Emoji Attack Can Kill Skype for Business Chat


November 16th, 2018, By Tara Seals


The “Kitten of Doom” denial-of-service attack is easy to carry out.


A denial of service (DoS) vulnerability in the Skype for Business unified communications platform has been uncovered, which can be triggered by sending large numbers of emojis to the instant messaging client.


According to the SEC Consult Vulnerability Lab, which discovered the flaw (CVE-2018-8546), mounting an attack could not be easier. An attacker needs only to start blasting the target victim’s Skype for Business or Lync client with hundreds of emojis at once, in order to render it useless.


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