(Bloomberg) -- Juniper Networks Inc. shares fell for a third day after the maker of computer-networking equipment warned customers that it discovered unauthorized code in software that runs on some of its devices, leaving them vulnerable to “complete compromise” by remote cyber-attackers.
The stock tumbled 5 percent Monday, adding to losses at the end of last week following the disclosure. Juniper shares dropped $1.43 to $27.25 at the close in New York, bringing its three-day fall to 7.3 percent.
In a security bulletin and statement released Thursday and updated Sunday, the company outlined how a vulnerability in certain versions of its ScreenOS software for firewall devices could allow outsiders to illicitly log on to network equipment, and how any attackers could cover their tracks. The issue, discovered during a review of internal code, could let the hacker decrypt network traffic, Juniper said. The company said it has developed a patch for the weakness and urged customers to apply it immediately.
“There is no way to detect that this vulnerability was exploited,” Sunnyvale, California-based Juniper said. “We strongly recommend that all customers update their systems and apply these patched releases with the highest priority.”
Juniper isn’t commenting beyond the statements, said Leslie Moore, a company spokeswoman.
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