CVE-2023-1456

criticalpriority · track · 40EPSS 0.018 · 79 %ileEURUUS

grimoire priorityP2 · Scheduled

Exploitable?

—

no known exploitation

Likely / severe?

1.82% (79th) EPSS

CVSS 9.8 · critical

Is it mine?

3 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · fstec_bdu · nvd

EPSS · scored 2026-10-27

A vulnerability, which was classified as critical, has been found in Ubiquiti EdgeRouter X 2.0.9-hotfix.6. This issue affects some unknown processing of the component NAT Configuration Handler. The manipulation leads to command injection. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used. The real existence of this vulnerability is still doubted at the moment. The identifier VDB-223301 was assigned to this vulnerability. NOTE: The vendor position is that post-authentication issues are not accepted as vulnerabilities.

cvss

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

9.8

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · high–critical · 7.2–9.8

v3.19.8criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hprimary · NVD / NIST USexploitability 3.9 · impact 5.9

v3.19.8criticalAV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:Hsecondary · FSTEC (BDU) RU

v3.17.2highCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:Hsecondary · ENISA EU

v3.17.2highCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:Hsecondary · cna@vuldb.comexploitability 1.2 · impact 5.9

v3.19criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:Usecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-77USprimaryCWE-77US

affected products (3)

Products and version ranges known to be affected.

Ubiquiti EdgeRouter X≤ 2.0.9-hotfix.6enisa_euvdEU
Ubiquiti Networks EdgeRouter≤ 2.0.9 Hotfix6fstec_bduRU
ui edgerouter x firmware= 2.0.9nvdUScpe:2.3:o:ui:edgerouter_x_firmware:*:*:*:*:*:*:*:*

also known as (4)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd fstec_bdu nvd NVD CVE.org MITRE

published 2023-03-25modified 2026-06-17

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+4594 more

references (6)

External citations — patches, advisories, analysis.

https://vuldb.com/?ctiid.223301 cnnvd
https://vuldb.com/?id.223301 cnnvd
https://vuldb.com/?ctiid.223301 enisa_euvd
https://vuldb.com/?id.223301 enisa_euvd
https://vuldb.com/?ctiid.223301Permissions RequiredThird Party Advisorynvd
https://vuldb.com/?id.223301Permissions RequiredThird Party Advisorynvd

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