There are 2 definitions of vuln in English:

vuln1

Syllabification: vuln
Pronunciation: /vəln
 
/

verb

[with object] Heraldry
  • Wound.
    More example sentences
    • A dragon and on its back a pelican vulning herself all Proper.
    • A stag standing vulned in the back with an arrow proper.

Origin

late 16th century: formed irregularly from Latin vulnerare 'to wound'.

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Word of the day milord
Pronunciation: məˈlôrd
noun
used to address an English nobleman

There are 2 definitions of vuln in English:

vuln2

Syllabification: vuln
Pronunciation: /vəln
 
/

noun

  • A vulnerability, especially one associated with computer security: the total of 10 vulns discovered are described as highly critical
    More example sentences
    • There is a potentially troublesome denial of service risk linked to a vuln in the Linux 2.4 kernel, concerning the cacheing of routing information.
    • In tests performed on corporate sites between the start of February and May 20, NTA Monitor found the vuln present in 58 per cent of sites using this software - more than six months after the flaw was widely reported.
    • The networking giant says the vuln is yet to be maliciously exploited, to the best of its knowledge.

More definitions of vuln

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Word of the day milord
Pronunciation: məˈlôrd
noun
used to address an English nobleman