_csaf
No remediation is available at this time.
No fix available6.0.1.3cisco_csaf
No remediation is available at this time.
No fix available6.0.1.4cisco_csaf
No remediation is available at this time.
No fix available6.1.0cisco_csaf
No remediation is available at this time.
No fix available6.1.0.1cisco_csaf
No remediation is available at this time.
No fix available6.1.0.2cisco_csaf
No remediation is available at this time.
No fix available6.1.0.3cisco_csaf
No remediation is available at this time.
No fix available6.1.0.4cisco_csaf
No remediation is available at this time.
No fix available6.1.0.5cisco_csaf
No remediation is available at this time.
No fix available6.1.0.6cisco_csaf
No remediation is available at this time.
No fix available6.1.0.7cisco_csaf
No remediation is available at this time.
No fix available6.2.0cisco_csaf
No remediation is available at this time.
No fix available6.2.0.1cisco_csaf
No remediation is available at this time.
No fix available6.2.0.2cisco_csaf
No remediation is available at this time.
No fix available6.2.0.3cisco_csaf
No remediation is available at this time.
No fix available6.2.0.4cisco_csaf
No remediation is available at this time.
No fix available6.2.0.5cisco_csaf
No remediation is available at this time.
No fix available6.2.0.6cisco_csaf
No remediation is available at this time.
No fix available6.2.0.7cisco_csaf
No remediation is available at this time.
No fix available6.2.1cisco_csaf
No remediation is available at this time.
No fix available6.2.2cisco_csaf
No remediation is available at this time.
No fix available6.2.2.1cisco_csaf
No remediation is available at this time.
No fix available6.2.2.2cisco_csaf
No remediation is available at this time.
No fix available6.2.2.3cisco_csaf
No remediation is available at this time.
No fix available6.2.2.4cisco_csaf
No remediation is available at this time.
No fix available6.2.3cisco_csaf
No remediation is available at this time.
No fix available6.2.3.1cisco_csaf
No remediation is available at this time.
No fix available6.2.3.10cisco_csaf
No remediation is available at this time.
No fix available6.2.3.11cisco_csaf
No remediation is available at this time.
No fix available6.2.3.12cisco_csaf
No remediation is available at this time.
No fix available6.2.3.13cisco_csaf
No remediation is available at this time.
No fix available6.2.3.14cisco_csaf
No remediation is available at this time.
No fix available6.2.3.2cisco_csaf
No remediation is available at this time.
No fix available6.2.3.3cisco_csaf
No remediation is available at this time.
No fix available6.2.3.4cisco_csaf
No remediation is available at this time.
No fix available6.2.3.5cisco_csaf
No remediation is available at this time.
No fix available6.2.3.6cisco_csaf
No remediation is available at this time.
No fix available6.2.3.7cisco_csaf
No remediation is available at this time.
No fix available6.2.3.9cisco_csaf
No remediation is available at this time.
No fix available6.3.0cisco_csaf
No remediation is available at this time.
No fix available6.3.0.1cisco_csaf
No remediation is available at this time.
No fix availableBasecisco_csaf
No remediation is available at this time.

cvss

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

5.3

010

base score 0–10 · higher = more severe · hover a vector to decode

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

v3.15.3mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:Nprimary · NVD / NIST USexploitability 3.9 · impact 1.4

v3.05.3mediumCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:Nsecondary · ENISA EU

v3.05.3mediumCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:Nsecondary · psirt@cisco.com USexploitability 3.9 · impact 1.4

v3.05.3mediumCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:Nsecondary · Cisco PSIRT US

v3.15.3mediumAV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:Nsecondary · FSTEC (BDU) RU

v3.14.9mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N/E:Usecondary · CVSS-BT (t0sche)

ssvc

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

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

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-20USprimaryCWE-20US

affected products (83)

Products and version ranges known to be affected.

showing 20 of 83

advisories (1)

Vendor and ecosystem advisories describing this.

cisco-sa-alfo-tHwFDmTECisco Firepower Management Center Arbitrary Log File Write Vulnerability2020-05-06csaf · cisco_csafUS
A vulnerability in the web UI of Cisco Firepower Management Center (FMC) Software could allow an unauthenticated, remote attacker to write arbitrary entries to the log file on an affected device. The vulnerability is due to insufficient input validation. An attacker could exploit this vulnerability by sending a crafted HTTP request to an affected device. A successful exploit could allow the attacker to send incorrect information to the system log on the affected system. Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu cisco_csaf NVD CVE.org MITRE

published 2020-05-06modified 2026-06-17

related (25,176)

Related entries.

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+25171 more

references (7)

External citations — patches, advisories, analysis.

scry

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